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$188+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YMQ
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Montreal are usually found in April or September, booked 18 days in advance, depart on a Wednesday or Tuesday and return on a Friday

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 November 4, 2025.

This Mytrip deal was found by Cheapflights users on 11/4. 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.
Thu 12/410:15 amSFO - YUL
3 stops28h 25mMultiple Airlines
Wed 12/107:30 pmYUL - SFO
2 stops17h 00mMultiple Airlines
Deal found 11/4$315
This Trip.com deal was found by Cheapflights users on 11/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:15 amSFO - YUL
2 stops17h 50mMultiple Airlines
Thu 12/186:45 amYUL - SFO
1 stop8h 55mMultiple Airlines
Deal found 11/4$323
This Mytrip deal was found by Cheapflights users on 11/3. 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.
Thu 12/410:15 amSFO - YUL
3 stops28h 25mMultiple Airlines
Thu 12/117:30 pmYUL - SFO
1 stop19h 42mMultiple Airlines
Deal found 11/3$339
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Sun 12/710:15 amSFO - YUL
1 stop27h 12mMultiple Airlines
Tue 12/96:45 amYUL - SFO
1 stop8h 55mMultiple Airlines
Deal found 11/3$349
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 12/710:15 amSFO - YUL
1 stop27h 12mMultiple Airlines
Sun 12/146:45 amYUL - SFO
1 stop8h 55mMultiple Airlines
Deal found 11/4$356
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Thu 12/410:15 amSFO - YUL
2 stops17h 50mMultiple Airlines
Sat 12/66:45 amYUL - SFO
1 stop8h 55mMultiple Airlines
Deal found 11/3$376
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Thu 12/410:15 amSFO - YUL
2 stops17h 50mMultiple Airlines
Mon 12/86:45 amYUL - SFO
1 stop8h 55mMultiple Airlines
Deal found 11/3$379

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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$315
(Mytrip)

One-way from

$188
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$513

Good round-trip deal

$685 or less

Good one-way deal

$389 or less
Provider with most accurate pricing for San Francisco-Montreal (YMQ) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Montreal (YMQ) flights.
Search Deals
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. 11% potential increase in price ($67 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 November 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

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 November 4, 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

Fri 1/16

11:20 pm-3:16 pm

1 stop12h 56m

Montreal Pierre Elliott Trudeau Intl

Thu 1/22

5:50 pm-9:22 pm

Nonstop6h 32m

$524

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Thu 1/29

12:47 am-1:42 pm

1 stop9h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

9:34 am-9:48 pm

2 stops15h 14m

$545

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sat 12/13

6:55 pm-2:00 pm

2 stops16h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 12/21

2:13 pm-9:50 pm

1 stop10h 37m

$549

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Fri 12/26

8:50 pm-2:00 pm

2 stops14h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 1/20

9:15 am-7:00 pm

2 stops12h 45m

$554

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sun 2/1

12:47 am-1:42 pm

1 stop9h 55m

Montreal Pierre Elliott Trudeau Intl

Thu 2/5

12:50 pm-9:48 pm

1 stop11h 58m

$577

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sun 12/28

12:10 am-1:49 pm

1 stop10h 39m

Montreal Pierre Elliott Trudeau Intl

Tue 1/6

12:54 pm-11:27 pm

1 stop13h 33m

$593

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Thu 11/27

8:25 am-4:49 pm

Nonstop5h 24m

Montreal Pierre Elliott Trudeau Intl

Wed 12/3

5:50 pm-9:22 pm

Nonstop6h 32m

$597

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Tue 12/2

12:43 am-4:50 pm

1 stop13h 07m

Montreal Pierre Elliott Trudeau Intl

Sun 12/7

5:50 pm-9:22 pm

Nonstop6h 32m

$610

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sat 12/6

12:43 am-4:50 pm

1 stop13h 07m

Montreal Pierre Elliott Trudeau Intl

Sat 12/13

5:50 pm-9:22 pm

Nonstop6h 32m

$610

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Wed 12/24

8:20 am-7:48 pm

1 stop8h 28m

Montreal Pierre Elliott Trudeau Intl

Mon 12/29

4:45 pm-1:14 am

1 stop11h 29m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 20 results
1
2

Compare providers for flights from San Francisco to Montreal

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Montreal in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Montreal flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Montreal flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Montreal flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Montreal flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Montreal flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 31, 2025.

The best time to book flights from San Francisco to Montreal is 18 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, April is the cheapest month in which you can book a flight from San Francisco to Montreal (average of $157). Flying from San Francisco to Montreal in September is currently the most expensive (average of $351). 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 November 4, 2025.

It’s typically best to fly out from San Francisco to Montreal in the afternoon. Doing so could potentially save you 65% 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 November 2, 2025.

Travelers seeking maximum savings on their San Francisco to Montreal flight should consider departing on Tuesday 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 November 4, 2025.

The most flights from SFO to YMQ are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 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 November 4, 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
8.0
Very good
387 reviews

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
387 reviews
Porter Airlines
8.0
Very good
387 reviews

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
United Airlines
7.4
Good
8,998 reviews
Porter Airlines
8.0
Very good
387 reviews

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
American Airlines
7.2
Good
11,038 reviews
Porter Airlines
8.0
Very good
387 reviews

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
WestJet
7.2
Good
3,153 reviews
Porter Airlines
8.0
Very good
387 reviews

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,400 reviews
Porter Airlines
8.0
Very good
387 reviews

Entertainment

7.0

Food

7.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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 4 daily outbound flights to Montreal from 4 different airlines.

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

    For as low as $545, Delta can have you in Montreal from San Francisco in 9h 55m. There are 2531 mi between San Francisco and Montreal. This flight may include one or multiple stops.

  • 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 $130. Other airlines that can offer you cheap pricing are Porter Airlines, from $151, and Air Canada, from $212. You may be able to fly from San Francisco to Montreal for 75% less than the average price by searching for these airlines.

  • 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: Brussels Airlines (85%), Air Canada (81%), United Airlines (81%).

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

    Looking at all options, your cheapest flight can be booked for $202. While the most popular route (San Francisco - Montreal Pierre Elliott Trudeau Intl) can be booked for $315 on average, our data indicates $1,425 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, April is the cheapest month in which you can book a flight from San Francisco to Montreal (average of $157). Flying from San Francisco to Montreal in September is currently the most expensive (average of $351). 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

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Alternative routes for San Francisco to Montreal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from San Francisco to Montreal

Discover the top 4 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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$130Average$395FlexibilityNo cancel feeOn-time60%
Porter AirlinesCheapest$151Average$311FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$212Average$546FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$300Average$575FlexibilityNo cancel feeOn-time69%

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