HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montreal

$174+ Cheap flights from San Francisco (SFO) to Montreal (YMQ)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YMQ
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Montreal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Francisco to Montreal are usually found in April or March, booked 63 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from San Francisco to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Montreal (YMQ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 11, 2025.

Round-trip from

$361
(Trip.com)

One-way from

$174
(Air Canada)

Popular in

December

Cheapest in

April

Average price

$439

Good round-trip deal

$559 or less

Good one-way deal

$277 or less
From San Francisco to Montreal (YMQ)
Search Deals
One-way flight from San Francisco to Montreal (YMQ)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from San Francisco to Montreal (YMQ).
Search Deals
Price to beat on a one-way flight from San Francisco to Montreal (YMQ).
Search Deals

Find flight deals from San Francisco to Montreal

Cheapest flights from San Francisco to Montreal
Explore the most affordable flight options available from San Francisco to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/1412:50 pmSFO - YUL
3 stops27h 30mMultiple Airlines
jue. 10/236:55 pmYUL - SFO
1 stop17h 35mMultiple Airlines
Deal found 9/9$363
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/25:45 amSFO - YUL
2 stops15h 42mMultiple Airlines
mar. 10/77:00 amYUL - SFO
1 stop17h 24mMultiple Airlines
Deal found 9/9$364
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/117:30 amSFO - YUL
2 stops13h 57mWestJet
sáb. 10/186:45 amYUL - SFO
2 stops32h 09mWestJet
Deal found 9/9$365
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/237:30 amSFO - YUL
2 stops13h 57mWestJet
lun. 9/297:00 amYUL - SFO
1 stop17h 24mWestJet
Deal found 9/9$366
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/17:30 amSFO - YUL
2 stops13h 57mMultiple Airlines
sáb. 10/186:45 amYUL - SFO
1 stop8h 38mMultiple Airlines
Deal found 9/8$367
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1112:50 pmSFO - YUL
1 stop8h 51mMultiple Airlines
sáb. 10/186:45 amYUL - SFO
1 stop8h 38mMultiple Airlines
Deal found 9/10$368
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/110:15 amSFO - YUL
2 stops11h 22mMultiple Airlines
dom. 10/126:00 pmYUL - SFO
2 stops18h 30mMultiple Airlines
Deal found 9/9$369
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/112:50 pmSFO - YUL
1 stop8h 51mMultiple Airlines
sáb. 10/46:45 amYUL - SFO
1 stop8h 38mMultiple Airlines
Deal found 9/10$370
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/11:25 pmSFO - YUL
1 stop8h 12mPorter Airlines
mié. 10/86:45 amYUL - SFO
1 stop8h 38mPorter Airlines
Deal found 9/10$372
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/810:15 amSFO - YUL
2 stops27h 12mMultiple Airlines
mié. 10/156:45 amYUL - SFO
1 stop8h 38mMultiple Airlines
Deal found 9/10$373
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/206:00 amSFO - YUL
2 stops15h 43mMultiple Airlines
vie. 11/286:45 amYUL - SFO
1 stop8h 55mMultiple Airlines
Deal found 9/9$374

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Montreal 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from San Francisco to Montreal that are best for you.

Fly from

San Francisco

Fly to

Montreal

Route

Depart

Return

Price

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

mar. 10/7

10:55 pm-3:00 pm

1 stop13h 05m

Montreal Pierre Elliott Trudeau Intl

mié. 10/8

6:30 pm-9:40 pm

Nonstop6h 10m

$364

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

dom. 10/5

11:45 pm-8:16 am

Nonstop5h 31m

Montreal Pierre Elliott Trudeau Intl

jue. 10/23

6:30 pm-9:40 pm

Nonstop6h 10m

$388

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

mié. 10/1

11:45 pm-8:16 am

Nonstop5h 31m

Montreal Pierre Elliott Trudeau Intl

vie. 10/17

6:30 pm-9:40 pm

Nonstop6h 10m

$388

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

jue. 10/2

5:15 am-5:26 pm

1 stop9h 11m

Montreal Pierre Elliott Trudeau Intl

mié. 10/8

6:30 pm-9:40 pm

Nonstop6h 10m

$397

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

vie. 10/3

11:33 pm-10:40 am

1 stop8h 07m

Montreal Pierre Elliott Trudeau Intl

jue. 10/16

6:30 pm-9:40 pm

Nonstop6h 10m

$397

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

vie. 10/24

11:45 pm-8:16 am

Nonstop5h 31m

Montreal Pierre Elliott Trudeau Intl

vie. 10/31

6:00 am-8:08 pm

1 stop17h 08m

$403

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

vie. 10/10

11:45 pm-8:16 am

Nonstop5h 31m

Montreal Pierre Elliott Trudeau Intl

sáb. 10/18

9:45 am-6:28 pm

1 stop11h 43m

$408

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

jue. 10/2

5:15 am-5:26 pm

1 stop9h 11m

Montreal Pierre Elliott Trudeau Intl

vie. 10/17

4:55 pm-11:59 pm

1 stop10h 04m

$408

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

sáb. 2/28

8:25 am-8:18 pm

1 stop8h 53m

Montreal Pierre Elliott Trudeau Intl

sáb. 3/7

5:50 pm-9:22 pm

Nonstop6h 32m

$417

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

dom. 11/23

12:43 am-7:48 pm

2 stops16h 05m

Montreal Pierre Elliott Trudeau Intl

jue. 11/27

9:15 am-9:10 pm

1 stop14h 55m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from San Francisco to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Montreal

How far ahead should I book a flight from San Francisco to Montreal?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Montreal. Price data was last updated on August 29, 2025.

The best time to book flights from San Francisco to Montreal is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to Montreal?

Currently, January is the cheapest month in which you can book a flight from San Francisco to Montreal (average of $270). Flying from San Francisco to Montreal in July is currently the most expensive (average of $409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to YMQ?

Find hourly flight availability from San Francisco to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

It’s typically best to fly out from San Francisco to Montreal in the afternoon. Doing so could potentially save you 72% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from San Francisco to Montreal?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Montreal. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their San Francisco to Montreal flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to Montreal

Explore weekly flight availability from San Francisco to Montreal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated septiembre 11, 2025.

The most flights from SFO to YMQ are scheduled on a Thursday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from San Francisco to Montreal?

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montreal. Reviews last updated septiembre 11, 2025.
Read through reviews of airlines operating flights from San Francisco to Montreal, such as Porter Airlines, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Overall

7.9

Entertainment

7.0

Comfort

7.9

Food

7.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Overall

7.9

Entertainment

7.0

Comfort

7.9

Food

7.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,937 reviews
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Overall

7.9

Entertainment

7.0

Comfort

7.9

Food

7.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Overall

7.9

Entertainment

7.0

Comfort

7.9

Food

7.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,091 reviews
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Overall

7.9

Entertainment

7.0

Comfort

7.9

Food

7.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews

Crew

8.6

Overall

7.9

Entertainment

7.0

Comfort

7.9

Food

7.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Francisco to Montreal?

    Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to Montreal from San Francisco. Booking flights from San Francisco (SFO) to Montreal should be relatively easy as there are 8 daily outbound flights to Montreal from 3 different airlines.

  • How long is the flight from San Francisco to Montreal?

    For as low as $364, United Airlines can have you in Montreal from San Francisco in 13h 05m. There are 2531 mi between San Francisco and Montreal.

  • What are the cheapest airlines flying from San Francisco to Montreal round-trip?

    Cheapflights users have booked flights from San Francisco to Montreal round-trip from $117. Other airlines that can offer you cheap pricing are Air Canada, from $209, and United Airlines, from $299. You may be able to fly from San Francisco to Montreal for 77% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Francisco to Montreal one-way?

    The cheapest airlines for a one-way flight from San Francisco to Montreal are United Airlines ($182), WestJet ($187), and Air Canada ($188).

  • What are the most reliable airlines from San Francisco to Montreal?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Montreal on time: Air Canada (74%), United Airlines (74%), Brussels Airlines (71%).

  • What are the cheapest flights from San Francisco to Montreal?

    Looking at all options, your cheapest flight can be booked for $187. While the most popular route (San Francisco - Montreal Pierre Elliott Trudeau Intl) can be booked for $296 on average, our data indicates $1,156 when flying from San Francisco to Montreal.

  • Can I find deals for flights from San Francisco to Montreal that include hotel bookings?

    Yes. In addition to deals on San Francisco to Montreal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Montreal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Montreal.

  • Can I find deals for business class flights from San Francisco to Montreal?

    Yes. Cheapflights offers flight deals from San Francisco to Montreal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Montreal?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Montreal (average of $270). Flying from San Francisco to Montreal in July is currently the most expensive (average of $409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Montreal

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Pierre Elliott Trudeau Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
Los Angeles to Québec City flights
Ontario to Pierre Elliott Trudeau Intl flights
San Francisco to Québec City flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Los Angeles to Ottawa flights
Santa Ana to Pierre Elliott Trudeau Intl flights
San Francisco to Ottawa flights
Sacramento to Pierre Elliott Trudeau Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
Burbank to Pierre Elliott Trudeau Intl flights
Palm Springs to Pierre Elliott Trudeau Intl flights
Sacramento to Ottawa flights
Oakland to Pierre Elliott Trudeau Intl flights
Ontario to Québec City flights
Fresno to Pierre Elliott Trudeau Intl flights
San Diego to Québec City flights
Ontario to Ottawa flights
Las Vegas to Ottawa flights
San Diego to Ottawa flights
San Jose to Québec City flights
San Jose to Ottawa flights
Reno to Pierre Elliott Trudeau Intl flights
Sacramento to Québec City flights
Burbank to Québec City flights
Santa Ana to Québec City flights
Santa Ana to Ottawa flights
Palm Springs to Québec City flights
Long Beach to Pierre Elliott Trudeau Intl flights
Monterey to Pierre Elliott Trudeau Intl flights
Santa Barbara to Pierre Elliott Trudeau Intl flights
Santa Rosa to Pierre Elliott Trudeau Intl flights
Palm Springs to Ottawa flights
Burbank to Ottawa flights
Monterey to Québec City flights
Reno to Ottawa flights
Medford to Pierre Elliott Trudeau Intl flights
Oakland to Québec City flights
Long Beach to Ottawa flights
Santa Rosa to Québec City flights
Santa Rosa to Ottawa flights
Oakland to Ottawa flights
Medford to Ottawa flights
San Francisco to Gaspé flights

Top 3 airlines flying from San Francisco to Montreal

Discover the top 3 airlines that operate flights from San Francisco to Montreal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$117Average$306FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$209Average$538FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$299Average$567FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.