Air Canada Toronto to Seattle Flights

Cheapflightsplus.com will find cheap Air Canada flights from Toronto to Seattle. Compare airline ticket prices and book air tickets starting from $254 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Air Canada, arrivals and departure details below.

Find Cheap Airfare Toronto (ON) — Seattle (WA) by Air Canada

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in july: one-way - $254, two-way – $436.
Direct flights
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
10:25 am — 7:31 pm
10:25 am — 11:43 am AC7958 Air Canada
Toronto — Montreal
5h 4m stop
5:45 pm — 8:41 pm AC515 Air Canada
Montreal — Seattle
12h 6m
including layover
Find flight
from$254
10:50 pm — 11:37 am
+1 day
10:50 pm — 1:05 am AC159 Air Canada
Toronto — Calgary
5h 20m stop
6:25 am — 7:00 am AC201 Air Canada
Calgary — Vancouver
3h 30m stop
10:30 am — 11:37 am AS2185 Alaska Airlines
Vancouver — Seattle
15h 47m
including layover
Find flight
from$540
11:20 pm — 11:42 pm
+1 day
11:20 pm — 0:41 am AC432 Air Canada
Toronto — Montreal
7h 24m stop
8:05 am — 10:21 am AC1073 Air Canada
Montreal — Denver
11h 15m stop
9:36 pm — 11:42 pm F94545 Frontier Airlines
Denver — Seattle
27h 22m
including layover
Find flight
from$376
11:20 pm — 2:48 pm
+1 day
11:20 pm — 0:41 am AC432 Air Canada
Toronto — Montreal
7h 24m stop
8:05 am — 10:27 am AC1073 Air Canada
Montreal — Denver
2h 28m stop
12:56 pm — 2:55 pm HA4869 Hawaiian Airlines
Denver — Seattle
18h 28m
including layover
Find flight
from$393
11:20 pm — 7:50 pm
+1 day
11:20 pm — 0:41 am AC432 Air Canada
Toronto — Montreal
8h 19m stop
9:00 am — 12:14 pm AC1634 Air Canada
Montreal — Orlando
4h 25m stop
4:39 pm — 7:50 pm HA6238 Hawaiian Airlines
Orlando — Seattle
23h 30m
including layover
Find flight
from$434
11:20 pm — 4:54 pm
+1 day
11:20 pm — 0:41 am AC432 Air Canada
Toronto — Montreal
7h 24m stop
8:05 am — 11:12 am AC775 Air Canada
Montreal — Los Angeles
3h 8m stop
3:05 pm — 5:56 pm HA6197 Hawaiian Airlines
Los Angeles — Seattle
20h 34m
including layover
Find flight
from$462
11:20 pm — 10:30 am
+2 days
11:20 pm — 0:41 am AC432 Air Canada
Toronto — Montreal
8h 19m stop
9:00 am — 12:14 pm AC1634 Air Canada
Montreal — Orlando
19h 6m stop
7:20 am — 10:30 am HA6162 Hawaiian Airlines
Orlando — Seattle
38h 10m
including layover
Find flight
from$477
11:20 pm — 10:00 pm
+1 day
11:20 pm — 0:41 am AC432 Air Canada
Toronto — Montreal
8h 49m stop
9:30 am — 1:18 pm AC1650 Air Canada
Montreal — Miami
5h 9m stop
6:21 pm — 10:00 pm HA6175 Hawaiian Airlines
Miami — Seattle
25h 40m
including layover
Find flight
from$594
12:00 pm — 6:36 pm
11:30 am — 1:34 pm AC111 Air Canada
Toronto — Vancouver
3h 26m stop
5:30 pm — 6:33 pm AC8806 Air Canada
Vancouver — Seattle
9h 36m
including layover
Find flight
from$282
7:25 am — 8:41 pm
7:25 am — 8:43 am AC7952 Air Canada
Toronto — Montreal
9h 2m stop
5:45 pm — 8:41 pm AC515 Air Canada
Montreal — Seattle
16h 16m
including layover
Find flight
from$271
7:30 pm — 9:21 am
+1 day
7:30 pm — 9:34 pm AC127 Air Canada
Toronto — Vancouver
10h 41m stop
8:15 am — 9:21 am AC8798 Air Canada
Vancouver — Seattle
16h 51m
including layover
Find flight
from$282
8:00 am — 8:41 pm
8:00 am — 9:21 am AC402 Air Canada
Toronto — Montreal
8h 24m stop
5:45 pm — 8:41 pm AC515 Air Canada
Montreal — Seattle
15h 41m
including layover
Find flight
from$278
8:15 am — 12:34 pm
8:15 am — 9:09 am AC503 Air Canada
Toronto — Chicago
51m stop
10:00 am — 12:34 pm AS329 Alaska Airlines
Chicago — Seattle
7h 19m
including layover
Find flight
from$458
8:15 am — 12:34 pm
8:15 am — 9:09 am AC503 Air Canada
Toronto — Chicago
51m stop
10:00 am — 12:34 pm HA6295 Hawaiian Airlines
Chicago — Seattle
7h 19m
including layover
Find flight
from$724
9:30 am — 4:15 pm
9:30 am — 10:43 am AC8717 Air Canada
Toronto — Minneapolis
3h 42m stop
2:25 pm — 4:15 pm HA6267 Hawaiian Airlines
Minneapolis — Seattle
9h 45m
including layover
Find flight
from$752
*Departure and arrival times are local. Last updated on 07/14/2025

Flight Information

There are 16 flights by Air Canada from Toronto to Seattle every week with departures from Pearson International, Toronto Island, Buttonville Municipal. All flights arrive at Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB.

Departures start from 10:25 am to 9:30 am. Nonstop flight is 7h 19m. The time difference between Toronto and Seattle is 3h.

  • The fastest flight 7h 19m
  • Average flight time 16h 16m
  • The earliest flight 10:25 am
  • The latest flight 9:30 am
  • Distance 2067 ml

The cheapest months for traveling to Seattle are august (from 254 $), september (from 282 $), july (from 290 $).

The most expensive and popular months are may (from 531 $), june (from 318 $), october (from 308 $).

The cheapest flight by Air Canada that our users were able to find is $254. This airfare is economy class on one-way AC7958 flight for August 28, 2025 leaving Toronto Island in Toronto at 10:25 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Air Canada there are other 7 airline carriers between Toronto and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Toronto to Seattle.

Nonstop flights

There are 2 direct flights every day from Toronto. Airlines and fares are below:

  • AS - Alaska Airlines
    from $203
    Find
  • UA - United Airlines
    from $276
    Find
See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

  • F8 - Freedom Airlines
    from $230
    Find
  • AS - Alaska Airlines
    from $329
    Find
  • PD - Porter Airlines
    from $177
    Find
  • SY - Sun Country Airlines
    from $392
    Find
  • WS - WestJet
    from $187
    Find
  • UA - United Airlines
    from $228
    Find
  • TS - Air Transat
    from $222
    Find
See more connecting flights

How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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