San Francisco

$266+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to San Francisco (SFO)

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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SFO
Jan 25 — Feb 11
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to San Francisco are usually found in April or September, booked 69 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Pierre Elliott Trudeau Intl to San Francisco

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 December 26, 2025.

This Delta deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:40 pmYUL - SFO
1 stop12h 19mDelta
Mon 1/512:40 amSFO - YUL
1 stop10h 02mDelta
Deal found 12/25$702
This Air Canada deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:45 pmYUL - SFO
1 stop10h 18mAir Canada
Fri 1/26:30 amSFO - YUL
1 stop7h 28mAir Canada
Deal found 12/26$706
This Air Canada deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:10 pmYUL - SFO
2 stops13h 04mAir Canada
Sun 1/411:18 pmSFO - YUL
1 stop9h 05mAir Canada
Deal found 12/26$719
This Air Canada deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:10 pmYUL - SFO
1 stop16h 23mAir Canada
Fri 1/28:25 amSFO - YUL
Nonstop5h 24mAir Canada
Deal found 12/26$743
This FlightHub deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:45 amYUL - SFO
1 stop8h 55mPorter Airlines
Tue 12/301:40 pmSFO - YUL
1 stop7h 55mPorter Airlines
Deal found 12/26$745
This Air Canada deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:10 pmYUL - SFO
1 stop16h 23mAir Canada
Sun 1/411:18 pmSFO - YUL
1 stop8h 05mAir Canada
Deal found 12/26$750
This Delta deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:40 pmYUL - SFO
1 stop12h 17mDelta
Mon 1/512:40 amSFO - YUL
1 stop10h 02mDelta
Deal found 12/25$764
This Air Canada deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:25 pmYUL - SFO
1 stop19h 20mAir Canada
Fri 1/28:25 amSFO - YUL
Nonstop5h 24mAir Canada
Deal found 12/26$767
This Air Canada deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:25 pmYUL - SFO
1 stop8h 40mAir Canada
Sun 1/411:18 pmSFO - YUL
1 stop9h 05mAir Canada
Deal found 12/26$774
This Air Canada deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:10 pmYUL - SFO
1 stop8h 29mAir Canada
Mon 1/57:30 amSFO - YUL
1 stop10h 24mAir Canada
Deal found 12/24$785
This Air Canada deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:00 amYUL - SFO
1 stop10h 25mAir Canada
Sun 1/411:18 pmSFO - YUL
1 stop9h 05mAir Canada
Deal found 12/24$791

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 December 26, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$391
(WestJet)

One-way from

$266
(Delta)

Popular in

December

Cheapest in

April

Average price

$550

Good round-trip deal

$436 or less

Good one-way deal

$319 or less
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-San Francisco flight deals.
Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-San Francisco flights.
From Montreal Pierre Elliott Trudeau Intl to San Francisco
One-way flight from Montreal Pierre Elliott Trudeau Intl to San Francisco
Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to San Francisco.
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to San Francisco.

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 2,558,603 searches. Data last updated December 26, 2025.
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

Pierre Elliott Trudeau Intl

Fly to

San Francisco

Route

Depart

Return

Price

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 3/16

6:45 am-12:45 pm

1 stop9h 00m

San Francisco

Sun 3/22

9:33 pm-12:38 am

2 stops48h 05m

$391

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 4/23

3:20 pm-11:18 pm

1 stop10h 58m

San Francisco

Sat 5/2

11:47 pm-11:15 am

1 stop8h 28m

$391

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 4/23

6:45 am-12:10 pm

2 stops32h 25m

San Francisco

Thu 4/30

7:30 am-12:40 am

2 stops14h 10m

$391

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 5/1

6:45 am-12:23 pm

1 stop8h 38m

San Francisco

Tue 5/5

1:25 pm-12:37 am

1 stop8h 12m

$395

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 5/6

8:05 am-11:17 am

Nonstop6h 12m

San Francisco

Sat 5/9

11:50 am-8:15 pm

Nonstop5h 25m

$400

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 2/19

6:45 am-12:45 pm

1 stop9h 00m

San Francisco

Wed 3/4

8:00 am-10:45 pm

2 stops11h 45m

$405

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 2/18

6:45 am-12:45 pm

1 stop9h 00m

San Francisco

Wed 3/4

8:00 am-1:00 pm

2 stops26h 00m

$405

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 2/18

5:50 pm-9:22 pm

Nonstop6h 32m

San Francisco

Thu 3/5

8:25 am-4:49 pm

Nonstop5h 24m

$407

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sun 1/25

5:50 pm-9:22 pm

Nonstop6h 32m

San Francisco

Thu 2/5

7:30 am-7:25 pm

1 stop8h 55m

$407

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 2/17

5:50 pm-9:22 pm

Nonstop6h 32m

San Francisco

Wed 3/4

8:25 am-4:49 pm

Nonstop5h 24m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 22 results
1
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Compare providers for flights from Pierre Elliott Trudeau Intl to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pierre Elliott Trudeau Intl to San Francisco in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
GotogatePrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-San Francisco flights, users find the pricing of Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-San Francisco flight deals on Cheapflights vs. Gotogate >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-San Francisco flights, Cheapflights users trust Gotogate the most. Gotogate has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 19, 2025.

The best time to book flights from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 $218). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in December is currently the most expensive (average of $293). 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 December 26, 2025.

It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco at noon. By choosing this option you can save up to 61% on the cost of your flight, compared to a flight in the evening.

The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to San Francisco flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Montreal Pierre Elliott Trudeau Intl Airport to San Francisco trip
Airports
YUL

Use YULExpress to pre-book security fast track up to 72 hours before departure for a smoother experience.

SFO

Take BART from SFO to downtown San Francisco for the least expensive travel option, taking about 40 minutes.

Our travel experts
John Walton

John Walton

Expert on YUL

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

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 December 26, 2025.
Get a feel of what it's like to fly with Porter Airlines, United Airlines, and Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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?

    If you book a flight to San Francisco from Montreal Pierre Elliott Trudeau Intl, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 4 flights from Montreal Pierre Elliott Trudeau Intl to San Francisco per day from 3 different airlines.

  • 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 38m. The distance from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco is about 2531 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Porter Airlines, at $196, was found to be the cheapest airline from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco.Alternate airlines to your destination round-trip include Air Canada and United Airlines. You may be able to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco for 53% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco are Porter Airlines ($149), Air Canada ($173), and United Airlines ($196).

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

    Consider Air New Zealand (79%), Brussels Airlines (78%) or Air Canada (73%) when booking your flight. These represent the most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco.

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

    The cheapest flight price from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco is $229. On average you can expect to pay $702. The most popular route, (Montreal Pierre Elliott Trudeau Intl - San Francisco), can usually be booked for $297.

  • 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 $218). Flying from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in December is currently the most expensive (average of $293). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Redwood City
Sunnyvale
San Bruno
Daly City
Santa Clara
San Carlos
Vallejo
Hollister
San Ramon
Foster City
Union City
Davis
Emeryville

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Pierre Elliott Trudeau Intl to San Francisco

Discover the top 3 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 2,558,603 searches. Data last updated December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$253Average$354FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$289Average$425FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$341Average$562FlexibilityNo cancel feeOn-time69%

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