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 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.

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

United Airlines, Delta, and WestJet are the most popular carriers operating from Montreal to San Francisco

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.

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 week?

28 flights are operational weekly from Montreal to San Francisco as of December 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

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 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 56% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 6 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

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 December 2025. The most popular departure time for this route is 5:00p.m., with 100% of flights per day taking off in the afternoon.

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$ 443.

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.

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 6 operators available for flights from Montreal to San Francisco Airport as of December 2025.

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$ 336 Cheap Flights from Montreal to San Francisco in 2025/26

Q: What is the typical price of a round-trip flight between Montreal and San Francisco?

Prices are currently low for flights on this route. Typical prices usually range from C$ 626 to C$ 876. The lowest price recently found on this route was C$ 529.

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6:45 a.m. - 12:40 p.m.

YUL

SFO

8h 55m1 stop

1:40 p.m. - 12:35 a.m.

SFO

YUL

7h 55m1 stop

C$ 529Porter Airlines

Mon, 9 Feb - Sun, 22 Feb

6:45 a.m. - 12:38 p.m.

YUL

SFO

8h 53m1 stop

1:40 p.m. - 12:35 a.m.

SFO

YUL

7h 55m1 stop

C$ 532Porter Airlines

Thu, 15 Jan - Mon, 19 Jan

6:45 a.m. - 12:10 p.m.

YUL

SFO

32h 25m2 stops

12:50 p.m. - 12:42 a.m.

SFO

YUL

8h 52m1 stop

C$ 533WestJet

Thu, 23 Apr - Wed, 29 Apr

6:45 a.m. - 12:40 p.m.

YUL

SFO

8h 55m1 stop

1:40 p.m. - 12:35 a.m.

SFO

YUL

7h 55m1 stop

C$ 535Porter Airlines

Sun, 22 Feb - Fri, 27 Feb

6:45 a.m. - 12:12 p.m.

YUL

SFO

32h 27m2 stops

1:00 p.m. - 12:43 a.m.

SFO

YUL

32h 43m2 stops

C$ 536WestJet

Thu, 15 Jan - Sun, 25 Jan

6:45 a.m. - 12:40 p.m.

YUL

SFO

8h 55m1 stop

1:40 p.m. - 12:35 a.m.

SFO

YUL

7h 55m1 stop

C$ 539Porter Airlines

Wed, 4 Feb - Tue, 17 Feb

6:45 a.m. - 12:40 p.m.

YUL

SFO

8h 55m1 stop

1:40 p.m. - 12:35 a.m.

SFO

YUL

7h 55m1 stop

C$ 542Porter Airlines

Tue, 10 Feb - Wed, 18 Feb

6:45 a.m. - 12:40 p.m.

YUL

SFO

8h 55m1 stop

1:40 p.m. - 12:35 a.m.

SFO

YUL

7h 55m1 stop

C$ 543Porter Airlines

Tue, 17 Feb - Wed, 4 Mar

9:00 a.m. - 3:35 p.m.

YUL

SFO

9h 35m1 stop

7:30 a.m. - 7:25 p.m.

SFO

YUL

8h 55m1 stop

C$ 544Air Canada

Tue, 3 Feb - Tue, 10 Feb

9:00 a.m. - 3:35 p.m.

YUL

SFO

9h 35m1 stop

7:30 a.m. - 7:25 p.m.

SFO

YUL

8h 55m1 stop

C$ 546Air Canada

Wed, 21 Jan - Wed, 28 Jan

WestJet flights from Montreal to San Francisco

Our best WestJet deals on Montreal to San Francisco flight tickets

WestJet

23 Apr

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

32h 25m

2 stops

SFO12:10 p.m.San Francisco

29 Apr

SFO12:50 p.m.San Francisco

8h 52m

1 stop

YUL12:42 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 533

Find similar

WestJet

15 Jan

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

32h 27m

2 stops

SFO12:12 p.m.San Francisco

25 Jan

SFO1:00 p.m.San Francisco

32h 43m

2 stops

YUL12:43 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 536

Find similar

WestJet

14 Mar

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

32h 25m

2 stops

SFO12:10 p.m.San Francisco

17 Mar

SFO1:00 p.m.San Francisco

15h 05m

1 stop

YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 547

Find similar

Porter Airlines flights from Montreal to San Francisco

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

Porter Airlines

9 Feb

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

8h 55m

1 stop

SFO12:40 p.m.San Francisco

22 Feb

SFO1:40 p.m.San Francisco

7h 55m

1 stop

YUL12:35 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 529

Find similar

Porter Airlines

15 Jan

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

8h 53m

1 stop

SFO12:38 p.m.San Francisco

19 Jan

SFO1:40 p.m.San Francisco

7h 55m

1 stop

YUL12:35 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 532

Find similar

Porter Airlines

22 Feb

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

8h 55m

1 stop

SFO12:40 p.m.San Francisco

27 Feb

SFO1:40 p.m.San Francisco

7h 55m

1 stop

YUL12:35 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 535

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 9/2

6:45 a.m.-12:40 p.m.

1 stop8h 55m

San Francisco

Sun 22/2

1:40 p.m.-12:35 a.m.

1 stop7h 55m

C$ 529

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

6:45 a.m.-12:38 p.m.

1 stop8h 53m

San Francisco

Mon 19/1

1:40 p.m.-12:35 a.m.

1 stop7h 55m

C$ 532

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 23/4

6:45 a.m.-12:10 p.m.

2 stops32h 25m

San Francisco

Wed 29/4

12:50 p.m.-12:42 a.m.

1 stop8h 52m

C$ 533

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sun 22/2

6:45 a.m.-12:40 p.m.

1 stop8h 55m

San Francisco

Fri 27/2

1:40 p.m.-12:35 a.m.

1 stop7h 55m

C$ 535

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

6:45 a.m.-12:12 p.m.

2 stops32h 27m

San Francisco

Sun 25/1

1:00 p.m.-12:43 a.m.

2 stops32h 43m

C$ 536

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

6:45 a.m.-12:40 p.m.

1 stop8h 55m

San Francisco

Tue 17/2

1:40 p.m.-12:35 a.m.

1 stop7h 55m

C$ 539

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 10/2

6:45 a.m.-12:40 p.m.

1 stop8h 55m

San Francisco

Wed 18/2

1:40 p.m.-12:35 a.m.

1 stop7h 55m

C$ 542

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

6:45 a.m.-12:40 p.m.

1 stop8h 55m

San Francisco

Wed 4/3

1:40 p.m.-12:35 a.m.

1 stop7h 55m

C$ 543

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 3/2

9:00 a.m.-3:35 p.m.

1 stop9h 35m

San Francisco

Tue 10/2

7:30 a.m.-7:25 p.m.

1 stop8h 55m

C$ 544

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

9:00 a.m.-3:35 p.m.

1 stop9h 35m

San Francisco

Wed 28/1

7:30 a.m.-7:25 p.m.

1 stop8h 55m

C$ 546

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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$ 499, are often lower during this time because this is during the off-season. The month of May is another great option to travel to San Francisco, with average flight prices from Montreal averaging around C$ 507.

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$ 1,076. On the other hand, Monday 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$ 1,252.

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

Flying to San Francisco from Montreal at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 620 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to San Francisco is in the afternoon when prices are around C$ 1,257.

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$ 571 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$ 493 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 17% 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 December 2025, prices for Montreal to San Francisco flights are approximately 14% 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$ 538
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$ 538. The best round-trip flight deal from Montreal to San Francisco found on momondo in the last 72 hours is C$ 921.

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 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 4080.4 km. In terms of flight time, this usually takes a little over 6h 21m.
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 6 operators available for flights from Montreal to San Francisco Airport as of December 2025.
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 82.49% of the total bookings. Other popular models include Airbus A220-300 with 6.40%, De Havilland (Bombardier) DHC-8-400 Dash 8Q with 3.01%, and Boeing 737 MAX 9 with 2.45%.
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 55% of the total bookings. Other popular airlines include Porter Airlines with 20%, United Airlines with 20%, 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
American Airlines	PriceFrom C$ 215	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
Porter Airlines	PriceFrom C$ 312	Free Cancellation	Rating 8.0 397 reviews	Search Porter Airlines flights
WestJet	PriceFrom C$ 332	Free Cancellation	Rating 7.2 3,193 reviews	Search WestJet flights
United Airlines	PriceFrom C$ 424	Free Cancellation	Rating 7.4 9,089 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 454	Free Cancellation	Rating 7.1 10,514 reviews	Search Air Canada flights
Delta	PriceFrom C$ 513	Free Cancellation	Rating 7.9 8,011 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$ 424 round-trip. United Airlines has been scored 7.4/10 in 9,089 reviews.
Air Canada Flights From Montreal to San Francisco
Across 10,514 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$ 454 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

Cupertino

Mill Valley

Morgan Hill

Los Banos

Mountain View

Pacifica

Woodland

Roseville

Berkeley

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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Cheap flights from Montreal to San Francisco from C$ 336

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 20/1. 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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WestJet flights from Montreal to San Francisco

Our best WestJet deals on Montreal to San Francisco flight tickets

Porter Airlines flights from Montreal to San Francisco

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

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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

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 17% 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 December 2025, prices for Montreal to San Francisco flights are approximately 14% cheaper when compared to flights at the same time last year.

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

United Airlines, Delta, and WestJet 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$ 443.

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 December 2025. 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 December 2025. 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?