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$166+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YMQ
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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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 July 30, 2025.

Round-trip from

$386
(United Airlines)

One-way from

$166
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$587

Good round-trip deal

$548 or less

Good one-way deal

$241 or less
From San Francisco to Montreal (YMQ)
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One-way flight from San Francisco to Montreal (YMQ)
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Highest demand for flights based on searches. 14% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from San Francisco to Montreal (YMQ).
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Price to beat on a one-way flight from San Francisco to Montreal (YMQ).
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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 July 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1911:45 pmSFO - YUL
Nonstop5h 31mUnited Airlines
Tue 8/266:30 pmYUL - SFO
Nonstop6h 10mUnited Airlines
Deal found 7/28$386
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Mon 9/17:10 amSFO - YUL
1 stop10h 40mMultiple Airlines
Mon 9/811:00 amYUL - SFO
3 stops25h 30mMultiple Airlines
Deal found 7/29$387
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:30 amSFO - YUL
1 stop7h 51mAir Canada
Sun 8/317:30 amYUL - SFO
1 stop11h 03mAir Canada
Deal found 7/29$388
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Sat 10/251:25 pmSFO - YUL
1 stop8h 12mPorter Airlines
Wed 11/56:45 amYUL - SFO
1 stop8h 55mPorter Airlines
Deal found 7/30$404
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Tue 9/912:50 pmSFO - YUL
1 stop8h 51mWestJet
Thu 9/185:30 pmYUL - SFO
1 stop21h 24mWestJet
Deal found 7/28$406
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/307:29 amSFO - YUL
1 stop13h 24mDelta
Fri 9/126:55 pmYUL - SFO
2 stops15h 55mDelta
Deal found 7/29$415

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 July 30, 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

Tue 8/19

11:45 pm-8:16 am

Nonstop5h 31m

Montreal Pierre Elliott Trudeau Intl

Tue 8/26

6:30 pm-9:40 pm

Nonstop6h 10m

$386

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Mon 9/1

7:10 am-8:50 pm

1 stop10h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 9/8

11:00 am-9:30 am

3 stops25h 30m

$387

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Mon 8/25

7:30 am-6:21 pm

1 stop7h 51m

Montreal Pierre Elliott Trudeau Intl

Sun 8/31

7:30 am-3:33 pm

1 stop11h 03m

$388

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sat 10/25

1:25 pm-12:37 am

1 stop8h 12m

Montreal Pierre Elliott Trudeau Intl

Wed 11/5

6:45 am-12:40 pm

1 stop8h 55m

$404

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Tue 9/9

12:50 pm-12:41 am

1 stop8h 51m

Montreal Pierre Elliott Trudeau Intl

Thu 9/18

5:30 pm-11:54 am

1 stop21h 24m

$406

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sat 8/30

7:29 am-11:53 pm

1 stop13h 24m

Montreal Pierre Elliott Trudeau Intl

Fri 9/12

6:55 pm-7:50 am

2 stops15h 55m

$415

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Mon 8/25

12:43 am-4:10 pm

2 stops12h 27m

$166

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Sat 8/16

8:36 pm-12:37 am

2 stops25h 01m

$167

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Mon 8/25

7:30 am-12:27 am

2 stops13h 57m

$169

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Tue 8/26

7:10 am-8:50 pm

1 stop10h 40m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 12 results
1
2

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 July 25, 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 July 30, 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 July 27, 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 July 30, 2025.

The most flights from SFO to YMQ are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 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 July 30, 2025.
Read through reviews of airlines operating flights from San Francisco to Montreal, such as Porter Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
318 reviews

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
318 reviews
Porter Airlines
8.0
Very good
318 reviews

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Delta
8.0
Very good
7,980 reviews
Porter Airlines
8.0
Very good
318 reviews

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,896 reviews
Porter Airlines
8.0
Very good
318 reviews

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
318 reviews

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
2,975 reviews
Porter Airlines
8.0
Very good
318 reviews

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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 10 daily outbound flights to Montreal from 5 different airlines.

  • 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 $386. Other airlines that can offer you cheap pricing are Air Canada, from $388, and WestJet, from $399. You may be able to fly from San Francisco to Montreal for 27% 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 ($166), WestJet ($169), and American Airlines ($170).

  • 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 (93%), Air New Zealand (88%), Air Canada (88%).

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

    Looking at all options, your cheapest flight can be booked for $166. While the most popular route (San Francisco - Montreal Pierre Elliott Trudeau Intl) can be booked for $298 on average our data indicates $1,930 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

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Alternative routes for San Francisco to Montreal

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Top 5 airlines flying from San Francisco to Montreal

Discover the top 5 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$117Average$304FlexibilityNo cancel feeOn-time52%
WestJetCheapest$130Average$395FlexibilityNo cancel feeOn-time60%
Air TransatCheapest$193Average$412FlexibilityNo cancel feeOn-time50%
Air CanadaCheapest$210Average$547FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$275Average$556FlexibilityNo cancel feeOn-time69%

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