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How to get the cheapest flight ticket from Seattle to Montreal
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Seattle and Montreal?
What is the cheapest month to fly to Montreal?
The cheapest month to fly to Montreal from Seattle is in May. Flight prices, which tend to average around C$ 613, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Montreal from Seattle during September instead. Flights to Montreal in September, while not as cheap as those in May, still average around C$ 725.
What is the cheapest day to depart on your flight to Montreal?
Our data shows that Wednesday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 938. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Montreal for around C$ 1,613.
What is the cheapest time of day to depart on your flight to Montreal?
Our data shows that the cheapest Seattle to Montreal flights are usually those with departure times in the evening. Our users have found flights to Montreal in the evening for as low as C$ 311. Flights in the morning are often more expensive with an average ticket price of C$ 1,226.
What is the cheapest Seattle/Tacoma Intl to Montreal flight route?
Fly from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl for the best Seattle/Tacoma Intl - Montreal flight prices
How far in advance should I book a flight to Montreal?
You are more likely to see cheaper flights to Montreal from Seattle when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 759 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from Seattle for as low as C$ 457 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Montreal flights?
There are 2 cabin classes available to choose from on Seattle/Tacoma Intl to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Seattle to Montreal flights?
You could potentially save up to 20% on your flight if you consider stops on a Seattle to Montreal flight.
How have Seattle to Montreal flight prices changed over time?
As of June 2025, prices for Seattle to Montreal flights are approximately 30% cheaper when compared to flights at the same time last year.
How many flights depart from Seattle to Montreal on average per day?
1 flights are operational daily from Seattle to Montreal as of June 2025. The most popular departure time for this route is 7:00a.m., with 100% of flights per day taking off at noon.
How many flights depart from Seattle to Montreal on average per week?
As of June 2025, there are 10 flights per week flying from Seattle to Montreal. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.
When to book flights from Seattle to Montreal
Cheap Seattle to Montreal (SEA to YMQ) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Montreal
How far is Seattle/Tacoma Intl to Montreal by plane?
The straight-line distance from Seattle/Tacoma Intl to Montreal is 3672.5 km. Flights usually cover this in 5h 09m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Montreal?
Prices for flights from Seattle/Tacoma Intl Airport to Montreal refresh daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Montreal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Montreal.
What documentation or ID do you need to fly to Montreal?
The travel and health documents required for your trip to Montreal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Montreal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Seattle to Montreal?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Montreal is Airbus A220-300, representing 74.85% of all bookings. The subsequent popular models are Airbus A330-200 at 3.22%, Boeing 777-300ER at 2.92%, and Airbus A330-900neo at 2.63%.
What is the most popular airline from Seattle to Montreal?
momondo data reveals that the most frequently booked airline on the route from Seattle to Montreal is Air Canada, representing 100% of all bookings.
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Montreal?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Montreal from Seattle.
Can I find flights from Seattle to Montreal with flexible booking policies on momondo?
Flights from Seattle to Montreal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Montreal?
momondo provides multiple filters to help you find the best flight to Montreal from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seattle to Montreal right now. Can momondo alert me if prices change?
Price alerts on flights to Montreal from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.