Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Seattle to Montreal
The cheapest flights right now
Seattle – Montreal
Outbound – Nov 13, 2026
1 stop
7h 20m YVR
Return – Nov 19, 2026
1 stop
9h 22m ORD
$598
2 days ago
Seattle – Montreal
Outbound – Nov 13, 2026
1 stop
7h 20m YVR
Return – Nov 19, 2026
1 stop
8h 52m YVR
$576
2 days ago
Seattle – Montreal
Outbound – Nov 12, 2026
1 stop
7h 20m YVR
Return – Nov 18, 2026
1 stop
9h 22m ORD
$668
today
Seattle – Montreal
Outbound – Nov 12, 2026
1 stop
8h 39m IAD
Return – Nov 18, 2026
1 stop
9h 19m ORD
$695
today
* 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
$298
Average price of a round trip
$365
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
11h7
A flight from Seattle to Montreal takes on average 11h7.
Best time
February
According to user searches, the ideal month to go to Montreal is February.
Tips for finding a cheap flight from Seattle to Montreal
Check out our tips for booking your flight to Montreal (Canada) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is February, with an average flight ticket price of $334 (calculation over the last two years). The most touristic season corresponds to the months of October, November and December.
For the cheapest flights, it is advisable to buy your ticket at least 31 days before the departure date.
The airline offering the cheapest flight tickets is WestJet. A ticket from the airline WestJet to Montreal costs on average $358.
The airlines that offer the most flights are .
Price of flight tickets from Seattle to Montreal
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $298 to $536
- The average price of a flight ticket is about $365
- Prices are lowest for stays in the month of February
- The month in which booking a ticket is cheaper is: October
info departure city :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :
Seattle is a city in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {fromLocalTime}, the temperature is on average 15°C, with a minimum of 10°C and a maximum of 23°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
destination info :
Montreal, Canada
airports :
Mirabel International Airport (YMX)
Montreal-Trudeau International Airport (YUL)
Saint-Hubert Airport (YHU)
local time :
Montreal is in the country Canada, the time zone is [[timezone]]. In Montreal, it is currently {toLocalTime}, 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
Useful info about Montreal
What is the least touristic period to go to Montreal?
If you want to visit Montreal during the least touristic period, choose the month of February.
What is the most popular time to travel to Montreal?
In Montreal, 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 Seattle to Montreal?
According to our data, it is recommended to book your flight 31 days before your departure. If you book your flight ticket 5 weeks before your departure, you may find a price below average. The cheapest day to book a flight from Seattle to Montreal is Saturday.
What are the arrival and destination airports when traveling between Seattle and Montreal?
When you leave, you can leave from Seattle-Tacoma, and you will arrive at Montreal-Trudeau or Saint-Hubert.
How to reach Seattle airport from the city centre?
The airport Kenmore Air Harbor Spb. is located 3 km, Seattle-Tacoma is located 16 km, Renton is located 16 km or King County is located 8 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 Seattle to Montreal?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Seattle and Montreal?
In summer, the average temperature is 20°C in Montreal and 18°C in Seattle. The average rainfall in summer is 130 mm in Montreal and 38 mm in Seattle. In summer, it is warmer in Montreal and it rains less in Seattle. In winter, it is colder in Seattle and it rains more in Seattle.
