Cheap Flights from Montreal to San Francisco International

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Compare Montreal to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

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Flight deals from Montreal to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Montreal to San Francisco International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Montreal to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal to San Francisco International flights are currently cheapest in August.

Direct flights from Montreal to San Francisco International

Montreal to San Francisco International: Alternative routes

Compare routes from Montreal to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Montreal to San Francisco: Flight information

The things to know before you go.
Cheapest flight foundR 3,192
Cheapest month to flyAugust
Average flight time6 hrs, 17 mins
Most popular airlineUnited
Average flights per week59

Finding cheap flights from Montreal to San Francisco International: Frequently asked questions

The best price we found for a return flight from Montreal to San Francisco International is R 5,057. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
6 hours and 17 minutes is the average flight time from Montreal to San Francisco International.
United, Air Canada and Air New Zealand fly direct from Montreal to San Francisco International.
As of April 2025, there are 59 flights per week flying from Montreal to San Francisco International.
The cheapest month to fly from Montreal to San Francisco International is usually April 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to San Francisco International Airport on Thursday, 17 July 2025.
Yes – the average flight time is 6 hours and 17 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Montreal to San Francisco International Airport (SFO): what you need to know

  • Planning your trip begins with figuring out where you'll fly out of in Montreal. Montreal-Pierre Elliott Trudeau International Airport (YUL) is the city's main airport, so explore your options for reserving a flight from Montreal to San Francisco International Airport (SFO) jetting off from here.

  • Expect to be in the air for 6 hours 16 minutes. That's the average duration of a direct flight from Montreal to San Francisco International Airport.

  • San Francisco International Airport is located in San Francisco. The city operates in the UTC-7 timezone and is 3 hours behind Montreal.

  • With 23 direct weekly flights between the two airports, Montreal-Pierre Elliott Trudeau International Airport (YUL) to San Francisco International Airport (SFO) is the busiest route. Air Canada operates the earliest flight at 08:00. If you prefer to get more out of your day before flying, the latest departure from YUL to SFO is with Air Canada at 20:00.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Get to the airport on time to catch your flight from Montreal to SFO.

  • Head to the airport even earlier during popular months like August. Aim for two hours before a domestic departure and up to four hours for international flights. Once you've checked in, you can use any extra time to relax or find something to eat.

Airports in Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • You can take a direct flight from Montreal to San Francisco International Airport (SFO) leaving from Montreal-Pierre Elliott Trudeau International Airport (YUL).

  • You'll have your choice of carriers that offer direct flights from Montreal to San Francisco International Airport leaving from YUL. Book your ticket with one of these:

  • YUL is around 26 kilometres from central Montreal. To work out how to get there, use Google Maps. This essential traveller tool will give you the fastest route and available public transport options.

  • Catching an early flight from Montreal to San Francisco International Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by choosing one of these stays close to Montreal-Pierre Elliott Trudeau International Airport:

About San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • San Francisco International Airport to central San Francisco is about 20 minutes in a car. It's approximately 21 kilometres away. Find out what options are available, such as car rentals, cabs or ride-sharing.

  • Getting there by public transport typically takes 47 minutes.

How to find the cheapest flights from Montreal to San Francisco International Airport (SFO)

  • Book a one-way ticket from Montreal to San Francisco International Airport from R 3,192 or travel return from just R 5,057. The prices shown are based on availability and could change when you book.

  • It's often best to book early if you're looking for cheap tickets from Montreal to SFO. That's because flight prices are based on demand, which tends to increase closer to the departure date.

  • Use the 'Whole month' search tool and compare the prices of tickets from Montreal to San Francisco International Airport across the entire month. The lowest fares are marked in green, making it easy to find a flight within your budget.

  • Set up a Price Alert for cheap tickets from Montreal to SFO. You don't need to check back in every day to find out if fares have dropped. We'll let you know as soon as there's a change in price.

  • Tailor your trip with filters. Select your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Montreal to San Francisco International Airport.

The best time to fly from Montreal to San Francisco International Airport (SFO)

  • It's time to figure out your dates for your flight from Montreal to San Francisco International Airport. August is the most popular month for a trip to San Francisco. If you want a more peaceful vibe, go in February.

  • Think about the type of weather that'll suit your plans for San Francisco. The warmest month is September. Lock in your flights from Montreal to SFO during then and you can expect temperatures of between 12ºC and 22ºC.

  • January has average temperatures of between 6ºC and 16ºC. Look for cheap flights from Montreal to San Francisco International Airport sometime then if you want to travel in cooler conditions.

More about San Francisco

  • Start your San Francisco trip off on the right foot by choosing the perfect place to stay. After booking your flight from Montreal to San Francisco International Airport, check out our selection of accommodation options including:

  • Golden Gate Bridge and Alcatraz Island are a couple of top attractions to put on your San Francisco itinerary. Continue your sightseeing adventures at Lombard Street.

Complete your San Francisco trip with a car rental

  • Choose one of our car rentals in San Francisco and explore on your own terms. Easily compare prices from trusted providers in one place after booking your hotel and cheap flights from Montreal to San Francisco International Airport.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.