How long is the flight from Montreal to San Francisco?

Airlines like Porter Airlines and Air Transat fly from Montreal to San Francisco in about 8h 59m. The time it takes to get you to your destination can typically vary by up to 06m. Montreal and San Francisco are separated by a distance of 4073 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines flying from Montreal to San Francisco round-trip?

According to our current data, Delta (C$ 322), Porter Airlines (C$ 405), and United Airlines (C$ 424) offers the cheapest pricing from Montreal to San Francisco. You may be able to fly from Montreal to San Francisco for 56% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Montreal to San Francisco one-way?

The cheapest airlines for a one-way flight from Montreal to San Francisco are Porter Airlines (C$ 183), Air Canada (C$ 279), and American Airlines (C$ 292).

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What are the cheapest flights from Montreal to San Francisco?

While on average a flight from Montreal to San Francisco is generally C$ 1,529, our data shows the cheapest flight currently is C$ 279. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Francisco), you can expect to pay C$ 535 for that flight.

What are the most reliable airlines from Montreal to San Francisco?

No one likes to see their flight delayed. When booking a flight from Montreal to San Francisco consider choosing Air Canada (73%), Brussels Airlines (73%) or Air New Zealand (71%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Montreal to San Francisco?

Air Canada, Porter Airlines and United Airlines are the most popular airlines when flying from Montreal to San Francisco.

What airport do you fly into for flights to San Francisco from Montreal?

Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Montreal. On average, San Francisco has 4 inbound flights from Montreal per day from 6 airlines. San Francisco is conveniently located just 17.7 km from San Francisco’s city centre.

Can I find deals for flights from Montreal to San Francisco that include hotel bookings?

Yes. In addition to deals on Montreal to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Montreal to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to San Francisco.

Can I find deals for business class flights from Montreal to San Francisco?

Yes. Cheapflights offers flight deals from Montreal to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 333+ Cheap Flights from Montreal to San Francisco

Cheapflights Tip: The best prices from Montreal to San Francisco are usually found in January or March, booked 90 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Montreal to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Montreal to San Francisco
Explore the most affordable flight options available from Montreal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2026.

Fri 4/126:45 a.m. -

1 stop9h 02m

Sun 6/121:45 p.m. -

1 stop8h 00m

Deal found 30/10C$ 479

Sat 21/116:45 a.m. -

1 stop8h 59m

Fri 27/111:45 p.m. -

1 stop7h 47m

Deal found 2/11C$ 486

Wed 16/126:45 a.m. -

1 stop9h 02m

Sat 13/31:45 p.m. -

1 stop8h 00m

Deal found 2/11C$ 491

Thu 3/126:45 a.m. -

1 stop9h 02m

Fri 4/121:45 p.m. -

1 stop7h 47m

Deal found 2/11C$ 498

Tue 17/116:45 a.m. -

1 stop8h 59m

Wed 25/111:45 p.m. -

1 stop8h 00m

Deal found 2/11C$ 510

Wed 16/126:45 a.m. -

1 stop9h 02m

Sat 13/31:45 p.m. -

1 stop7h 47m

Deal found 2/11C$ 513

Tue 17/116:45 a.m. -

1 stop8h 59m

Wed 25/111:45 p.m. -

1 stop7h 47m

Deal found 2/11C$ 516

Fri 4/126:45 a.m. -

1 stop9h 02m

Tue 8/121:45 p.m. -

1 stop8h 00m

Deal found 29/10C$ 516

Wed 18/115:55 p.m. -

2 stops21h 49m

Wed 25/111:45 p.m. -

1 stop7h 47m

Deal found 2/11C$ 520

Tue 15/126:45 a.m. -

1 stop9h 02m

Sat 13/31:45 p.m. -

1 stop8h 00m

Deal found 29/10C$ 520

Thu 3/126:45 a.m. -

1 stop9h 02m

Sun 6/121:45 p.m. -

1 stop7h 47m

Deal found 2/11C$ 521

Wed 16/126:45 a.m. -

1 stop9h 02m

Wed 31/31:45 p.m. -

1 stop8h 00m

Deal found 29/10C$ 521

Best flights from Montreal to San Francisco
Discover carefully curated flight deals from Montreal to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Thu 18/26:45 a.m. -

1 stop9h 05m

Tue 23/21:45 p.m. -

1 stop7h 54m

Deal found 2/11C$ 534

Thu 19/116:45 a.m. -

1 stop8h 59m

Fri 27/111:45 p.m. -

1 stop7h 47m

Deal found 1/11C$ 609

Fri 12/28:00 p.m. -

2 stops46h 50m

Sun 21/24:40 p.m. -

1 stop19h 10m

Deal found 2/11C$ 651

Wed 18/116:45 a.m. -

1 stop8h 59m

Mon 7/122:17 p.m. -

2 stops25h 03m

Deal found 2/11C$ 717

Tue 16/36:45 a.m. -

1 stop9h 05m

Tue 23/31:45 p.m. -

1 stop8h 00m

Deal found 2/11C$ 588

Wed 18/116:45 a.m. -

1 stop8h 59m

Thu 26/111:45 p.m. -

1 stop7h 47m

Deal found 1/11C$ 609

Tue 16/36:45 a.m. -

1 stop9h 05m

Tue 23/31:45 p.m. -

1 stop7h 47m

Deal found 2/11C$ 591

Thu 19/116:45 a.m. -

1 stop8h 59m

Wed 25/111:45 p.m. -

1 stop7h 47m

Deal found 30/10C$ 611

Mon 22/26:45 a.m. -

1 stop9h 05m

Thu 25/21:45 p.m. -

1 stop8h 00m

Deal found 31/10C$ 619

Fri 19/26:45 a.m. -

1 stop9h 05m

Wed 24/21:45 p.m. -

1 stop7h 54m

Deal found 31/10C$ 622

Wed 18/116:45 a.m. -

1 stop8h 59m

Tue 24/111:45 p.m. -

1 stop7h 47m

Deal found 1/11C$ 697

Fri 19/26:45 a.m. -

1 stop9h 05m

Tue 2/31:45 p.m. -

1 stop7h 47m

Deal found 31/10C$ 622

Sat 30/16:45 a.m. -

1 stop9h 05m

Thu 11/21:45 p.m. -

1 stop8h 00m

Deal found 29/10C$ 622

Sun 31/16:45 a.m. -

1 stop9h 05m

Thu 11/21:45 p.m. -

1 stop8h 00m

Deal found 29/10C$ 622

Thu 28/16:45 a.m. -

1 stop9h 05m

Thu 11/21:45 p.m. -

1 stop8h 00m

Deal found 29/10C$ 622

Tue 2/26:45 a.m. -

1 stop9h 05m

Tue 9/21:45 p.m. -

1 stop8h 00m

Deal found 29/10C$ 622

Fri 18/126:45 a.m. -

1 stop9h 02m

Sat 9/11:45 p.m. -

1 stop7h 54m

Deal found 29/10C$ 623

Tue 16/36:45 a.m. -

1 stop9h 05m

Mon 22/31:45 p.m. -

1 stop8h 00m

Deal found 1/11C$ 625

Sun 4/46:45 a.m. -

1 stop9h 04m

Fri 9/41:45 p.m. -

1 stop8h 00m

Deal found 1/11C$ 625

Wed 24/26:45 a.m. -

1 stop9h 05m

Wed 10/31:45 p.m. -

1 stop7h 47m

Deal found 29/10C$ 626

Thu 25/26:45 a.m. -

1 stop9h 05m

Fri 26/21:45 p.m. -

1 stop7h 54m

Deal found 31/10C$ 707

Sun 22/116:45 a.m. -

1 stop8h 59m

Sun 29/111:45 p.m. -

1 stop8h 00m

Deal found 2/11C$ 815

Sun 21/26:45 a.m. -

1 stop9h 05m

Thu 25/21:45 p.m. -

1 stop8h 00m

Deal found 31/10C$ 826

Thu 4/26:45 a.m. -

2 stops14h 49m

Sun 7/21:45 p.m. -

1 stop8h 00m

Deal found 2/11C$ 851

Find flight deals from Montreal to San Francisco

Round-trip from	C$ 479
One-way from	C$ 333
Popular in	July
Cheapest in	January
Average price	C$ 713
Good round-trip deal	C$ 860 or less
Good one-way deal	C$ 419 or less

Porter Airlines
4/12-6/12
2 total stops
17h 02m total
Montreal to San Francisco

Search Deals

Porter Airlines
20/11-31/12
2 total stops
21h 49m total
Montreal to San Francisco

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (C$ 89 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Price to beat on a round-trip flight from Montreal (YMQ) to San Francisco.

Search Deals

Price to beat on a one-way flight from Montreal (YMQ) to San Francisco.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montreal to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan Francisco

YUL Montreal Pierre Elliott Trudeau Intl - SFO San Francisco

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 20/11

5:55 p.m.-12:44 p.m.

2 stops21h 49m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 333

MontrealSan Francisco

YHU MET - Montreal Metropolitan - SFO San Francisco

YHUSFO

MET - Montreal Metropolitan

Sun 22/11

6:45 a.m.-10:46 a.m.

3 stops31h 01m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 337

MontrealSan Francisco

YHU MET - Montreal Metropolitan - SFO San Francisco

YHUSFO

MET - Montreal Metropolitan

Fri 12/3

6:45 a.m.-12:50 p.m.

1 stop9h 05m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 344

MontrealSan Francisco

YUL Montreal Pierre Elliott Trudeau Intl - SFO San Francisco

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 25/11

6:45 a.m.-12:44 p.m.

1 stop8h 59m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 348

MontrealSan Francisco

YHU MET - Montreal Metropolitan - SFO San Francisco

YHUSFO

MET - Montreal Metropolitan

Wed 25/11

6:45 a.m.-12:44 p.m.

1 stop8h 59m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 349

MontrealSan Francisco

YHU MET - Montreal Metropolitan - SFO San Francisco

YHUSFO

MET - Montreal Metropolitan

Mon 14/12

8:45 a.m.-8:08 p.m.

3 stops38h 23m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 365

MontrealSan Francisco

YHU MET - Montreal Metropolitan - SFO San Francisco

YHUSFO

MET - Montreal Metropolitan

Sat 28/11

6:45 a.m.-12:44 p.m.

1 stop8h 59m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 366

MontrealSan Francisco

YUL Montreal Pierre Elliott Trudeau Intl - SFO San Francisco

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 16/12

8:00 p.m.-3:50 p.m.

2 stops22h 50m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 377

MontrealSan Francisco

YHU MET - Montreal Metropolitan - SFO San Francisco

YHUSFO

MET - Montreal Metropolitan

Sat 12/12

3:40 p.m.-1:22 p.m.

3 stops48h 42m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 380

MontrealSan Francisco

YHU MET - Montreal Metropolitan - SFO San Francisco

YHUSFO

MET - Montreal Metropolitan

Tue 15/12

3:40 p.m.-4:44 p.m.

3 stops52h 04m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 382

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 43 resultsSorted by cheapest first

...

Best time to book a flight from Montreal to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Montreal with our price prediction graph.

YMQ-SFO

YUL-SFO

YHU-SFO

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal to San Francisco

YMQ-SFO

YUL-SFO

YHU-SFO

What is the cheapest month to book a flight from Montreal to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Montreal to San Francisco (average of C$ 583). Flying from Montreal to San Francisco in June is currently the most expensive (average of C$ 846). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YMQ to SFO?

When flying from Montreal to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Montreal to San Francisco

The most flights from YMQ to SFO are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Montreal to San Francisco?

Airfare is below average for this route at the moment.

Montreal to San Francisco flights typically cost between C$ 588 and C$ 1,009 in December.
The cheapest round-trip price found within the last 5 days was C$ 479 on Porter Airlines (4 Dec-6 Dec).

What’s the top layover airport for flights from Montreal to San Francisco?

Toronto (YYZ) – chosen by Cheapflights users on 97% of one-stop itineraries from Montreal to San Francisco on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to San Francisco?

Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of C$ 635.

What’s the fastest layover option from Montreal to San Francisco?

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 8h 49m.

Which airport typically offers the quickest layover for flights from Montreal to San Francisco?

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 34m.

How often are flights from Montreal to San Francisco delayed?

About 26% of weekly flights between Montreal and San Francisco have experienced delays in the past year, with the average delay time being 136 minutes.

What is the most punctual flight time for Montreal to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to San Francisco flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 24% of flights being delayed.

How far ahead should I book a flight from Montreal to San Francisco?

To ensure you get the cheapest price possible for a flight from Montreal to San Francisco, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing San Francisco

Read through reviews of airlines operating flights from Montreal to San Francisco, such as Porter Airlines,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.

Porter Airlines

8.0

Very good

467 reviews

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

United Airlines

7.3

Good

10,465 reviews

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

Air Canada

7.1

Good

11,846 reviews

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

Related info for your journey

What airport do you fly into for flights to San Francisco from Montreal?
Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Montreal. On average, San Francisco has 4 inbound flights from Montreal per day from 6 airlines. San Francisco is conveniently located just 17.7 km from San Francisco’s city centre.
How long is the flight from Montreal to San Francisco?
Airlines like Porter Airlines and Air Transat fly from Montreal to San Francisco in about 8h 59m. The time it takes to get you to your destination can typically vary by up to 06m. Montreal and San Francisco are separated by a distance of 4073 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Montreal to San Francisco round-trip?
According to our current data, Delta (C$ 322), Porter Airlines (C$ 405), and United Airlines (C$ 424) offers the cheapest pricing from Montreal to San Francisco. You may be able to fly from Montreal to San Francisco for 56% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Montreal to San Francisco one-way?
The cheapest airlines for a one-way flight from Montreal to San Francisco are Porter Airlines (C$ 183), Air Canada (C$ 279), and American Airlines (C$ 292).
What are the most reliable airlines from Montreal to San Francisco?
No one likes to see their flight delayed. When booking a flight from Montreal to San Francisco consider choosing Air Canada (73%), Brussels Airlines (73%) or Air New Zealand (71%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Montreal to San Francisco?
While on average a flight from Montreal to San Francisco is generally C$ 1,529, our data shows the cheapest flight currently is C$ 279. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Francisco), you can expect to pay C$ 535 for that flight.
Can I find deals for flights from Montreal to San Francisco that include hotel bookings?
Yes. In addition to deals on Montreal to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Montreal to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to San Francisco.
Can I find deals for business class flights from Montreal to San Francisco?
Yes. Cheapflights offers flight deals from Montreal to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Montreal to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Montreal to San Francisco (average of C$ 583). Flying from Montreal to San Francisco in June is currently the most expensive (average of C$ 846). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Santa Clara

San Bruno

Burlingame

Roseville

Livermore

South San Francisco

Novato

Manteca

Vallejo

Browse thousands of different options on Cheapflights for your next trip

Airlines

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Complete your trip

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Other flight options

Other flights from Montreal

Popular flights

San Francisco flight routes

Fly from Montreal to San Francisco on these airlines

Air Canada flights from Montreal to San Francisco

United Airlines flights from Montreal to San Francisco

Top 6 airlines flying from Montreal to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
Delta	CheapestC$ 322	AverageC$ 724	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Porter Airlines	CheapestC$ 405	AverageC$ 558	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
United Airlines	CheapestC$ 424	AverageC$ 787	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 438	AverageC$ 541	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Air Canada	CheapestC$ 481	AverageC$ 790	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Air Transat	CheapestC$ 520	AverageC$ 634	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights

Fly with Cheapflights

How does Cheapflights help users find flights from Montreal to San Francisco?

Deals for Montreal to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Montreal to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Montreal to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Montreal to San Francisco with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Montreal to San Francisco, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Montreal to San Francisco become cheaper?

Not ready to book yet? You can track prices for flights from Montreal to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Montreal to San Francisco from C$ 333

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Montreal to San Francisco

Cheapest flights from Montreal to San FranciscoExplore the most affordable flight options available from Montreal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2026.

Explore the most affordable flight options available from Montreal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2026.

Best flights from Montreal to San FranciscoDiscover carefully curated flight deals from Montreal to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Discover carefully curated flight deals from Montreal to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Direct flights from Montreal to San FranciscoExplore direct flight options from Montreal to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 November 2026.

Explore direct flight options from Montreal to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 November 2026.

Last-minute flights from Montreal to San FranciscoDiscover last-minute flight deals from Montreal to San Francisco. Data last updated 3 November 2026 and is based on user searches.

Discover last-minute flight deals from Montreal to San Francisco. Data last updated 3 November 2026 and is based on user searches.

One-way flights from Montreal to San FranciscoSearch for one-way flight options from Montreal to San Francisco. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Search for one-way flight options from Montreal to San Francisco. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Find flight deals from Montreal to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montreal to San Francisco that are best for you.

Best time to book a flight from Montreal to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Montreal with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Montreal to San Francisco?

What is the cheapest time of day to fly from YMQ to SFO?

Find hourly flight availability from Montreal to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 November 2026.

When flying from Montreal to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Montreal to San Francisco

The most flights from YMQ to SFO are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Montreal to San Francisco?

Airfare is below average for this route at the moment.

Montreal to San Francisco flights typically cost between C$ 588 and C$ 1,009 in December.The cheapest round-trip price found within the last 5 days was C$ 479 on Porter Airlines (4 Dec-6 Dec).

What’s the top layover airport for flights from Montreal to San Francisco?

Share of one-stop round-trip flights from Montreal to San Francisco chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 97% of one-stop itineraries from Montreal to San Francisco on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to San Francisco?

Average round-trip fare for 1-stop flights from Montreal to San Francisco, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of C$ 635.

What’s the fastest layover option from Montreal to San Francisco?

Shortest average travel time for 1-stop one-way flights from Montreal to San Francisco, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 8h 49m.

Which airport typically offers the quickest layover for flights from Montreal to San Francisco?

Average layover duration for 1-stop one-way flights from Montreal to San Francisco, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 34m.

How often are flights from Montreal to San Francisco delayed?

About 26% of weekly flights between Montreal and San Francisco have experienced delays in the past year, with the average delay time being 136 minutes.

What is the most punctual flight time for Montreal to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to San Francisco flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 24% of flights being delayed.

How far ahead should I book a flight from Montreal to San Francisco?

To ensure you get the cheapest price possible for a flight from Montreal to San Francisco, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing San Francisco

Read through reviews of airlines operating flights from Montreal to San Francisco, such as Porter Airlines,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to San Francisco from Montreal?

How long is the flight from Montreal to San Francisco?

What are the cheapest airlines flying from Montreal to San Francisco round-trip?

What are the cheapest airlines to fly from Montreal to San Francisco one-way?

What are the most reliable airlines from Montreal to San Francisco?

What are the cheapest flights from Montreal to San Francisco?

Can I find deals for flights from Montreal to San Francisco that include hotel bookings?

How can I find direct flights from Montreal to San Francisco?

Can I find deals for business class flights from Montreal to San Francisco?

What is the cheapest month to book a flight from Montreal to San Francisco?

Travelling to a place near San Francisco?

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Fly from Montreal to San Francisco on these airlines

Choose from the following airlines for your flight from Montreal to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 3 November 2026.

Alternative routes for Montreal to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Francisco by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to California

Cheapest flights from Montreal to San Francisco
Explore the most affordable flight options available from Montreal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2026.

Best flights from Montreal to San Francisco
Discover carefully curated flight deals from Montreal to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Direct flights from Montreal to San Francisco
Explore direct flight options from Montreal to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 November 2026.

Last-minute flights from Montreal to San Francisco
Discover last-minute flight deals from Montreal to San Francisco. Data last updated 3 November 2026 and is based on user searches.

One-way flights from Montreal to San Francisco
Search for one-way flight options from Montreal to San Francisco. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Montreal to San Francisco flights typically cost between C$ 588 and C$ 1,009 in December.
The cheapest round-trip price found within the last 5 days was C$ 479 on Porter Airlines (4 Dec-6 Dec).