Cheap flights from Montreal to Seattle-Tacoma International

Round-trip
Economy
Montreal (YMQ)
Seattle (SEA)
Depart
Return
Any month
Compare vs. Cheapflights |

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)

YMQ - SEA
Price
C$ 352 - C$ 664

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$ 352

From Montreal to Seattle-Tacoma International

One-way from

C$ 218

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$ 653.

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 26% on your trip compared to booking a flight at noon.

Cheap flights from Montreal to Seattle-Tacoma International in March, April 2021

26 Mar - 18 Apr
C$ 365pp
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
10 Apr - 19 Apr
C$ 369pp
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
10 Apr - 19 Apr
C$ 370pp
YUL
Montreal Pierre Elliott Trudeau Intl
Delta
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl

Montreal to Seattle-Tacoma International 2021 flight deals

26 Mar - 18 Apr
C$ 365pp
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
24 Dec - 5 Jan
C$ 366pp
YUL
Montreal Pierre Elliott Trudeau Intl
Iberia
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Iberia
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
4 Jun - 8 Jun
C$ 368pp
YUL
Montreal Pierre Elliott Trudeau Intl
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl

One-way flights to Seattle-Tacoma International from Montreal

8:50 a.m. - 6:16 p.m.
Delta
2 stops
12h 26m
YUL - SEA
Delta
C$ 219
Delta
9:30 a.m. - 11:05 a.m.
United Airlines
3 stops
28h 35m
YUL - SEA
United Airlines
C$ 334
CheapFlights

Related info for your journey

Flight FAQs

From Montreal to Seattle-Tacoma International

Can I find flights from Montreal to Seattle-Tacoma International for under C$ 380 on Cheapflights?

Yes, there are multiple flights from Montreal to Seattle-Tacoma International for under C$ 380. The cheapest flight booked recently is on American Airlines for just C$ 365, but on average you can expect to pay C$ 909.

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 and Delta 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.

Are there direct flights from Montreal to Seattle-Tacoma International for under C$ 380 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.

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$ 641, Delta can have you in Seattle-Tacoma International from Montreal in 10h 10m. 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$ 366 on this airline. An additional option worth looking into is Delta, starting at C$ 368. Users have found that American Airlines is 24% 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 Delta (C$ 219) and United Airlines (C$ 334).

Destination information for Seattle-Tacoma International

Today's exchange rate
C$ 1 = $0.79

Airports servicing Montreal

Saint-Hubert Airport (YHU)

Airports servicing Seattle

Top 6 airlines flying from Montreal to Seattle-Tacoma International

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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