Which layover airport offers the lowest fares from Montreal to San Francisco?

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 413.

Which layover airport has the shortest travel time from Montreal to San Francisco?

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 8h 35m.

Which airlines fly to San Francisco?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Francisco from Montreal according to our data. Air Canada is the first choice among our users, with 57% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 5 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Montreal to San Francisco flights?

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Montreal and San Francisco?

Toronto (YYZ) was the most common stop: 86% of momondo users choosing one-stop flights on this route connected there.

Which layover airport has the shortest connection time from Montreal to San Francisco?

Detroit (DTW) has the shortest average layover time for this route: 1h 21m.

What is the most punctual flight time for Montreal to San Francisco flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What is the cheapest airline that flies from Montreal to San Francisco?

WestJet, Porter Airlines, and American Airlines are the most popular carriers operating from Montreal to San Francisco

How often are flights from Montreal to San Francisco delayed?

Historically, on average around 18% of flights between Montreal and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

How many flights depart from Montreal to San Francisco on average per week?

28 flights are operational weekly from Montreal to San Francisco as of January 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

How many flights depart from Montreal to San Francisco on average per day?

4 flights are operational daily from Montreal to San Francisco as of January 2026. The most popular departure time for this route is 5:00p.m., with 100% of flights per day taking off in the afternoon.

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?

There are 5 operators available for flights from Montreal to San Francisco Airport as of January 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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.

C$ 313 Cheap Flights from Montreal to San Francisco in 2026

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6:00 p.m. - 7:31 a.m.

YUL

SFO

16h 31m1 stop

12:43 a.m. - 5:55 p.m.

SFO

YUL

14h 12m2 stops

C$ 487United Airlines

Mon, 2 Mar - Tue, 3 Mar

5:50 p.m. - 9:22 p.m.

YUL

SFO

6h 32mdirect

8:25 a.m. - 4:49 p.m.

SFO

YUL

5h 24mdirect

C$ 488United Airlines

Sat, 24 Jan - Tue, 27 Jan

7:30 p.m. - 12:10 p.m.

YUL

SFO

19h 40m1 stop

10:15 a.m. - 7:05 a.m.

SFO

YUL

17h 50m2 stops

C$ 490Multiple Airlines

Mon, 2 Mar - Sun, 8 Mar

7:30 a.m. - 9:39 p.m.

YUL

SFO

17h 09m1 stop

2:30 p.m. - 8:16 a.m.

SFO

YUL

14h 46m1 stop

C$ 491Air Canada

Fri, 27 Feb - Fri, 6 Mar

6:00 p.m. - 9:21 p.m.

YUL

SFO

6h 21mdirect

8:10 a.m. - 4:47 p.m.

SFO

YUL

5h 37mdirect

C$ 492Air Canada

Thu, 16 Apr - Mon, 20 Apr

5:30 p.m. - 11:54 a.m.

YUL

SFO

21h 24m1 stop

7:30 a.m. - 12:40 a.m.

SFO

YUL

14h 10m2 stops

C$ 494WestJet

Mon, 6 Jul - Wed, 22 Jul

6:00 p.m. - 7:49 a.m.

YUL

SFO

16h 49m1 stop

8:25 a.m. - 4:49 p.m.

SFO

YUL

5h 24mdirect

C$ 495United Airlines

Sun, 25 Jan - Thu, 5 Feb

5:50 p.m. - 9:22 p.m.

YUL

SFO

6h 32mdirect

8:25 a.m. - 4:49 p.m.

SFO

YUL

5h 24mdirect

C$ 497Air Canada

Sun, 1 Feb - Thu, 5 Feb

5:30 p.m. - 1:57 p.m.

YUL

SFO

23h 27m2 stops

2:45 p.m. - 12:42 a.m.

SFO

YUL

30h 57m2 stops

C$ 498WestJet

Mon, 22 Jun - Sat, 27 Jun

5:25 p.m. - 11:18 p.m.

YUL

SFO

8h 53m1 stop

11:59 p.m. - 1:22 p.m.

SFO

YUL

10h 23m2 stops

C$ 499Air Canada

Wed, 25 Feb - Mon, 9 Mar

United Airlines flights from Montreal to San Francisco

Our best United Airlines deals on Montreal to San Francisco flight tickets

United Airlines

2 Mar

YUL6:00 p.m.Montreal Pierre Elliott Trudeau Intl

16h 31m

1 stop

SFO7:31 a.m.San Francisco

3 Mar

SFO12:43 a.m.San Francisco

14h 12m

2 stops

YUL5:55 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 487

United Airlines

24 Jan

YUL5:50 p.m.Montreal Pierre Elliott Trudeau Intl

6h 32m

SFO9:22 p.m.San Francisco

27 Jan

SFO8:25 a.m.San Francisco

5h 24m

YUL4:49 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 488

United Airlines

25 Jan

YUL6:00 p.m.Montreal Pierre Elliott Trudeau Intl

16h 49m

1 stop

SFO7:49 a.m.San Francisco

5 Feb

SFO8:25 a.m.San Francisco

5h 24m

YUL4:49 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 495

Air Canada flights from Montreal to San Francisco

Our best Air Canada deals on Montreal to San Francisco flight tickets

Air Canada

27 Feb

YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl

17h 09m

1 stop

SFO9:39 p.m.San Francisco

6 Mar

SFO2:30 p.m.San Francisco

14h 46m

1 stop

YUL8:16 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 491

Air Canada

16 Apr

YUL6:00 p.m.Montreal Pierre Elliott Trudeau Intl

6h 21m

SFO9:21 p.m.San Francisco

20 Apr

SFO8:10 a.m.San Francisco

5h 37m

YUL4:47 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 492

Air Canada

1 Feb

YUL5:50 p.m.Montreal Pierre Elliott Trudeau Intl

6h 32m

SFO9:22 p.m.San Francisco

5 Feb

SFO8:25 a.m.San Francisco

5h 24m

YUL4:49 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 497

Fly from

Fly to

Route

Depart

Return

Price

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 2/3

6:00 p.m.-7:31 a.m.

1 stop16h 31m

San Francisco

Tue 3/3

12:43 a.m.-5:55 p.m.

2 stops14h 12m

C$ 487

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 24/1

5:50 p.m.-9:22 p.m.

Nonstop6h 32m

San Francisco

Tue 27/1

8:25 a.m.-4:49 p.m.

Nonstop5h 24m

C$ 488

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 2/3

7:30 p.m.-12:10 p.m.

1 stop19h 40m

San Francisco

Sun 8/3

10:15 a.m.-7:05 a.m.

2 stops17h 50m

C$ 490

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 27/2

7:30 a.m.-9:39 p.m.

1 stop17h 09m

San Francisco

Fri 6/3

2:30 p.m.-8:16 a.m.

1 stop14h 46m

C$ 491

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 16/4

6:00 p.m.-9:21 p.m.

Nonstop6h 21m

San Francisco

Mon 20/4

8:10 a.m.-4:47 p.m.

Nonstop5h 37m

C$ 492

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 6/7

5:30 p.m.-11:54 a.m.

1 stop21h 24m

San Francisco

Wed 22/7

7:30 a.m.-12:40 a.m.

2 stops14h 10m

C$ 494

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

6:00 p.m.-7:49 a.m.

1 stop16h 49m

San Francisco

Thu 5/2

8:25 a.m.-4:49 p.m.

Nonstop5h 24m

C$ 495

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sun 1/2

5:50 p.m.-9:22 p.m.

Nonstop6h 32m

San Francisco

Thu 5/2

8:25 a.m.-4:49 p.m.

Nonstop5h 24m

C$ 497

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 22/6

5:30 p.m.-1:57 p.m.

2 stops23h 27m

San Francisco

Sat 27/6

2:45 p.m.-12:42 a.m.

2 stops30h 57m

C$ 498

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 25/2

5:25 p.m.-11:18 p.m.

1 stop8h 53m

San Francisco

Mon 9/3

11:59 p.m.-1:22 p.m.

2 stops10h 23m

C$ 499

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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

Prices

Airlines

Delays

Layovers

Other information

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?

The cheapest month to fly to San Francisco from Montreal is in February. Flight prices, which tend to average around C$ 511, are often lower during this time because this is during the off-season. The month of March is another great option to travel to San Francisco, with average flight prices from Montreal averaging around C$ 511.

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. Travellers who choose to depart for San Francisco on a Friday will often find tickets for as low as C$ 1,113. On the other hand, Saturday is the most expensive day to depart from Montreal because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,283.

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

Flying to San Francisco from Montreal in the morning is the least expensive time of day to depart. momondo users have found prices as low as C$ 864 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to San Francisco is in the afternoon when prices are around C$ 1,265.

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 C$ 583 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 C$ 505 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 16% 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 January 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	C$ 548
Fastest flight time	6h 12m
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 C$ 548. The best round-trip flight deal from Montreal to San Francisco found on momondo in the last 72 hours is C$ 986.

The fastest flight from Montreal to San Francisco takes 6h 12m

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).

Search flight deals

How far is Montreal to San Francisco by plane?
The distance between Montreal and San Francisco is about 4080.4 km. In terms of flight time, this usually takes a little over 6h 12m.
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?
There are 5 operators available for flights from Montreal to San Francisco Airport as of January 2026.
How old do you have to be to fly from Montreal to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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?
Based on momondo bookings for flights between Montreal and San Francisco, the leading plane model is Boeing 737 MAX 8, making up 85.91% of the total bookings. Other popular models include De Havilland (Bombardier) DHC-8-400 Dash 8Q with 3.64%, Boeing 737 MAX 9 with 2.73%, and Boeing 777-300ER with 1.14%.
What is the most popular airline from Montreal to San Francisco?
Based on momondo bookings for flights between Montreal and San Francisco, the leading airline is Air Canada, making up 56% of the total bookings. Other popular airlines include Porter Airlines with 20%, United Airlines with 19%, and WestJet with 5%.

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 Airlines	PriceFrom C$ 309	Free Cancellation	Rating 8.0 406 reviews	Search Porter Airlines flights
WestJet	PriceFrom C$ 335	Free Cancellation	Rating 7.2 3,235 reviews	Search WestJet flights
United Airlines	PriceFrom C$ 408	Free Cancellation	Rating 7.4 9,145 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 456	Free Cancellation	Rating 7.1 10,611 reviews	Search Air Canada flights
Delta	PriceFrom C$ 517	Free Cancellation	Rating 7.9 8,035 reviews	Search Delta flights

United Airlines Flights From Montreal to San Francisco
United Airlines operates around 7 flights from Montreal to San Francisco every week. The average price of these flights found in the last 72 hours has been C$ 631, but momondo users have found United Airlines deals from Montreal to San Francisco from as low as C$ 408 round-trip. United Airlines has been scored 7.4/10 in 9,145 reviews.
Air Canada Flights From Montreal to San Francisco
Across 10,613 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Montreal to San Francisco about 7 times each week, with ticket deals ranging from C$ 456 to C$ 633. Price data is based on momondo searches in the last 72 hours.

San Mateo

Belmont

Los Altos

San Bruno

Santa Cruz

Newark

Milpitas

Carmel-by-the-Sea

Turlock

South San Francisco

Palo Alto

Burlingame

Santa Clara

Cupertino

Mill Valley

Morgan Hill

Pacifica

Los Banos

Mountain View

Woodland

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?

Yes. momondo enables you to select and highlight flights to San Francisco from Montreal with this policy.

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

momondo helps you find the best flight between Montreal and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to San Francisco from Montreal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Fly to other destinations from Montreal

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Cheap flights from Montreal to San Francisco from C$ 313

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 19/4. 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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Our best Air Canada deals on Montreal to San Francisco flight tickets

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

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?

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

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

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?

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 16% 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 January 2026, prices for Montreal to San Francisco flights are approximately 9% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Montreal to San Francisco?

WestJet, Porter Airlines, and American Airlines are the most popular carriers operating from Montreal to San Francisco

Which airlines fly to San Francisco?

How often are flights from Montreal to San Francisco delayed?

Historically, on average around 18% of flights between Montreal and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

What is the most punctual flight time for Montreal to San Francisco flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Montreal to San Francisco flights?

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Montreal and San Francisco?

Toronto (YYZ) was the most common stop: 86% of momondo users choosing one-stop flights on this route connected there.

Which layover airport offers the lowest fares from Montreal to San Francisco?

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 413.

Which layover airport has the shortest travel time from Montreal to San Francisco?

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 8h 35m.

Which layover airport has the shortest connection time from Montreal to San Francisco?

Detroit (DTW) has the shortest average layover time for this route: 1h 21m.

How many flights depart from Montreal to San Francisco on average per day?

4 flights are operational daily from Montreal to San Francisco as of January 2026. The most popular departure time for this route is 5:00p.m., with 100% of flights per day taking off in the afternoon.

How many flights depart from Montreal to San Francisco on average per week?

28 flights are operational weekly from Montreal to San Francisco as of January 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

When to book flights from Montreal to San Francisco

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

Fastest flight time

Direct flights

Airports in San Francisco

How far is Montreal to San Francisco by plane?

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

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?

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

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

United Airlines Flights From Montreal to San Francisco

Air Canada Flights From Montreal to San Francisco

Travelling to a place near San Francisco?

Why use momondo?

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