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£163 Cheap Flights from Montreal (YUL) to San Francisco (SFO)

View £163 flight on Wed, 7 Oct 2026Opens in a new window

Popular airlines from Trudeau International Airport (YUL) to San Francisco International Airport (SFO)

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

Prices were available within the past 7 days and start at £163 for one-way flights and £295 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Thu, 24 Sept - Wed, 30 Sept
YUL
Montreal
SFO
San Francisco
£295 Return, found 5 days ago
£295
Return
found 5 days ago
Select WestJet flight, departing Thu, 24 Sept from Montreal to San Francisco, returning Wed, 30 Sept, priced at £295 found 5 days ago
Porter Airlines
Wed, 23 Sept - Wed, 30 Sept
YUL
Montreal
SFO
San Francisco
£298 Return, found 5 days ago
£298
Return
found 5 days ago
Select Porter Airlines flight, departing Wed, 23 Sept from Montreal to San Francisco, returning Wed, 30 Sept, priced at £298 found 5 days ago
WestJet
Thu, 24 Sept - Wed, 30 Sept
YUL
Montreal
SFO
San Francisco
£299 Return, found 5 days ago
£299
Return
found 5 days ago
Select WestJet flight, departing Thu, 24 Sept from Montreal to San Francisco, returning Wed, 30 Sept, priced at £299 found 5 days ago
WestJet
Wed, 7 Oct - Sun, 18 Oct
YUL
Montreal
SFO
San Francisco
£303 Return, found 3 days ago
£303
Return
found 3 days ago
Select WestJet flight, departing Wed, 7 Oct from Montreal to San Francisco, returning Sun, 18 Oct, priced at £303 found 3 days ago
WestJet
Wed, 7 Oct - Sun, 18 Oct
YUL
Montreal
SFO
San Francisco
£305 Return, found 3 days ago
£305
Return
found 3 days ago
Select WestJet flight, departing Wed, 7 Oct from Montreal to San Francisco, returning Sun, 18 Oct, priced at £305 found 3 days ago
WestJet
Wed, 7 Oct - Sun, 18 Oct
YUL
Montreal
SFO
San Francisco
£309 Return, found 3 days ago
£309
Return
found 3 days ago
Select WestJet flight, departing Wed, 7 Oct from Montreal to San Francisco, returning Sun, 18 Oct, priced at £309 found 3 days ago
WestJet
Wed, 7 Oct - Wed, 14 Oct
YUL
Montreal
SFO
San Francisco
£312 Return, found 3 days ago
£312
Return
found 3 days ago
Select WestJet flight, departing Wed, 7 Oct from Montreal to San Francisco, returning Wed, 14 Oct, priced at £312 found 3 days ago
WestJet
Thu, 24 Sept - Wed, 30 Sept
YUL
Montreal
SFO
San Francisco
£317 Return, found 5 days ago
£317
Return
found 5 days ago
Select WestJet flight, departing Thu, 24 Sept from Montreal to San Francisco, returning Wed, 30 Sept, priced at £317 found 5 days ago
WestJet
Wed, 7 Oct - Sun, 18 Oct
YUL
Montreal
SFO
San Francisco
£320 Return, found 3 days ago
£320
Return
found 3 days ago
Select WestJet flight, departing Wed, 7 Oct from Montreal to San Francisco, returning Sun, 18 Oct, priced at £320 found 3 days ago
Air Canada
Thu, 3 Sept - Thu, 10 Sept
YUL
Montreal
SFO
San Francisco
£383 Return, just found
£383
Return
just found
Select Air Canada flight, departing Thu, 3 Sept from Montreal to San Francisco, returning Thu, 10 Sept, priced at £383 just found

Alternative airports near San Francisco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Francisco Intl. SFO. Cheapest and Closest option available. Average driving time to city centre is 19 minutes. Flights from £500
SFO
San Francisco Intl.
CheapestClosest
Average driving time to city centre19 min
Flights from £500

Frequently asked questions

How much does a flight from Montreal, QC (YUL) to San Francisco, CA (SFO) cost?
You can find one-way and return flights from Montreal, QC (YUL) to San Francisco, CA (SFO) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when YUL to SFO ticket fares go up or down.
What is the cheapest month to fly from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
The cheapest months to fly from YUL to SFO are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
Two airlines offer direct flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.).
  • Air Canada operates 14 direct flights from YUL to SFO every week.
  • United operates 7 direct flights from YUL to SFO every week.
How do I find cheap flights from Montreal, QC (YUL) to San Francisco, CA (SFO)?
To find a cheap flight from Montreal, QC (YUL) to San Francisco, CA (SFO), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
The earliest flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) typically departs around 5:00 AM. This service is operated by Air Canada. This is a seasonal service, active in January, February, June, July, August, September, October, November, and December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
A non-stop flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) typically takes around 6 hours 18 minutes. This route covers a distance of approximately 4076 kilometres. If you opt for a flight with one stop, your journey will usually be longer, taking about 9 hours 30 minutes. Flights with two or more stops generally take around 13 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Montreal, QC (YUL) to San Francisco, CA (SFO)?
Select the "Business class" and "First class" filters when looking for Montreal, QC (YUL) to San Francisco, CA (SFO) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight with Expedia?
It's easy to earn miles on a Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Francisco, CA (SFO) from Montreal, QC (YUL)?
If you're planning to travel to San Francisco from Pierre Elliott Trudeau Intl. (YUL), you can fly directly into San Francisco Intl. (SFO). Some flights may connect through major hubs like Pearson Intl. (YYZ), O'Hare Intl. (ORD), or Calgary Intl. (YYC) before reaching San Francisco. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) at the last minute?
Typically, booking a last minute flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight and hotel package?
Securing a Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Montreal, QC (YUL) to San Francisco, CA (SFO)?
If you booked your Montreal, QC (YUL) to San Francisco, CA (SFO) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Pierre Elliott Trudeau Intl.
Destination airport
San Francisco Intl.
Airlines serving
Air Canada, Porter Airlines, WestJet
Return price
£294
Distance
4052 km
Average flight time
3 hours 12 mins

Book with confidence

Compare flights from Montreal to San Francisco easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Montreal to San Francisco. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to San Francisco Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Pierre Elliott Trudeau Intl. to San Francisco Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Pierre Elliott Trudeau Intl. (YUL) to San Francisco Intl. (SFO)

The easiest way to view the best deals on flights from Montreal to San Francisco today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Pierre Elliott Trudeau Intl. to San Francisco Intl. start at just £295 and range up to £383.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Montreal and San Francisco
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Montreal to San Francisco flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Pierre Elliott Trudeau Intl. to San Francisco Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Montreal to San Francisco easily and book with confidence

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*Available to Expedia members.