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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco from C$ 278

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 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SFO
30 May — 6 Jun1
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 September or November, 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 30 April 2026.

Thu 13/86:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Thu 20/86:05 p.m.
SFO
-
YUL
2 stops19h 40m
WestJet
Deal found 27/4C$ 464
Mon 21/98:00 p.m.
YUL
-
SFO
1 stop19h 00m
WestJet
Mon 5/101:00 p.m.
SFO
-
YUL
2 stops24h 45m
WestJet
Deal found 25/4C$ 467
Wed 8/76:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Thu 16/76:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 27/4C$ 468
Sun 24/56:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Mon 1/66:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 26/4C$ 469
Tue 15/98:00 p.m.
YUL
-
SFO
1 stop19h 00m
WestJet
Sun 20/91:00 p.m.
SFO
-
YUL
1 stop15h 05m
WestJet
Deal found 26/4C$ 472
Tue 23/67:15 a.m.
YUL
-
SFO
1 stop17h 40m
WestJet
Tue 7/76:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 26/4C$ 473
Sat 22/86:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Wed 2/96:00 a.m.
SFO
-
YUL
1 stop22h 05m
WestJet
Deal found 25/4C$ 475
Wed 23/96:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Thu 8/106:00 a.m.
SFO
-
YUL
1 stop14h 45m
WestJet
Deal found 25/4C$ 476
Mon 13/78:00 p.m.
YUL
-
SFO
1 stop28h 55m
WestJet
Mon 20/76:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 27/4C$ 479
Wed 8/76:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Wed 26/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 30/4C$ 484

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 30 April 2026.

Round-trip from

C$ 464

One-way from

C$ 278

Popular in

December

Cheapest in

September

Average price

C$ 583

Good round-trip deal

C$ 744 or less

Good one-way deal

C$ 354 or less
WestJet
  • WestJet
  • 13/8-20/8
  • 4 total stops
  • 32h 35m total
  • Montreal to San Francisco
Search Deals
WestJet
  • WestJet
  • 23/7
  • 2 total stops
  • 12h 55m total
  • Montreal to San Francisco
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 30 April 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

Thu 21/5

6:00 a.m.-2:15 p.m.

1 stop11h 15m

San Francisco

Tue 26/5

8:25 a.m.-11:57 p.m.

1 stop12h 32m

C$ 534

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 5/6

6:35 p.m.-1:15 a.m.

1 stop9h 40m

San Francisco

Sun 21/6

11:59 p.m.-1:09 p.m.

1 stop10h 10m

C$ 535

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

12:40 p.m.-7:05 p.m.

1 stop9h 25m

San Francisco

Mon 22/6

5:40 a.m.-4:17 p.m.

1 stop7h 37m

C$ 554

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

2:20 p.m.-8:49 p.m.

1 stop9h 29m

San Francisco

Tue 27/10

10:50 p.m.-1:51 p.m.

1 stop12h 01m

C$ 595

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

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

Nonstop5h 38m

C$ 603

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

2:20 p.m.-9:30 p.m.

1 stop10h 10m

San Francisco

Wed 30/9

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

Nonstop5h 30m

C$ 613

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 13/8

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

Nonstop6h 15m

San Francisco

Thu 20/8

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

1 stop9h 05m

C$ 617

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

Sun 6/9

6:05 a.m.-5:30 p.m.

1 stop8h 25m

C$ 618
Quickest round-trip

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

Sat 29/8

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

Nonstop5h 30m

C$ 620

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sun 24/5

8:10 a.m.-11:25 a.m.

Nonstop6h 15m

San Francisco

Sat 30/5

4:21 p.m.-10:40 a.m.

1 stop15h 19m

C$ 631

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of C$ 513). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in December is currently the most expensive (average of C$ 763). 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 30 April 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 30 April 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
435 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

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
435 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

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
8,468 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

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
9,678 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

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
3,328 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

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
10,982 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

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 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day from 5 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 9h 40m. 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$ 368, respectively. These flights start at 58% 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$ 233. 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 Air Canada (55%), Brussels Airlines (54%) or United Airlines (53%) 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$ 1,023 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco. The cheapest flight overall is C$ 286 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - San Francisco) is currently priced at C$ 450.

  • 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, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco (average of C$ 513). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in December is currently the most expensive (average of C$ 763). 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
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 30 April 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 30 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 254AverageC$ 671FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 282AverageC$ 434FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 368AverageC$ 533FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 377AverageC$ 603FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 444AverageC$ 639FlexibilityNo 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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