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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco from C$ 323

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SFO
15 Jul — 22 Jul1
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 November or January, booked 36 days in advance, depart on a Friday or Tuesday 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 15 June 2026.

Fri 7/86:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Sun 9/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 10/6C$ 541
Wed 26/86:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Wed 9/96:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 12/6C$ 543
Wed 12/85:30 p.m.
YUL
-
SFO
1 stop31h 25m
WestJet
Wed 19/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 10/6C$ 544
Thu 23/76:45 a.m.
YUL
-
SFO
2 stops32h 15m
WestJet
Mon 27/76:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 11/6C$ 545
Fri 21/87:15 a.m.
YUL
-
SFO
1 stop17h 40m
WestJet
Mon 24/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 12/6C$ 548
Fri 14/85:30 p.m.
YUL
-
SFO
1 stop31h 25m
WestJet
Tue 18/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 14/6C$ 550
Tue 21/78:00 p.m.
YUL
-
SFO
1 stop28h 55m
WestJet
Fri 7/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 12/6C$ 551
Tue 30/66:45 a.m.
YUL
-
SFO
1 stop8h 35m
Porter Airlines
Tue 7/71:20 p.m.
SFO
-
YUL
1 stop8h 17m
Porter Airlines
Deal found 14/6C$ 552
Tue 11/86:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Thu 20/86:00 a.m.
SFO
-
YUL
1 stop14h 45m
WestJet
Deal found 13/6C$ 554
Tue 28/75:30 p.m.
YUL
-
SFO
1 stop31h 25m
WestJet
Tue 4/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 12/6C$ 555
Tue 30/66:45 a.m.
YUL
-
SFO
1 stop8h 35m
Porter Airlines
Tue 14/71:20 p.m.
SFO
-
YUL
1 stop8h 17m
Porter Airlines
Deal found 14/6C$ 557
Mon 24/88:00 p.m.
YUL
-
SFO
1 stop28h 55m
WestJet
Wed 2/96:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 10/6C$ 558

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 15 June 2026.

Round-trip from

C$ 541

One-way from

C$ 323

Popular in

June

Cheapest in

November

Average price

C$ 814

Good round-trip deal

C$ 734 or less

Good one-way deal

C$ 351 or less
WestJet
  • WestJet
  • 7/8-9/8
  • 3 total stops
  • 22h 55m total
  • Montreal to San Francisco
Search Deals
Porter Airlines
  • Porter Airlines
  • 8/10
  • 1 total stop
  • 8h 35m total
  • Montreal to San Francisco
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 15 June 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

Wed 1/7

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

Nonstop6h 16m

San Francisco

Sun 5/7

11:38 p.m.-8:16 a.m.

Nonstop5h 38m

C$ 583

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 21/8

6:35 p.m.-9:48 p.m.

Nonstop6h 13m

San Francisco

Mon 31/8

11:30 p.m.-10:40 a.m.

1 stop8h 10m

C$ 603

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 1/7

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

Nonstop6h 16m

San Francisco

Mon 6/7

11:38 p.m.-8:16 a.m.

Nonstop5h 38m

C$ 604

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 4/7

6:10 a.m.-11:38 a.m.

1 stop8h 28m

San Francisco

Sun 5/7

11:38 p.m.-8:16 a.m.

Nonstop5h 38m

C$ 611
Quickest round-trip

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

6:35 p.m.-9:48 p.m.

Nonstop6h 13m

San Francisco

Fri 11/9

11:39 p.m.-8:16 a.m.

Nonstop5h 37m

C$ 636

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 27/8

6:35 p.m.-9:48 p.m.

Nonstop6h 13m

San Francisco

Tue 8/9

10:35 p.m.-2:40 p.m.

1 stop13h 05m

C$ 636

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

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

1 stop8h 35m

San Francisco

Fri 18/9

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

1 stop8h 17m

C$ 653

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 22/7

6:10 a.m.-11:38 a.m.

1 stop8h 28m

San Francisco

Sat 25/7

11:38 p.m.-8:16 a.m.

Nonstop5h 38m

C$ 660

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 15/7

6:10 a.m.-11:38 a.m.

1 stop8h 28m

San Francisco

Mon 20/7

11:38 p.m.-8:16 a.m.

Nonstop5h 38m

C$ 661

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 3/10

6:35 p.m.-9:48 p.m.

Nonstop6h 13m

San Francisco

Sun 4/10

11:30 p.m.-10:40 a.m.

1 stop8h 10m

C$ 670

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/6

Showing 1-10 of 21 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?

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 35 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, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of C$ 572). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in June is currently the most expensive (average of C$ 814). 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 15 June 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.

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco?

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 15 June 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
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
438 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Delta
7.9
Good
8,395 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
United Airlines
7.4
Good
9,830 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
WestJet
7.2
Good
3,362 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,194 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

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 6 inbound flights from Montreal Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to San Francisco?

    Departing from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco will take you 6h 16m. Montreal Pierre Elliott Trudeau Intl Airport and San Francisco are separated by a distance of 4073 km. Most flights are nonstop.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco round-trip?

    Flying on American Airlines is currently your cheapest option to San Francisco, with prices starting at C$ 242. Additional round-trip tickets that might be worth considering are offered by WestJet and Delta, with the lowest prices starting at C$ 288 and C$ 322, respectively. These flights start at 64% 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$ 239. However, be on the lookout for offers from Air Canada and American 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 (71%), Air Canada (70%) or United Airlines (69%) 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$ 1,058 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco. The cheapest flight overall is C$ 326 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Francisco) is currently priced at C$ 579.

  • 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, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of C$ 572). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in June is currently the most expensive (average of C$ 814). 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
San Bruno
Roseville
Livermore
South San Francisco
Novato
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 15 June 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 6 airlines flying from Pierre Elliott Trudeau Intl to San Francisco

Discover the top 6 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 15 June 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 242AverageC$ 595FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 288AverageC$ 446FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 322AverageC$ 724FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 376AverageC$ 574FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 379AverageC$ 699FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 462AverageC$ 683FlexibilityNo 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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