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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco from C$ 244

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SFO
16 Apr — 23 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to San Francisco are usually found in April or May, booked 36 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Pierre Elliott Trudeau Intl to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to San Francisco
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 March 2026.

Fri 1/56:45 a.m.
YUL
-
SFO
1 stop8h 35m
Porter Airlines
Mon 4/51:20 p.m.
SFO
-
YUL
1 stop8h 17m
Porter Airlines
Deal found 16/3C$ 415
Sat 2/56:45 a.m.
YUL
-
SFO
1 stop8h 35m
Porter Airlines
Mon 11/51:20 p.m.
SFO
-
YUL
1 stop8h 17m
Porter Airlines
Deal found 12/3C$ 416
Fri 1/56:45 a.m.
YUL
-
SFO
1 stop8h 35m
Porter Airlines
Tue 5/51:20 p.m.
SFO
-
YUL
1 stop8h 17m
Porter Airlines
Deal found 16/3C$ 418
Thu 16/43:45 p.m.
YUL
-
SFO
1 stop10h 24m
American Airlines
Tue 21/49:08 a.m.
SFO
-
YUL
1 stop10h 50m
American Airlines
Deal found 12/3C$ 420
Wed 1/43:45 p.m.
YUL
-
SFO
1 stop10h 59m
American Airlines
Tue 7/412:30 a.m.
SFO
-
YUL
1 stop19h 28m
American Airlines
Deal found 12/3C$ 426
Mon 27/47:45 a.m.
YUL
-
SFO
1 stop18h 07m
American Airlines
Mon 4/510:28 p.m.
SFO
-
YUL
1 stop12h 24m
American Airlines
Deal found 13/3C$ 429
Wed 10/68:00 p.m.
YUL
-
SFO
1 stop19h 00m
WestJet
Sun 14/66:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 16/3C$ 430
Tue 12/56:45 a.m.
YUL
-
SFO
1 stop8h 35m
Porter Airlines
Wed 27/51:20 p.m.
SFO
-
YUL
1 stop8h 17m
Porter Airlines
Deal found 15/3C$ 431
Thu 7/56:45 a.m.
YUL
-
SFO
1 stop8h 35m
Porter Airlines
Wed 13/51:20 p.m.
SFO
-
YUL
1 stop8h 17m
Porter Airlines
Deal found 13/3C$ 437
Fri 10/46:45 a.m.
YUL
-
SFO
1 stop9h 00m
Porter Airlines
Thu 16/41:45 p.m.
SFO
-
YUL
1 stop7h 50m
Porter Airlines
Deal found 13/3C$ 440

Find flight deals from Pierre Elliott Trudeau Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 March 2026.

Round-trip from

C$ 415

One-way from

C$ 244

Popular in

December

Cheapest in

April

Average price

C$ 657

Good round-trip deal

C$ 795 or less

Good one-way deal

C$ 424 or less
Porter Airlines
  • Porter Airlines
  • 1/5-4/5
  • 2 total stops
  • 16h 52m total
  • Montreal to San Francisco
Search Deals
Porter Airlines
  • Porter Airlines
  • 7/4
  • 1 total stop
  • 9h 00m total
  • Montreal to San Francisco
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to San Francisco.
Search Deals
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 17 March 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

6:45 a.m.-12:20 p.m.

1 stop8h 35m

San Francisco

Wed 6/5

1:20 p.m.-12:37 a.m.

1 stop8h 17m

C$ 487

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

6:35 p.m.-1:16 a.m.

1 stop9h 41m

San Francisco

Mon 11/5

11:56 p.m.-10:40 a.m.

1 stop7h 44m

C$ 533

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

12:42 p.m.-7:07 p.m.

1 stop9h 25m

San Francisco

Sun 10/5

9:55 p.m.-11:35 a.m.

1 stop10h 40m

C$ 555

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

7:00 a.m.-10:07 p.m.

2 stops18h 07m

San Francisco

Fri 8/5

9:55 p.m.-11:35 a.m.

1 stop10h 40m

C$ 582

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

6:10 a.m.-12:25 p.m.

1 stop9h 15m

San Francisco

Sun 30/8

11:46 p.m.-8:16 a.m.

Nonstop5h 30m

C$ 591

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 21/4

6:00 p.m.-9:22 p.m.

Nonstop6h 22m

San Francisco

Fri 24/4

10:50 p.m.-11:51 a.m.

1 stop10h 01m

C$ 622

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

12:42 p.m.-11:19 p.m.

1 stop13h 37m

San Francisco

Wed 15/4

6:00 a.m.-11:08 p.m.

2 stops14h 08m

C$ 624

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

6:35 p.m.-9:50 p.m.

Nonstop6h 15m

San Francisco

Wed 26/8

5:05 a.m.-5:30 p.m.

1 stop9h 25m

C$ 628

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

5:40 p.m.-9:02 p.m.

Nonstop6h 22m

San Francisco

Sun 24/5

10:52 p.m.-5:38 p.m.

1 stop15h 46m

C$ 637
Quickest round-trip

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 29/6

6:35 p.m.-9:51 p.m.

Nonstop6h 16m

San Francisco

Mon 6/7

11:47 p.m.-8:25 a.m.

Nonstop5h 38m

C$ 656

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Pierre Elliott Trudeau Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Pierre Elliott Trudeau Intl with our price prediction graph.
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 Pierre Elliott Trudeau Intl Airport to San Francisco

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to San Francisco. Price data was last updated on 13 March 2026.

The price you pay for your flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 36 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of C$ 335). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in January is currently the most expensive (average of C$ 438). 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 YUL to SFO?

Find hourly flight availability from Pierre Elliott Trudeau Intl 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 17 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco as you normally would.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 17 March 2026.
See what other customers who have flown with Porter Airlines,Delta, andUnited Airlines from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
424 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
424 reviews
Porter Airlines
8.0
Very good
424 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Delta
7.9
Good
8,288 reviews
Porter Airlines
8.0
Very good
424 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,431 reviews
Porter Airlines
8.0
Very good
424 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,296 reviews
Porter Airlines
8.0
Very good
424 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,811 reviews
Porter Airlines
8.0
Very good
424 reviews
Check prices

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Montreal Pierre Elliott Trudeau Intl?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Montreal Pierre Elliott Trudeau Intl. On average, San Francisco has 4 inbound flights from Montreal Pierre Elliott Trudeau Intl per day from 5 airlines. San Francisco is conveniently located just 19.0 km from San Francisco’s city centre.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

    Departing from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco will take you 8h 35m. Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport to San Francisco round-trip?

    Flying on Delta is currently your cheapest option to San Francisco, with prices starting at C$ 254. Additional round-trip tickets that might be worth considering are offered by WestJet and Porter Airlines, with the lowest prices starting at C$ 282 and C$ 334, respectively. These flights start at 56% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco one-way?

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 234. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco for a low price.

  • What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

    No one likes to see their flight delayed. When booking a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco consider choosing Brussels Airlines (62%), Air Canada (62%) or United Airlines (62%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

    On average you can expect to pay C$ 1,312 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco. The cheapest flight overall is C$ 273 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Francisco) is currently priced at C$ 387.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to San Francisco that include hotel bookings?

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

  • How can I find direct flights from Pierre Elliott Trudeau Intl to San Francisco?

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

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to San Francisco?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to San Francisco?

    Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of C$ 335). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in January is currently the most expensive (average of C$ 438). 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

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Burlingame
South San Francisco
Scotts Valley
Novato
Santa Clara
Vallejo

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Fly from Pierre Elliott Trudeau Intl to San Francisco on these airlines

Choose from the following airlines for your flight from Pierre Elliott Trudeau Intl to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 17 March 2026.
Air Canada flights from Montreal Pierre Elliott Trudeau Intl to San Francisco
United Airlines flights from Montreal Pierre Elliott Trudeau Intl to San Francisco

Top 5 airlines flying from Pierre Elliott Trudeau Intl to San Francisco

Discover the top 5 airlines that operate flights from Pierre Elliott Trudeau Intl to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 254AverageC$ 671FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 282AverageC$ 387FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 334AverageC$ 484FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 391AverageC$ 583FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 446AverageC$ 614FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to San Francisco?

Cheapflights makes it easy to find Pierre Elliott Trudeau Intl to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to San Francisco?

Cheapflights simply makes it quick and affordable to book flights from Pierre Elliott Trudeau Intl to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to San Francisco with no change fees?

Need flexible booking options for your flight to San Francisco from Pierre Elliott Trudeau Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to San Francisco become cheaper?

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

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