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Cheap flights from Montreal to San Francisco from $167

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to San Francisco departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Montreal to San Francisco

Cheap round-trip flights

Air Canada Logo
8:05 am - 11:11 amYUL-SFO
6h 06mnonstop
Air Canada Logo
11:40 am - 8:05 pmSFO-YUL
5h 25mnonstop
$289Air Canada
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Sat, Sep 20 - Tue, Sep 30
Logo
6:45 am - 12:23 pmYUL-SFO
8h 38m1 stop
Logo
10:15 am - 4:27 pmSFO-YUL
27h 12m1 stop
$293
Find Deal
Sat, Oct 25 - Tue, Nov 4
Air Canada Logo
8:05 am - 11:11 amYUL-SFO
6h 06mnonstop
Air Canada Logo
11:35 am - 12:36 amSFO-YUL
10h 01m1 stop
$295Air Canada
Find Deal
Sat, Sep 20 - Tue, Sep 30
Logo
6:45 am - 12:23 pmYUL-SFO
8h 38m1 stop
Logo
10:15 am - 5:27 pmSFO-YUL
28h 12m1 stop
$297
Find Deal
Sat, Oct 25 - Sat, Nov 1
United Airlines Logo
6:30 pm - 9:40 pmYUL-SFO
6h 10mnonstop
United Airlines Logo
11:45 pm - 8:16 amSFO-YUL
5h 31mnonstop
$331United Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 31
United Airlines Logo
6:30 pm - 9:40 pmYUL-SFO
6h 10mnonstop
United Airlines Logo
6:30 am - 9:29 pmSFO-YUL
11h 59m1 stop
$332United Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 31
American Airlines Logo
4:05 pm - 11:18 pmYUL-SFO
10h 13m1 stop
American Airlines Logo
6:10 am - 4:42 pmSFO-YUL
7h 32m1 stop
$338American Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 31
American Airlines Logo
12:30 pm - 8:01 pmYUL-SFO
10h 31m2 stops
American Airlines Logo
6:10 am - 4:42 pmSFO-YUL
7h 32m1 stop
$351American Airlines
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Fri, Aug 22 - Sun, Aug 31
WestJet Logo
6:45 am - 5:15 pmYUL-SFO
13h 30m2 stops
WestJet Logo
7:30 am - 12:27 amSFO-YUL
13h 57m2 stops
$356WestJet
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Wed, Aug 27 - Wed, Sep 3
WestJet Logo
6:45 am - 5:14 pmYUL-SFO
13h 29m2 stops
WestJet Logo
7:30 am - 12:27 amSFO-YUL
13h 57m2 stops
$362WestJet
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Fri, Sep 19 - Sun, Sep 21

American Airlines flights from Montreal to San Francisco

Our best American Airlines deals on Montreal to San Francisco flight tickets
American Airlines
Aug 22
YUL4:05 pmMontreal Pierre Elliott Trudeau Intl
10h 13m
1 stop
SFO11:18 pmSan Francisco
Aug 31
SFO6:10 amSan Francisco
7h 32m
1 stop
YUL4:42 pmMontreal Pierre Elliott Trudeau Intl
$338
Find similar
American Airlines
Aug 22
YUL12:30 pmMontreal Pierre Elliott Trudeau Intl
10h 31m
2 stops
SFO8:01 pmSan Francisco
Aug 31
SFO6:10 amSan Francisco
7h 32m
1 stop
YUL4:42 pmMontreal Pierre Elliott Trudeau Intl
$351
Find similar
American Airlines
Aug 23
YUL3:44 pmMontreal Pierre Elliott Trudeau Intl
19h 54m
1 stop
SFO8:38 amSan Francisco
Sep 2
SFO12:47 amSan Francisco
7h 58m
1 stop
YUL11:45 amMontreal Pierre Elliott Trudeau Intl
$359
Find similar

United Airlines flights from Montreal to San Francisco

Our best United Airlines deals on Montreal to San Francisco flight tickets
United Airlines
Aug 22
YUL6:30 pmMontreal Pierre Elliott Trudeau Intl
6h 10m
SFO9:40 pmSan Francisco
Aug 31
SFO11:45 pmSan Francisco
5h 31m
YUL8:16 amMontreal Pierre Elliott Trudeau Intl
$331
Find similar
United Airlines
Aug 22
YUL6:30 pmMontreal Pierre Elliott Trudeau Intl
6h 10m
SFO9:40 pmSan Francisco
Aug 31
SFO11:45 pmSan Francisco
5h 31m
YUL8:16 amMontreal Pierre Elliott Trudeau Intl
$332
Find similar
United Airlines
Aug 20
YUL6:30 pmMontreal Pierre Elliott Trudeau Intl
6h 10m
SFO9:40 pmSan Francisco
Aug 24
SFO11:45 pmSan Francisco
5h 31m
YUL8:16 amMontreal Pierre Elliott Trudeau Intl
$334
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Montreal 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Montreal to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 9/20

8:05 am-11:11 am

Nonstop6h 06m

San Francisco

Tue 9/30

11:40 am-8:05 pm

Nonstop5h 25m

$289

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 10/25

6:45 am-12:23 pm

1 stop8h 38m

San Francisco

Tue 11/4

10:15 am-4:27 pm

1 stop27h 12m

$293

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 9/20

8:05 am-11:11 am

Nonstop6h 06m

San Francisco

Tue 9/30

11:35 am-12:36 am

1 stop10h 01m

$295

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 10/25

6:45 am-12:23 pm

1 stop8h 38m

San Francisco

Sat 11/1

10:15 am-5:27 pm

1 stop28h 12m

$297

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 8/22

6:30 pm-9:40 pm

Nonstop6h 10m

San Francisco

Sun 8/31

11:45 pm-8:16 am

Nonstop5h 31m

$331

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 8/22

6:30 pm-9:40 pm

Nonstop6h 10m

San Francisco

Sun 8/31

6:30 am-9:29 pm

1 stop11h 59m

$332

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 8/22

4:05 pm-11:18 pm

1 stop10h 13m

San Francisco

Sun 8/31

6:10 am-4:42 pm

1 stop7h 32m

$338

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 8/22

12:30 pm-8:01 pm

2 stops10h 31m

San Francisco

Sun 8/31

6:10 am-4:42 pm

1 stop7h 32m

$351

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 8/27

6:45 am-5:15 pm

2 stops13h 30m

San Francisco

Wed 9/3

7:30 am-12:27 am

2 stops13h 57m

$356

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 9/19

6:45 am-5:14 pm

2 stops13h 29m

San Francisco

Sun 9/21

7:30 am-12:27 am

2 stops13h 57m

$362

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Montreal to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $372.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Montreal to San Francisco is on a Friday when prices can be found for as low as $380. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $833.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Montreal to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $248. Flights in the afternoon are often more expensive with an average ticket price of $651.

What is the cheapest Montreal to San Francisco flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to San Francisco for the best Montreal - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $418 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Montreal for as low as $370 on momondo.

What cabin class options are available on Montreal to San Francisco flights?

There are 4 cabin classes available to choose from on Montreal to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montreal to San Francisco flights?

You could potentially save up to 15% on your flight if you consider stops on a Montreal to San Francisco flight.

How have Montreal to San Francisco flight prices changed over time?

As of July 2025, prices for Montreal to San Francisco flights are approximately 15% cheaper when compared to flights at the same time last year.

When to book flights from Montreal to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal to San Francisco (YMQ to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to San Francisco

Best Price Found

$167

Fastest flight time

6h 06m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Montreal in the past 72 hours is $167. The best round-trip flight deal from Montreal to San Francisco found on momondo in the last 72 hours is $289.
The fastest flight from Montreal to San Francisco takes 6h 06m
Direct flights go from Montreal to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
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  • How far is Montreal to San Francisco by plane?

    The distance between Montreal and San Francisco is about 2535.4 mi. By plane, this route typically takes 6h 06m.

  • When did momondo last update prices for flights from Montreal to San Francisco Airport?

    Prices for flights from Montreal to San Francisco Airport are updated daily.

  • How many operators does momondo search for flights from Montreal to San Francisco Airport?

  • How old do you have to be to fly from Montreal to San Francisco Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Montreal to San Francisco?

  • What is the most popular airline from Montreal to San Francisco?

Best airlines flying from Montreal to San Francisco

Compare and see reviews for airlines that fly from Montreal to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom $231Free CancellationRating
8.0
318 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $314Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
United AirlinesPriceFrom $351Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

  • United Airlines Flights From Montreal to San Francisco

    The lowest priced United Airlines flight from Montreal to San Francisco from the last 72 hours was $351. Generally, United Airlines has 18 flights on this route every week with an average price of $586. United Airlines is rated 7.4/10 by our users.

  • Air Canada Flights From Montreal to San Francisco

    Air Canada is also a popular choice for this route. Air Canada flight deals for Montreal to San Francisco start from as low as $314 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around $421. Air Canada operates 20 flights to San Francisco from Montreal in an average week. Users have rated it 7.1/10 across 9,851 reviews.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Calistoga
Hayward
Bodega Bay
Sonoma
Roseville
Santa Clara
Big Sur
Daly City
Berkeley
Walnut Creek
Fremont
Half Moon Bay
South San Francisco
Redwood City
Vallejo
Sunnyvale
Pacific Grove

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to San Francisco?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montreal to San Francisco. momondo saves you time and could save you money on your trip.

Can I find flights from Montreal to San Francisco with flexible booking policies on momondo?

All flight searches from Montreal to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Montreal to San Francisco?

momondo provides multiple filters to help you find the best flight to San Francisco from Montreal. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Montreal to San Francisco right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Montreal and alert you when they change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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