Cheap flights from Montreal to Seattle-Tacoma International

Round-trip
Economy
Montreal (YMQ)
Seattle (SEA)
Depart
Return
Any month
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The best prices from Montreal to Seattle-Tacoma International are usually found in April or January, booked 43 days in advance, depart on a Wednesday or Tuesday and return on a Monday

How to find the cheapest flight from
Montreal (YMQ) to Seattle-Tacoma International (SEA)

All the information you need to plan the best YMQ to SEA flight in 2021: compare Montreal to Seattle-Tacoma International flight prices with the expected peak season, weather and rainfall in Seattle-Tacoma International.
YMQ - SEA
Price
C$ 345 - C$ 650

Popular in

December

High demand for flights, 27% potential price rise

Cheapest in

April

Best time to find cheap flights, 28% potential price drop

Round-trip from

C$ 345

From Montreal to Seattle-Tacoma International

One-way from

C$ 226

One-way flight from Montreal to Seattle-Tacoma International

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Montreal to Seattle-Tacoma International?

Flights from Montreal to Seattle-Tacoma International are generally found to be more expensive on Thursday. This shouldn't discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle-Tacoma International.

How far in advance should I book a flight from Montreal to Seattle-Tacoma International?

Find a great deal and save up to 14% by booking at least 46 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Montreal to Seattle-Tacoma International within the next two weeks, with the cheapest ticket starting at C$ 639.

When is the cheapest time to fly from Montreal to Seattle-Tacoma International (YMQ - SEA)?

A simple way to save on the total cost of your ticket is to fly from Montreal to Seattle-Tacoma International in the evening. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight at noon.

Cheap flights from Montreal to Seattle-Tacoma International in June, July 2021

The best prices found for YMQ to SEA flights for June, July
15 Jul - 27 Jul
C$ 388pp
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
25 Jun - 14 Jul
C$ 395pp
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
15 Jul - 26 Jul
C$ 401pp
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl

Montreal to Seattle-Tacoma International 2021 flight deals

Cheap flights to Seattle-Tacoma International from Montreal found for this year
13 Sep - 20 Sep
C$ 385pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl
3 Sep - 12 Sep
C$ 388pp
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
11 Aug - 26 Aug
C$ 391pp
YUL
Montreal Pierre Elliott Trudeau Intl
Air Canada
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl

Last minute flights from Montreal to Seattle-Tacoma International

Late deals on round-trip flights to Seattle-Tacoma International from Montreal, departing today and this week
27 Jun - 13 Jul
C$ 438pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl
27 Jun - 16 Jul
C$ 505pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
28 Jun - 13 Jul
C$ 529pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl

One-way flights to Seattle-Tacoma International from Montreal

The cheapest one-way flights from Montreal to Seattle-Tacoma International
3:50 a.m. - 10:15 a.m.
Air Canada
1 stop
9h 25m
YUL - SEA
Air Canada
C$ 226
Air Canada
5:10 a.m. - 10:35 a.m.
Air Canada
1 stop
8h 25m
YUL - SEA
Air Canada
C$ 233
3:50 a.m. - 10:15 a.m.
Air Canada
1 stop
9h 25m
YUL - SEA
Air Canada
C$ 327

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Montreal</span> to <span class="emphasized">Seattle-Tacoma International</span> flights.

Flight FAQs

From Montreal to Seattle-Tacoma International

What airport do you fly into for flights to Seattle from Montreal?

Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Seattle from Montreal. Booking flights from Montreal to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Montreal from 6 different airlines.

What safety measures are being taken by airlines flying from Montreal to Seattle/Tacoma Intl to control the spread of COVID-19?

New policies can now be found on Alaska Airlines to help keep travellers safe while flying. New policies for travellers booking flights from Montreal to Seattle/Tacoma Intl include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially-distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Montreal to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Montreal to Seattle/Tacoma Intl that may be offering flexible cancellation policies are WestJet, Air Canada, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Montreal to Seattle-Tacoma International for under C$ 496 on Cheapflights?

Yes, there are multiple flights from Montreal to Seattle-Tacoma International for under C$ 496. The cheapest flight booked recently is on American Airlines for just C$ 385, but on average you can expect to pay C$ 401.

Are there direct flights from Montreal to Seattle-Tacoma International for under C$ 372 on Cheapflights?

There are no direct flights from Montreal to Seattle-Tacoma International, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Montreal to Seattle-Tacoma International for under C$ 496?

There are currently 14+ open flights from Montreal to Seattle-Tacoma International within the next 7 days for less than C$ 496.

Is Montreal weather warmer or cooler than Seattle?

Our data indicates that the weather will be 27 °C on average in the month of July. The temperature in Seattle is typically colder than in Montreal. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Montreal to Seattle-Tacoma International?

For as low as C$ 389, Air Canada can have you in Seattle-Tacoma International from Montreal in 7h 50m. This flight may include one or multiple stops.

What are the cheapest airlines to flying from Montreal to Seattle-Tacoma International round-trip?

Our cheapest airline available from Montreal to Seattle-Tacoma International is American Airlines. Our recent data shows that you can find tickets from as low as C$ 385 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at C$ 389 and C$ 398 round-trip. Users have found that American Airlines is 19% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Montreal to Seattle-Tacoma International one-way?

The cheapest airlines for a one-way flight from Montreal to Seattle-Tacoma International are Air Canada (C$ 226) and American Airlines (C$ 256).

Destination information for Seattle-Tacoma International

Things to know before you go - useful duration and weather info for your trip from Montreal to Seattle-Tacoma International.
Today's exchange rate
C$ 1 = $0.81

Airports servicing Montreal

Montreal Pierre Elliott Trudeau Intl (YUL)
Montreal St Hubert (YHU)

Airports servicing Seattle

Top 6 airlines flying from Montreal to Seattle-Tacoma International

The chart below displays the airlines Cheapflights users travelling from Montreal to Seattle-Tacoma International choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
WestJet
C$ 197 C$ 367 No cancel fee 60%
Search WestJet flights
Alaska Airlines
C$ 251 C$ 369 No cancel fee 75%
Search Alaska Airlines flights
American Airlines
C$ 180 C$ 397 No cancel fee 71%
Search American Airlines flights
United Airlines
C$ 189 C$ 446 No cancel fee 69%
Search United Airlines flights
Air Canada
C$ 224 C$ 447 No cancel fee 67%
Search Air Canada flights
Delta
C$ 207 C$ 478 No cancel fee N/A
Search Delta flights
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