SFO - YUL

C$ 336 Find Cheap Flights from San Francisco to Montreal – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Montreal departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 594
Typical prices: C$ 625-C$ 1,099
WestJet
Mon 14/9Mon 21/9
SFO - YUL • 1 stop
Cheapest direct flights
C$ 759
Typical prices: C$ 665-C$ 1,101
Air Canada
Sun 13/9Tue 15/9
SFO - YUL • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United Economy Plus adds up to 15 cm legroom; Air Canada Preferred Economy adds 10.
Porter E195-E2 offers wider seats and Wi-Fi, plus free drinks on board.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from C$ 594 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
You can fly direct with Air Canada and United Airlines. Average duration is 5h 33m
Direct flights
Direct flights
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Direct flights
Direct flights
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 57% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
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Flight Deals
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Expert advice
Flight Deals

Cheap Flights from San Francisco to Montreal (SFO-YUL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Montreal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Montreal

Mon, 14 Sep - Mon, 21 Sep
WestJet Logo
6:00 a.m. - 7:05 a.m.
SFO
-
YUL
22h 05m
1 stop
WestJet Logo
8:00 p.m. - 12:00 p.m.
YUL
-
SFO
19h 00m
1 stop
C$ 594WestJet
Tue, 15 Sep - Tue, 22 Sep
WestJet Logo
6:00 a.m. - 7:05 a.m.
SFO
-
YUL
22h 05m
1 stop
WestJet Logo
8:00 p.m. - 9:55 p.m.
YUL
-
SFO
28h 55m
1 stop
C$ 594WestJet
Sat, 12 Sep - Tue, 15 Sep
Multiple Airlines Logo
6:00 a.m. - 7:05 a.m.
SFO
-
YUL
22h 05m
1 stop
Multiple Airlines Logo
6:45 a.m. - 12:20 p.m.
YUL
-
SFO
8h 35m
1 stop
C$ 595Multiple Airlines
Thu, 15 Oct - Mon, 19 Oct
WestJet Logo
6:00 a.m. - 7:05 a.m.
SFO
-
YUL
22h 05m
1 stop
WestJet Logo
8:00 p.m. - 12:00 p.m.
YUL
-
SFO
19h 00m
1 stop
C$ 595WestJet
Fri, 21 Aug - Thu, 27 Aug
Porter Airlines Logo
1:20 p.m. - 12:37 a.m.
SFO
-
YUL
8h 17m
1 stop
Porter Airlines Logo
6:45 a.m. - 12:20 p.m.
YUL
-
SFO
8h 35m
1 stop
C$ 649Porter Airlines
Thu, 10 Sep - Wed, 23 Sep
Porter Airlines Logo
1:20 p.m. - 12:37 a.m.
SFO
-
YUL
8h 17m
1 stop
Porter Airlines Logo
6:45 a.m. - 12:20 p.m.
YUL
-
SFO
8h 35m
1 stop
C$ 653Porter Airlines
Thu, 3 Dec - Wed, 9 Dec
Porter Airlines Logo
1:45 p.m. - 12:35 a.m.
SFO
-
YUL
7h 50m
1 stop
Porter Airlines Logo
6:45 a.m. - 12:45 p.m.
YUL
-
SFO
9h 00m
1 stop
C$ 656Porter Airlines
Fri, 11 Sep - Sun, 13 Sep
Air Canada Logo
10:45 p.m. - 1:51 a.m.
SFO
-
YUL
24h 06m
1 stop
Air Canada Logo
8:10 a.m. - 11:17 a.m.
YUL
-
SFO
6h 07mdirect
C$ 698Air Canada
Thu, 27 Aug - Fri, 28 Aug
Air Canada Logo
12:50 p.m. - 11:43 p.m.
SFO
-
YUL
7h 53m
1 stop
Air Canada Logo
10:15 a.m. - 3:27 p.m.
YUL
-
SFO
8h 12m
1 stop
C$ 722Air Canada
Sat, 12 Sep - Mon, 14 Sep
Air Canada Logo
10:45 p.m. - 1:51 a.m.
SFO
-
YUL
24h 06m
1 stop
Air Canada Logo
7:30 a.m. - 11:20 p.m.
YUL
-
SFO
18h 50m
1 stop
C$ 731Air Canada
Booking Insights

KAYAK's insights & trends for San Francisco to Montreal flights

Get data-powered insights and trends into flights from San Francisco to Montreal to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport departing in September.

Flight prices are below average for this route right now.

Flights to Montreal Pierre Elliott Trudeau Intl Airport from San Francisco usually cost between C$ 672 and C$ 1,050 in September.
The lowest price found in the past 5 days was C$ 594 on WestJet (14 Sep–21 Sep).

What’s the cheapest day of the week to fly from San Francisco to Montreal?

The average price of all round-trip flights from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from San Francisco to Montreal, you should consider leaving on a Monday and avoid Tuesdays if you are looking for the best rates. For your return to San Francisco, you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

What is the cheapest month to fly from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport is April, where tickets cost C$ 698 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is C$ 1,203 and C$ 1,033 respectively.

Can I save money by flying with a layover from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at C$ 658 on average.

How far in advance should I book a flight from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport, you should book around 4 weeks before departure, which saves you about 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from San Francisco to Montreal

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Air Canada

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

John Walton

John Walton

Expert on Porter Airlines

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Mark Stachiew

Mark Stachiew

Expert on YUL

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low season

February

Cheapest flight

C$ 336
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly (22% more expensive on average)
Flight from San Francisco to Montreal

When to book flights from San Francisco to Montreal

Are your dates flexible? Find out the best times to travel from San Francisco to Montreal based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Francisco to Montreal flights

  • What is the cheapest flight from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport?

    In the last 5 days, the lowest price for a flight from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport was C$ 336 for a one-way ticket and C$ 594 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to Montreal?

    All the following airlines offer inflight Wi-Fi service on the San Francisco to Montreal flight route: Air Canada, Qatar Airways, Iberia, British Airways, Finnair, Aer Lingus, and United Airlines.

  • Which aircraft models fly most regularly from San Francisco to Montreal?

    The Airbus A220-300 is the aircraft model that flies most regularly on the San Francisco to Montreal flight route.

  • Which airline alliances offer flights from San Francisco to Montreal?

    Star Alliance is the only airline alliance operating flights between San Francisco and Montreal.

  • On which days can I fly direct from San Francisco to Montreal?

    There are direct flights from San Francisco to Montreal on a daily basis.

  • Which is the best airline for flights from San Francisco to Montreal, Porter Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from San Francisco to Montreal are Porter Airlines and Air Canada. With an average price for the route of C$ 790 and an overall rating of 8.0, Porter Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 967 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from San Francisco to Montreal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Montreal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Montreal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from San Francisco is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Montreal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Montreal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Montreal Pierre Elliott Trudeau Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 504 or less one-way.

Prefer to fly direct from San Francisco to Montreal?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Montreal Pierre Elliott Trudeau Intl.
Find which airlines fly direct from San Francisco Airport to Montreal Pierre Elliott Trudeau Intl Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Montreal Pierre Elliott Trudeau Intl

Monday

Air Canada,United Airlines

Air Canada,United Airlines

Tuesday

Air Canada,United Airlines

Air Canada,United Airlines

Wednesday

Air Canada,United Airlines

Air Canada,United Airlines

Thursday

Air Canada,United Airlines

Air Canada,United Airlines

Friday

Air Canada,United Airlines

Air Canada,United Airlines

Saturday

Air Canada,United Airlines

Air Canada,United Airlines

Sunday

Air Canada,United Airlines

Air Canada,United Airlines

See more nonstop flights

Direct returns

Montreal Pierre Elliott Trudeau Intl to San Francisco

Monday

Air Canada,United Airlines

Air Canada,United Airlines

Tuesday

Air Canada,United Airlines

Air Canada,United Airlines

Wednesday

Air Canada,United Airlines

Air Canada,United Airlines

Thursday

Air Canada,United Airlines

Air Canada,United Airlines

Friday

Air Canada,United Airlines

Air Canada,United Airlines

Saturday

Air Canada,United Airlines

Air Canada,United Airlines

Sunday

Air Canada,United Airlines

Air Canada,United Airlines

See more nonstop flights

Reviews of the top airlines flying from San Francisco to Montreal

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Montreal. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Montreal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 450 reviews
8.2Boarding
8.6Crew
7.5Food
6.9Entertainment
8.0Comfort
Airline reviews

The agent at check in was very cordial and gave me seat 4a with nobody beside me as I asked if possible

10.0 ExcellentYvon, Jul 2026
YQM - YHU
Read more Porter Airlines reviews

The agent at check in was very cordial and gave me seat 4a with nobody beside me as I asked if possible

Seats not as comfortable but understand as it was a smaller plane/ short flight. All in all, I’ve never had any issues with Porter. Great company to fly with

3.5 hr delay for a 1 hr work flight. No information as to why the delay until 20 mins before boarding.

The flight was fine see earlier note for the problem

Overall very good... staff were friendly and helpful. boarding was good for the most part, but a little hard to get our carry-on bags on there.... I think people should be directed to keep their coats and small bags with them until all the carry-ons are loaded, and then, if there is space, they can put their small bags and coats up top.. makes it much easier to put baggage up. i loved the internet feature, but the entertainment was not there unless you have your own Netflix or similar platform. My chair did not recline, which was very annoying, and the arms won't go up near the isle, which makes it tough to get in and out of the seat.

The staff is always great. Just the fact that our flight was the only one delayed from Halifax when all other carries were still flying. It happen a year ago out of Toronto as well. All others were flying but our flight got cancelled 1 hr before the time of departure.

Chaotic boarding, but mostly my issues are with Toronto airport

Flight delayed by half hour, causing rush to get to connecting flight in Toronto Pearson which doesn’t have good flow for managing immigration check and connections.

Tight transfer in Montreal. (15 min) However, we made it, as did my luggage.

Flight was smooth and comfortable. The crew were exceptional. Amanda, Nichole and Hershel were attentive to our every need. So friendly. My daughter and I were surprised at quality of service. Loved the double row seating. Snacks were delicious. We would definitely fly with Porter again. Flight PD 670 SFO to YYZ Thank you so much for the best flight experience we have had

We ran into trouble in Montreal. Exited the plane and Air Canada was excellent getting everyone quickly to their destinations. I give Air Canada a 100%.

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

It was a smooth flight both in the sky and landing!

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

No paper towels in bathroom. Aisle seat difficult to get out of Other than those, excellent service

Had to sit on the plane for 3 hours before they kicked us off and canceled the flight and we only received two free food vouchers absolutely ridiculous

Plenty of room in the exit row. Sat on the plane an hour before taking off.☹️ Landed late and had to wait for gate availability.

They canceled the flight on us very close to the flight date .

Boarding was quick, everything on time, no food, but drinks served twice. Seat in front was leaned back the whole flight, so was tight during take off. Seats were otherwise comfortable and staff was helpful and friendly

There was only good for purchase. In the international flights it used to be better.

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

Information on your arrival and departure airports