$145 Cheap Flights from San Francisco (SFO) to Montreal (YUL)

View $145 flight on Mon, Aug 11, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from San Francisco to Montreal (SFO-YUL)

Prices were available within the past 7 days and start at $145 for one-way flights and $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, May 1 - Thu, May 8
SFO
San Francisco
YUL
Montreal
$308 Roundtrip, found 6 days ago
$308
Roundtrip
found 6 days ago
Select Air Canada flight, departing Thu, May 1 from San Francisco to Montreal, returning Thu, May 8, priced at $308 found 6 days ago
American Airlines
Sat, May 17 - Sat, May 17
SFO
San Francisco
YUL
Montreal
$313 Roundtrip, found 6 days ago
$313
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, May 17 from San Francisco to Montreal, returning Sat, May 17, priced at $313 found 6 days ago
WestJet
Wed, Aug 20 - Sat, Aug 30
SFO
San Francisco
YUL
Montreal
$323 Roundtrip, found 3 days ago
$323
Roundtrip
found 3 days ago
Select WestJet flight, departing Wed, Aug 20 from San Francisco to Montreal, returning Sat, Aug 30, priced at $323 found 3 days ago
WestJet
Tue, Sep 2 - Sun, Sep 14
SFO
San Francisco
YUL
Montreal
$328 Roundtrip, found 5 days ago
$328
Roundtrip
found 5 days ago
Select WestJet flight, departing Tue, Sep 2 from San Francisco to Montreal, returning Sun, Sep 14, priced at $328 found 5 days ago
WestJet
Wed, Jul 23 - Wed, Jul 30
SFO
San Francisco
YUL
Montreal
$328 Roundtrip, found 4 days ago
$328
Roundtrip
found 4 days ago
Select WestJet flight, departing Wed, Jul 23 from San Francisco to Montreal, returning Wed, Jul 30, priced at $328 found 4 days ago
Porter Airlines
Thu, May 1 - Thu, May 8
SFO
San Francisco
YUL
Montreal
$332 Roundtrip, found 6 days ago
$332
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Thu, May 1 from San Francisco to Montreal, returning Thu, May 8, priced at $332 found 6 days ago
Porter Airlines
Thu, May 8 - Wed, May 28
SFO
San Francisco
YUL
Montreal
$336 Roundtrip, found 6 days ago
$336
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Thu, May 8 from San Francisco to Montreal, returning Wed, May 28, priced at $336 found 6 days ago
WestJet
Sun, Aug 31 - Sat, Sep 20
SFO
San Francisco
YUL
Montreal
$337 Roundtrip, found 4 days ago
$337
Roundtrip
found 4 days ago
Select WestJet flight, departing Sun, Aug 31 from San Francisco to Montreal, returning Sat, Sep 20, priced at $337 found 4 days ago
WestJet
Sun, Jun 1 - Wed, Oct 29
SFO
San Francisco
YUL
Montreal
$340 Roundtrip, found 3 days ago
$340
Roundtrip
found 3 days ago
Select WestJet flight, departing Sun, Jun 1 from San Francisco to Montreal, returning Wed, Oct 29, priced at $340 found 3 days ago
United
Thu, May 1 - Thu, May 8
SFO
San Francisco
YUL
Montreal
$340 Roundtrip, found 6 days ago
$340
Roundtrip
found 6 days ago
Select United flight, departing Thu, May 1 from San Francisco to Montreal, returning Thu, May 8, priced at $340 found 6 days ago
Flights from San Francisco (SFO) to Montreal (YUL)
Origin airport
San Francisco Intl.
Destination airport
Pierre Elliott Trudeau Intl.
Airlines serving
Air Canada, American Airlines, Delta, Porter Airlines, United, WestJet
Roundtrip price
$308
Distance
2532 mi

San Francisco to Montreal Flights

The cheapest times to fly from San Francisco to Montreal

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Montreal are during the month of May. You can find some of the cheapest flights from San Francisco to Montreal with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Francisco to Montreal

Sunday is one of the best days to book for cheap flights from San Francisco to Montreal: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Francisco to Montreal

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Montreal in 2025. You can also book with separate airlines for your outbound and return journeys, from $145 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Montreal flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Montreal airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL) cost?
You can pick up cheap return flights starting at $351 from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United and Air Canada flight leaving SFO on May 8 2025 and touching down at YUL. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from SFO to YUL?
The cheapest flights from SFO to YUL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL)?
You can fly nonstop from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL) on an Air Canada flight.
What is the cheapest airline that flies from SFO to YUL?
With prices starting from $165 for a one-way journey from SFO to YUL, Air Canada is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SFO on July 16 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL)?
On average, you’ll only find 1 nonstop flight departing from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL) every day. If this doesn’t fit your travel plans, check out flights with a layover. Simply filter your search on Expedia to include one stop or more to discover the next best option.
What are the most popular departure times for flights from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL)?
More travelers fly between SFO and YUL at 8 AM than at any other point in the day. Rather go when it’s quieter? Pick a flight outside the busiest times and you could save on your ticket as well.
What day of the week has the most flights from SFO to YUL?
Saturday offers the most flights from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL). Consider taking off on this day and you’ll have the best chance of finding a departure that works with your plans.
What is the earliest flight from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL)?
The first flight of the day taking off from San Francisco Intl. Airport (SFO) is at around 8:30AM UTC-8. Catch this flight and you’ll arrive at Pierre Elliott Trudeau Intl. Airport (YUL) at approximately 4:58PM UTC-5. The overall travel time is 5h 28m.
How long does it take to fly from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL)?
It takes approximately 5 hours and 28 minutes to fly the 2,500 mi from SFO to YUL.
What airline has the least delays from SFO to YUL?
With 83% of journeys generally landing on schedule, Porter Airlines has the best on-time performance for direct flights from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL). To monitor your flight status and receive notifications if anything changes, use the Expedia App.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL)?
To reach Pierre Elliott Trudeau Intl. Airport (YUL) without delays, pick a flight that leaves San Francisco Intl. Airport (SFO) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Montreal from San Francisco Intl. Airport (SFO)?
Check out your flight options from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL). This is the only Montreal airport you can jet into if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL) last-minute?
Booking your ticket from SFO to YUL right before your getaway is generally more expensive. But if there’s some wiggle room with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a SFO to YUL flight and hotel package?
Opting for a SFO to YUL flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Pierre Elliott Trudeau Intl. Airport (YUL)?
In most instances, you can cancel or reschedule your SFO to YUL flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline’s fees and policies on flight changes, or if you want further information, head to our Customer Service portal.

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*Available to One Key members.