Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Montreal to San Francisco
The cheapest flights right now
Montreal – San Francisco
Outbound – Nov 5, 2026
1 stop
8h 59m YYZ
Return – Nov 11, 2026
1 stop
8h 0m YYZ
$321
2 days ago
Montreal – San Francisco
Outbound – Nov 5, 2026
1 stop
8h 59m YYZ
Return – Nov 11, 2026
1 stop
7h 47m YYZ
$335
2 days ago
Montreal – San Francisco
Outbound – Oct 31, 2026
1 stop
9h 0m YYZ
Return – Nov 6, 2026
1 stop
8h 0m YYZ
$329
yesterday
Montreal – San Francisco
Outbound – Nov 5, 2026
1 stop
8h 59m YYZ
Return – Nov 11, 2026
1 stop
8h 0m YYZ
$373
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$232
Average price of a round trip
$429
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
6h11
A flight from Montreal to San Francisco takes on average 6h11.
Best time
November
According to user searches, the ideal month to go to San Francisco is November.
Tips for finding a cheap flight from Montreal to San Francisco
Check out our tips for booking your flight to San Francisco (USA) from Montreal (Canada) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is January, with an average flight ticket price of $232 (calculation over the last two years). The most touristic season corresponds to the months of October, September and October.
For the cheapest flights, it is advisable to buy your ticket at least 128 days before the departure date.
The airline offering the cheapest flight tickets is WestJet. A ticket from the airline WestJet to San Francisco costs on average $435.
The airlines that offer the most flights are Air Canada, United Airlines and Air Canada.
info departure city :
Montreal, Canada
airports :
Mirabel International Airport (YMX)
Montreal-Trudeau International Airport (YUL)
Saint-Hubert Airport (YHU)
local time :
Montreal is a city in the country Canada, the time zone is [[timezone]]. In Montreal, it is currently {fromLocalTime}, the temperature is on average 9°C, with a minimum of 6°C and a maximum of 12°C.
The city of Montreal (YMQ) has 3 airport(s): Mirabel, Montreal-Trudeau and Saint-Hubert
destination info :
San Francisco, USA
airport :
San Francisco International Airport (SFO)
local time :
San Francisco is in the country USA, the time zone is [[timezone]]. In San Francisco, it is currently {toLocalTime}, the temperature is on average 18°C, with a minimum of 16°C and a maximum of 24°C.
The city of San Francisco has 1 airport(s): San Francisco
Useful info about San Francisco
What is the least touristic period to go to San Francisco?
If you want to visit San Francisco during the least touristic period, choose the month of November.
What is the most popular time to travel to San Francisco?
In San Francisco, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Montreal to San Francisco?
According to our data, it is recommended to book your flight 128 days before your departure. If you book your flight ticket 19 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Montreal to San Francisco is Sunday.
What are the arrival and destination airports when traveling between Montreal and San Francisco?
When you leave, you can leave from Montreal-Trudeau or Saint-Hubert, and you will arrive at San Francisco.
How to reach Montreal airport from the city centre?
The airport Mirabel is located 48 km, Montreal-Trudeau is located 18 km or Saint-Hubert is located 14 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Montreal to San Francisco?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Montreal and San Francisco?
In summer, the average temperature is 17°C in San Francisco and 20°C in Montreal. The average rainfall in summer is 2 mm in San Francisco and 130 mm in Montreal. In summer, it is warmer in Montreal and it rains less in San Francisco. In winter, it is colder in San Francisco and it rains more in San Francisco.
