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Cheap flights from Montreal to San Francisco from $196

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 1/19. 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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Cheap round-trip flights

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Multiple Airlines Logo
6:45 am - 8:03 pmYUL-SFO
16h 18m2 stops
Multiple Airlines Logo
10:15 am - 4:27 pmSFO-YUL
27h 12m1 stop
$332Multiple Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Multiple Airlines Logo
6:45 am - 12:40 pmYUL-SFO
8h 55m1 stop
Multiple Airlines Logo
10:15 am - 4:27 pmSFO-YUL
27h 12m1 stop
$344Multiple Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Multiple Airlines Logo
7:30 pm - 12:10 pmYUL-SFO
19h 40m1 stop
Multiple Airlines Logo
6:45 pm - 4:27 pmSFO-YUL
18h 42m1 stop
$352Multiple Airlines
Find Deal
Thu, Apr 2 - Mon, Apr 20
WestJet Logo
4:15 pm - 12:10 pmYUL-SFO
22h 55m1 stop
WestJet Logo
12:50 pm - 12:42 amSFO-YUL
8h 52m1 stop
$361WestJet
Find Deal
Mon, Apr 20 - Sun, Apr 26
Porter Airlines Logo
6:45 am - 12:40 pmYUL-SFO
8h 55m1 stop
Porter Airlines Logo
1:40 pm - 12:35 amSFO-YUL
7h 55m1 stop
$367Porter Airlines
Find Deal
Thu, Nov 20 - Wed, Nov 26
Porter Airlines Logo
6:45 am - 12:40 pmYUL-SFO
8h 55m1 stop
Porter Airlines Logo
1:40 pm - 12:35 amSFO-YUL
7h 55m1 stop
$368Porter Airlines
Find Deal
Thu, Nov 20 - Wed, Nov 26
Porter Airlines Logo
6:45 am - 12:40 pmYUL-SFO
8h 55m1 stop
Porter Airlines Logo
1:40 pm - 12:35 amSFO-YUL
7h 55m1 stop
$369Porter Airlines
Find Deal
Thu, Nov 20 - Wed, Nov 26
WestJet Logo
7:30 pm - 12:12 pmYUL-SFO
19h 42m1 stop
WestJet Logo
1:00 pm - 7:05 amSFO-YUL
15h 05m1 stop
$370WestJet
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Wed, Jan 14 - Sun, Jan 18
Air Canada Logo
5:50 pm - 9:22 pmYUL-SFO
6h 32mnonstop
Air Canada Logo
8:25 am - 4:49 pmSFO-YUL
5h 24mnonstop
$373Air Canada
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Thu, Nov 20 - Wed, Nov 26
Air Canada Logo
7:30 am - 3:35 pmYUL-SFO
11h 05m1 stop
Air Canada Logo
8:25 am - 4:49 pmSFO-YUL
5h 24mnonstop
$378Air Canada
Find Deal
Thu, Nov 20 - Wed, Nov 26

WestJet flights from Montreal to San Francisco

Our best WestJet deals on Montreal to San Francisco flight tickets
WestJet
Apr 20
YUL4:15 pmMontreal Pierre Elliott Trudeau Intl
22h 55m
1 stop
SFO12:10 pmSan Francisco
Apr 26
SFO12:50 pmSan Francisco
8h 52m
1 stop
YUL12:42 amMontreal Pierre Elliott Trudeau Intl
$361
Find similar
WestJet
Jan 14
YUL7:30 pmMontreal Pierre Elliott Trudeau Intl
19h 42m
1 stop
SFO12:12 pmSan Francisco
Jan 18
SFO1:00 pmSan Francisco
15h 05m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
$370
Find similar
WestJet
Mar 12
YUL7:30 pmMontreal Pierre Elliott Trudeau Intl
19h 40m
1 stop
SFO12:10 pmSan Francisco
Mar 15
SFO1:00 pmSan Francisco
23h 13m
1 stop
YUL3:13 pmMontreal Pierre Elliott Trudeau Intl
$371
Find similar

Porter Airlines flights from Montreal to San Francisco

Our best Porter Airlines deals on Montreal to San Francisco flight tickets
Porter Airlines
Nov 20
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
8h 55m
1 stop
SFO12:40 pmSan Francisco
Nov 26
SFO1:40 pmSan Francisco
7h 55m
1 stop
YUL12:35 amMontreal Pierre Elliott Trudeau Intl
$367
Find similar
Porter Airlines
Nov 20
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
8h 55m
1 stop
SFO12:40 pmSan Francisco
Nov 26
SFO1:40 pmSan Francisco
7h 55m
1 stop
YUL12:35 amMontreal Pierre Elliott Trudeau Intl
$368
Find similar
Porter Airlines
Nov 20
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
8h 55m
1 stop
SFO12:40 pmSan Francisco
Nov 26
SFO1:40 pmSan Francisco
7h 55m
1 stop
YUL12:35 amMontreal Pierre Elliott Trudeau Intl
$369
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 October 30, 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

Thu 12/4

6:45 am-8:03 pm

2 stops16h 18m

San Francisco

Thu 12/11

10:15 am-4:27 pm

1 stop27h 12m

$332

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 12/4

6:45 am-12:40 pm

1 stop8h 55m

San Francisco

Thu 12/11

10:15 am-4:27 pm

1 stop27h 12m

$344

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 4/2

7:30 pm-12:10 pm

1 stop19h 40m

San Francisco

Mon 4/20

6:45 pm-4:27 pm

1 stop18h 42m

$352

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 4/20

4:15 pm-12:10 pm

1 stop22h 55m

San Francisco

Sun 4/26

12:50 pm-12:42 am

1 stop8h 52m

$361

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 11/20

6:45 am-12:40 pm

1 stop8h 55m

San Francisco

Wed 11/26

1:40 pm-12:35 am

1 stop7h 55m

$367

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 11/20

6:45 am-12:40 pm

1 stop8h 55m

San Francisco

Wed 11/26

1:40 pm-12:35 am

1 stop7h 55m

$368

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 11/20

6:45 am-12:40 pm

1 stop8h 55m

San Francisco

Wed 11/26

1:40 pm-12:35 am

1 stop7h 55m

$369

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 1/14

7:30 pm-12:12 pm

1 stop19h 42m

San Francisco

Sun 1/18

1:00 pm-7:05 am

1 stop15h 05m

$370

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 11/20

5:50 pm-9:22 pm

Nonstop6h 32m

San Francisco

Wed 11/26

8:25 am-4:49 pm

Nonstop5h 24m

$373

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 11/20

7:30 am-3:35 pm

1 stop11h 05m

San Francisco

Wed 11/26

8:25 am-4:49 pm

Nonstop5h 24m

$378

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 typical price of a round-trip flight between Montreal and San Francisco?

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 May is also cheap. Prices for this month can be found on momondo for an average of $367.

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 $437. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $850.

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 at noon. Our users have found flights to San Francisco at noon for as low as $421. Flights in the afternoon are often more expensive with an average ticket price of $710.

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 $413 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 23% 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 October 2025, prices for Montreal to San Francisco flights are approximately 3% 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

$284

Fastest flight time

6h 21m

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 $284. The best round-trip flight deal from Montreal to San Francisco found on momondo in the last 72 hours is $453.
The fastest flight from Montreal to San Francisco takes 6h 21m
Direct flights go from Montreal to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
Search flight deals

  • 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 32m.

  • 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 $253Free CancellationRating
8.0
384 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $289Free CancellationRating
7.1
10,377 reviews
Search Air Canada flights
United AirlinesPriceFrom $341Free CancellationRating
7.4
8,998 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 $341. Generally, United Airlines has 4 flights on this route every week with an average price of $526. 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 $289 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around $421. Air Canada operates 4 flights to San Francisco from Montreal in an average week. Users have rated it 7.1/10 across 10,377 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
Sonoma
Bodega Bay
Roseville
Calistoga
Hayward
Big Sur
Santa Clara
Daly City
Fremont
Berkeley
Vallejo
Walnut Creek
Half Moon Bay
Salinas
Turlock
Livermore
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.
Start using Trips
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