£148 Cheap Flights from Montreal (YUL) to San Francisco (SFO)

View £148 flight on Fri, 29 May 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at £148 for one-way flights and £286 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Thu, 18 Jun - Mon, 22 Jun
YUL
Montreal
SFO
San Francisco
£286 Return, found 3 days ago
£286
Return
found 3 days ago
Select WestJet flight, departing Thu, 18 Jun from Montreal to San Francisco, returning Mon, 22 Jun, priced at £286 found 3 days ago
WestJet
Thu, 18 Jun - Mon, 22 Jun
YUL
Montreal
SFO
San Francisco
£290 Return, found 3 days ago
£290
Return
found 3 days ago
Select WestJet flight, departing Thu, 18 Jun from Montreal to San Francisco, returning Mon, 22 Jun, priced at £290 found 3 days ago
Air Canada
Thu, 18 Jun - Mon, 22 Jun
YUL
Montreal
SFO
San Francisco
£308 Return, found 3 days ago
£308
Return
found 3 days ago
Select Air Canada flight, departing Thu, 18 Jun from Montreal to San Francisco, returning Mon, 22 Jun, priced at £308 found 3 days ago
Air Canada
Thu, 18 Jun - Mon, 22 Jun
YUL
Montreal
SFO
San Francisco
£313 Return, found 3 days ago
£313
Return
found 3 days ago
Select Air Canada flight, departing Thu, 18 Jun from Montreal to San Francisco, returning Mon, 22 Jun, priced at £313 found 3 days ago
WestJet
Thu, 18 Jun - Mon, 22 Jun
YUL
Montreal
SFO
San Francisco
£314 Return, found 3 days ago
£314
Return
found 3 days ago
Select WestJet flight, departing Thu, 18 Jun from Montreal to San Francisco, returning Mon, 22 Jun, priced at £314 found 3 days ago
Air Canada
Thu, 18 Jun - Mon, 22 Jun
YUL
Montreal
SFO
San Francisco
£315 Return, found 3 days ago
£315
Return
found 3 days ago
Select Air Canada flight, departing Thu, 18 Jun from Montreal to San Francisco, returning Mon, 22 Jun, priced at £315 found 3 days ago
Porter Airlines
Thu, 6 Aug - Mon, 10 Aug
YUL
Montreal
SFO
San Francisco
£317 Return, found 1 day ago
£317
Return
found 1 day ago
Select Porter Airlines flight, departing Thu, 6 Aug from Montreal to San Francisco, returning Mon, 10 Aug, priced at £317 found 1 day ago
Air Canada
Thu, 18 Jun - Mon, 22 Jun
YUL
Montreal
SFO
San Francisco
£319 Return, found 3 days ago
£319
Return
found 3 days ago
Select Air Canada flight, departing Thu, 18 Jun from Montreal to San Francisco, returning Mon, 22 Jun, priced at £319 found 3 days ago
United
Tue, 29 Sept - Sun, 4 Oct
YUL
Montreal
SFO
San Francisco
£322 Return, found 4 days ago
£322
Return
found 4 days ago
Select United flight, departing Tue, 29 Sept from Montreal to San Francisco, returning Sun, 4 Oct, priced at £322 found 4 days ago
Delta
Mon, 10 Aug - Thu, 13 Aug
YUL
Montreal
SFO
San Francisco
£346 Return, found 16 hours ago
£346
Return
found 16 hours ago
Select Delta flight, departing Mon, 10 Aug from Montreal to San Francisco, returning Thu, 13 Aug, priced at £346 found 16 hours ago

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 £356
SFO
San Francisco Intl.
CheapestClosest
Average driving time to city centre19 min
Flights from £356

Find the cheapest month to fly from Montreal (YUL) to San Francisco (SFO)

April is typically the cheapest month to fly

From £225 - £347 per traveller.

Frequently asked questions

How much does a flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) cost?
One-way flights typically cost between £351 and £1,465 and return flights often range between £630 and £2,727. 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 the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
Which airlines fly direct from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
Enter YUL to SFO and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
To find a cheap flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.), 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 airline to fly with from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
The best airline to fly with from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) will differ from traveller to traveller. If you like to fly early, AC offers early morning flights. If price is the most important factor, AC typically offers the lowest fares. AC offers the most daily flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
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.
How many flights per day from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
There are approximately 2 nonstop flights per day from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.). For even more choice, look at flights that include layovers, as there are around 68 connecting flights per day. Some common connection points include Pearson Intl. (YYZ), O'Hare Intl. (ORD), and Philadelphia Intl. (PHL).
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 at approximately 5:00 AM local time, operated by Air Canada. This service operates year-round, active in January, February, April, May, June, July, August, September, October, November, and December. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
You'll find the most flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) on a Friday, with around 54 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Air Canada, United Airlines, and Delta Air Lines. Flight options are fairly consistent throughout the week, with Fridays offering slightly more flights.
What are the most popular departure times for flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
The most popular departure times for flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) are in the early morning, from 6am to 9am. Approximately 34% of passengers prefer this time window. Many major carriers, including Air Canada and United Airlines, offer flights during this window. This timing works well because it allows you to get an early start on your travel day and arrive in San Francisco with plenty of time to settle in.
How long does it take to fly from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
Direct flights from YUL to SFO usually take about 6 hours 20 minutes, traveling roughly 2,533 miles. If you opt for a connecting flight, expect to add around 3 hours 10 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
Select the "Business class" and "First class" filters when looking for YUL to SFO flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How much is a business class flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
A direct, return business class ticket from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) typically costs between £2,723 - £5,626. A non-stop, one-way business class flight is usually around £2,726 - £2,974. You may also be able to find a cheaper business class journey between Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Anaa (AAA) (AAA) to Toronto, ON (YYZ-Pearson Intl.) (YYZ) if you opt for a connecting flight.
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 from Pierre Elliott Trudeau Intl. (YUL)?
From Pierre Elliott Trudeau Intl. (YUL), you can fly directly into San Francisco Intl. (SFO) to reach San Francisco. Some flights may connect through major hubs like Pearson Intl. (YYZ), O'Hare Intl. (ORD), 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-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
If you booked your Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to San Francisco, CA (SFO-San Francisco Intl.) 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, American Airlines, Delta, Porter Airlines, United, WestJet
Return price
£285
Distance
4052 km
Average flight time
3 hours 18 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 £286 and range up to £346.  

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 June, 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

Explore a world of travel with Expedia

*Available to Expedia members.