Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle from $200
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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WestJet flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle
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Air Canada flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle
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How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to Seattle
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 cheapest month to fly to Seattle?
In general, October is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $461. If you don’t want to visit Seattle in October, then you should wait until August to fly from Montreal Pierre Elliott Trudeau Intl Airport, when ticket prices are also cheap, with an average price of $468.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Montreal Pierre Elliott Trudeau Intl Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $294. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Montreal Pierre Elliott Trudeau Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $535.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Montreal Pierre Elliott Trudeau Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $369 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $503. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl flight route?
Fly from Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl for the best Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $505 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Montreal Pierre Elliott Trudeau Intl Airport for as low as $360 on momondo.
What cabin class options are available on Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl flights?
There are 3 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Seattle flights?
You could potentially save up to 9% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to Seattle flight.
How have Montreal Pierre Elliott Trudeau Intl Airport to Seattle flight prices changed over time?
As of July 2025, prices for Montreal Pierre Elliott Trudeau Intl Airport to Seattle flights are approximately 16% cheaper when compared to flights at the same time last year.
How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to Seattle on average per day?
As of July 2025, 2 flights take off from Montreal Pierre Elliott Trudeau Intl Airport and land in Seattle each day. The most common flight departure time for this route is 5:00PM, with 100% of daily flights taking off in the afternoon.
How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to Seattle on average per week?
As of July 2025, there are 14 flights per week flying from Montreal Pierre Elliott Trudeau Intl Airport to Seattle. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle
Cheap Montreal Pierre Elliott Trudeau Intl Airport to Seattle (YUL to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle
How far is Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl by plane?
A flight from Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl will travel around 2274.5 mi. In terms of flight time, this usually takes a little over 5h 46m.
When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle/Tacoma Intl Airport?
As of July 2025, there are 2 operators available to choose from for flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to Seattle/Tacoma Intl Airport?
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 Montreal Pierre Elliott Trudeau Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montreal Pierre Elliott Trudeau Intl Airport to Seattle?
Based on momondo bookings for flights between Montreal Pierre Elliott Trudeau Intl Airport and Seattle, the leading plane model is Airbus A220-300, making up 97.73% of the total bookings. Other popular models include Boeing 737 MAX 8 with 0.91%, Boeing 737 MAX 9 with 0.91%, and Airbus A340-300 with 0.45%.
What is the most popular airline from Montreal Pierre Elliott Trudeau Intl Airport to Seattle?
momondo data reveals that the most frequently booked airline on the route from Montreal Pierre Elliott Trudeau Intl Airport to Seattle is Air Canada, representing 77% of all bookings. The subsequent popular airline is WestJet at 23%.
Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Seattle
Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $270 | Free Cancellation | Rating 7.2 2,917 reviews | |||
| PriceFrom $358 | Free Cancellation | Rating 7.1 9,681 reviews |
Air Canada Flights From Montreal Pierre Elliott Trudeau Intl Airport to Seattle
Air Canada is one of the most popular airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Seattle, operating 7 flights/week on average for this route. A good Air Canada flight deal for Montreal Pierre Elliott Trudeau Intl Airport to Seattle starts from $358 round-trip, up to an average price of $514. Our users have rated Air Canada at 7.1/10.
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Why should I use momondo to find a flight deal from Montreal to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montreal to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Montreal to Seattle with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Montreal to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from Montreal to Seattle?
momondo helps you find the best flight between Montreal and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Montreal to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Montreal to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.