Cheap flights from Montreal to San Francisco from $210

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 6/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Montreal to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Porter Airlines Logo
6:45 am - 12:45 pm
YUL
-
SFO
9h 00m
1 stop
Porter Airlines Logo
1:45 pm - 12:35 am
SFO
-
YUL
7h 50m
1 stop
$317Porter Airlines
Fri, Apr 10 - Mon, Apr 13
Porter Airlines Logo
6:45 am - 12:20 pm
YUL
-
SFO
8h 35m
1 stop
Porter Airlines Logo
1:20 pm - 12:37 am
SFO
-
YUL
8h 17m
1 stop
$318Porter Airlines
Thu, Jun 4 - Sun, Jun 7
Air Canada Logo
6:00 pm - 9:21 pm
YUL
-
SFO
6h 21mnonstop
Air Canada Logo
8:10 am - 4:47 pm
SFO
-
YUL
5h 37mnonstop
$325Air Canada
Wed, Apr 1 - Tue, Apr 21
Air Canada Logo
6:00 pm - 9:22 pm
YUL
-
SFO
6h 22mnonstop
Air Canada Logo
11:55 am - 11:21 pm
SFO
-
YUL
8h 26m
1 stop
$326Air Canada
Mon, Mar 30 - Tue, Apr 14
Air Canada Logo
7:30 am - 3:32 pm
YUL
-
SFO
11h 02m
1 stop
Air Canada Logo
8:10 am - 4:47 pm
SFO
-
YUL
5h 37mnonstop
$329Air Canada
Fri, Apr 10 - Mon, Apr 13
Air Canada Logo
6:00 pm - 9:21 pm
YUL
-
SFO
6h 21mnonstop
Air Canada Logo
7:25 am - 7:12 pm
SFO
-
YUL
8h 47m
1 stop
$331Air Canada
Wed, Apr 1 - Sun, Apr 19
Porter Airlines Logo
6:45 am - 12:42 pm
YUL
-
SFO
8h 57m
1 stop
Porter Airlines Logo
1:45 pm - 12:35 am
SFO
-
YUL
7h 50m
1 stop
$333Porter Airlines
Wed, Mar 18 - Wed, Apr 1
Porter Airlines Logo
6:45 am - 12:20 pm
YUL
-
SFO
8h 35m
1 stop
Porter Airlines Logo
1:20 pm - 12:37 am
SFO
-
YUL
8h 17m
1 stop
$334Porter Airlines
Sun, May 31 - Fri, Jun 5
Porter Airlines Logo
6:45 am - 12:45 pm
YUL
-
SFO
9h 00m
1 stop
Porter Airlines Logo
1:45 pm - 12:35 am
SFO
-
YUL
7h 50m
1 stop
$335Porter Airlines
Thu, Apr 9 - Mon, Apr 13
Porter Airlines Logo
6:45 am - 12:45 pm
YUL
-
SFO
9h 00m
1 stop
Porter Airlines Logo
1:45 pm - 12:35 am
SFO
-
YUL
7h 50m
1 stop
$337Porter Airlines
Fri, Apr 10 - Mon, Apr 13

Porter Airlines flights from Montreal to San Francisco

Our best Porter Airlines deals on Montreal to San Francisco flight tickets
Porter Airlines
Jun 4
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
8h 35m
1 stop
SFO12:20 pmSan Francisco
Jun 7
SFO1:20 pmSan Francisco
8h 17m
1 stop
YUL12:37 amMontreal Pierre Elliott Trudeau Intl
$318
Porter Airlines
May 31
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
8h 35m
1 stop
SFO12:20 pmSan Francisco
Jun 5
SFO1:20 pmSan Francisco
8h 17m
1 stop
YUL12:37 amMontreal Pierre Elliott Trudeau Intl
$334
Porter Airlines
Mar 18
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
8h 57m
1 stop
SFO12:42 pmSan Francisco
Apr 1
SFO1:45 pmSan Francisco
7h 50m
1 stop
YUL12:35 amMontreal Pierre Elliott Trudeau Intl
$335

Air Canada flights from Montreal to San Francisco

Our best Air Canada deals on Montreal to San Francisco flight tickets
Air Canada
Apr 1
YUL6:00 pmMontreal Pierre Elliott Trudeau Intl
6h 21m
SFO9:21 pmSan Francisco
Apr 21
SFO8:10 amSan Francisco
5h 37m
YUL4:47 pmMontreal Pierre Elliott Trudeau Intl
$325
Air Canada
Apr 1
YUL6:00 pmMontreal Pierre Elliott Trudeau Intl
6h 21m
SFO9:21 pmSan Francisco
Apr 19
SFO7:25 amSan Francisco
8h 47m
1 stop
YUL7:12 pmMontreal Pierre Elliott Trudeau Intl
$331
Air Canada
Apr 1
YUL6:00 pmMontreal Pierre Elliott Trudeau Intl
6h 21m
SFO9:21 pmSan Francisco
Apr 18
SFO8:30 amSan Francisco
7h 50m
1 stop
YUL7:20 pmMontreal Pierre Elliott Trudeau Intl
$339

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 February 4, 2026.
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

Fri 4/10

6:45 am-12:45 pm

1 stop9h 00m

San Francisco

Mon 4/13

1:45 pm-12:35 am

1 stop7h 50m

$317

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 6/4

6:45 am-12:20 pm

1 stop8h 35m

San Francisco

Sun 6/7

1:20 pm-12:37 am

1 stop8h 17m

$318

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 4/1

6:00 pm-9:21 pm

Nonstop6h 21m

San Francisco

Tue 4/21

8:10 am-4:47 pm

Nonstop5h 37m

$325

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 3/30

6:00 pm-9:22 pm

Nonstop6h 22m

San Francisco

Tue 4/14

11:55 am-11:21 pm

1 stop8h 26m

$326

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

7:30 am-3:32 pm

1 stop11h 02m

San Francisco

Mon 4/13

8:10 am-4:47 pm

Nonstop5h 37m

$329

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 4/1

6:00 pm-9:21 pm

Nonstop6h 21m

San Francisco

Sun 4/19

7:25 am-7:12 pm

1 stop8h 47m

$331

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 3/18

6:45 am-12:42 pm

1 stop8h 57m

San Francisco

Wed 4/1

1:45 pm-12:35 am

1 stop7h 50m

$333

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sun 5/31

6:45 am-12:20 pm

1 stop8h 35m

San Francisco

Fri 6/5

1:20 pm-12:37 am

1 stop8h 17m

$334

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

6:45 am-12:45 pm

1 stop9h 00m

San Francisco

Mon 4/13

1:45 pm-12:35 am

1 stop7h 50m

$335

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

6:45 am-12:45 pm

1 stop9h 00m

San Francisco

Mon 4/13

1:45 pm-12:35 am

1 stop7h 50m

$337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 May, then flying in February 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 $417. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $867.

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 morning. Our users have found flights to San Francisco in the morning for as low as $445. Flights in the afternoon are often more expensive with an average ticket price of $689.

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 $421 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 $369 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?

No. A direct flight is the cheapest option for a flight between Montreal to San Francisco.

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

As of February 2026, prices for Montreal to San Francisco flights are approximately 9% 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

$346

Fastest flight time

6h 11m

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 $346. The best round-trip flight deal from Montreal to San Francisco found on momondo in the last 72 hours is $345.
The fastest flight from Montreal to San Francisco takes 6h 11m
Direct flights go from Montreal to San Francisco every day.
There is 1 airport in San Francisco. From Montreal there are direct flights to San Francisco (SFO).
  • 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 11m.

  • 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 $188Free CancellationRating
7.9
412 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $267Free CancellationRating
7.1
10,688 reviews
Search Air Canada flights
United AirlinesPriceFrom $351Free CancellationRating
7.4
9,236 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 7 flights on this route every week with an average price of $567. 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 $267 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around $421. Air Canada operates 6 flights to San Francisco from Montreal in an average week. Users have rated it 7.1/10 across 10,688 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
Hayward
Calistoga
Santa Clara
Walnut Creek
Berkeley
Big Sur
Fremont
Half Moon Bay
Daly City
Salinas
Vallejo
Sunnyvale
Livermore
Turlock

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 3/6
Fri 3/13

Find better results for your trip to the United States