United Airlines Toronto to Seattle Flights

Return flight: Seattle – Toronto

Cheapflightsplus.com will find cheap United Airlines flights from Toronto to Seattle. Compare airline ticket prices and book air tickets starting from $178 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Toronto (ON) — Seattle (WA) by United Airlines

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 december: one-way - $178, two-way – $305.
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Below is a detailed 2024 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
7:05 pm — 9:30 pm
7:05 pm — 9:30 pm UA8525 United Airlines
Toronto — Seattle
5h 25m
Find flight
from$178
10:45 am — 10:00 pm
10:45 am — 12:24 pm UA3648 United Airlines
Toronto — Newark
6h 16m stop
7:10 pm — 10:37 pm UA2044 United Airlines
Newark — Seattle
14h 15m
including layover
Find flight
from$185
12:45 pm — 10:00 pm
12:45 pm — 2:30 pm UA3649 United Airlines
Toronto — Newark
4h 11m stop
7:10 pm — 10:37 pm UA2044 United Airlines
Newark — Seattle
12h 15m
including layover
Find flight
from$185
1:20 pm — 10:30 pm
1:20 pm — 3:46 pm UA8447 United Airlines
Toronto — Los Angeles
3h 44m stop
7:30 pm — 10:30 pm UA1657 United Airlines
Los Angeles — Seattle
12h 10m
including layover
Find flight
from$366
2:00 pm — 10:00 pm
2:00 pm — 3:36 pm UA8660 United Airlines
Toronto — Newark
2h 52m stop
7:10 pm — 10:37 pm UA2044 United Airlines
Newark — Seattle
11h
including layover
Find flight
from$185
2:45 pm — 10:45 pm
2:45 pm — 4:38 pm UA8163 United Airlines
Toronto — Denver
4h 6m stop
9:05 pm — 11:11 pm UA2651 United Airlines
Denver — Seattle
11h
including layover
Find flight
from$185
3:00 pm — 10:00 pm
3:00 pm — 4:41 pm UA3705 United Airlines
Toronto — Newark
1h 59m stop
6:40 pm — 10:00 pm UA2044 United Airlines
Newark — Seattle
10h
including layover
Find flight
from$185
3:30 pm — 10:46 pm
3:30 pm — 4:30 pm UA2364 United Airlines
Toronto — Chicago
3h 26m stop
7:55 pm — 10:46 pm UA2850 United Airlines
Chicago — Seattle
10h 16m
including layover
Find flight
from$298
4:10 pm — 10:45 pm
4:10 pm — 6:06 pm UA568 United Airlines
Toronto — Denver
2h 29m stop
9:05 pm — 11:11 pm UA2651 United Airlines
Denver — Seattle
9h 35m
including layover
Find flight
from$185
5:20 pm — 0:55 am
+1 day
5:20 pm — 8:07 pm UA8272 United Airlines
Toronto — San Francisco
2h 28m stop
10:35 pm — 0:55 am UA1743 United Airlines
San Francisco — Seattle
10h 35m
including layover
Find flight
from$187
5:30 pm — 10:42 pm
5:30 pm — 6:37 pm UA3542 United Airlines
Toronto — Chicago
1h 20m stop
7:55 pm — 10:46 pm UA2211 United Airlines
Chicago — Seattle
8h 12m
including layover
Find flight
from$329
6:10 am — 10:50 pm
6:10 am — 9:03 am UA1345 United Airlines
Toronto — Houston
10h 47m stop
7:53 pm — 10:53 pm UA2456 United Airlines
Houston — Seattle
19h 40m
including layover
Find flight
from$183
6:30 am — 10:00 pm
6:30 am — 8:06 am UA8714 United Airlines
Toronto — Newark
10h 30m stop
7:10 pm — 10:37 pm UA2044 United Airlines
Newark — Seattle
18h 30m
including layover
Find flight
from$184
7:15 am — 10:00 pm
7:15 am — 8:59 am UA3607 United Airlines
Toronto — Newark
9h 41m stop
6:40 pm — 10:00 pm UA2044 United Airlines
Newark — Seattle
17h 45m
including layover
Find flight
from$184
8:00 am — 10:30 pm
8:00 am — 10:32 am UA8337 United Airlines
Toronto — Los Angeles
8h 58m stop
7:30 pm — 10:30 pm UA1657 United Airlines
Los Angeles — Seattle
17h 30m
including layover
Find flight
from$184
8:05 am — 0:50 am
+1 day
8:05 am — 10:52 am UA8698 United Airlines
Toronto — San Francisco
11h 43m stop
10:35 pm — 0:50 am UA1971 United Airlines
San Francisco — Seattle
19h 45m
including layover
Find flight
from$184
9:10 pm — 11:16 am
+1 day
9:10 pm — 10:50 pm UA8202 United Airlines
Toronto — Newark
9h 9m stop
7:59 am — 11:16 am UA1330 United Airlines
Newark — Seattle
17h 6m
including layover
Find flight
from$184
9:30 am — 10:00 pm
9:30 am — 11:13 am UA3701 United Airlines
Toronto — Newark
7h 27m stop
7:10 pm — 10:37 pm UA2044 United Airlines
Newark — Seattle
15h 30m
including layover
Find flight
from$185
11:00 am — 10:30 pm
11:00 am — 11:59 am UA1063 United Airlines
Toronto — Chicago
1h 1m stop
1:00 pm — 3:32 pm UA2657 United Airlines
Chicago — Los Angeles
3h 58m stop
7:30 pm — 10:30 pm UA1657 United Airlines
Los Angeles — Seattle
14h 30m
including layover
Find flight
from$184
11:00 am — 10:30 pm
11:00 am — 11:59 am UA1063 United Airlines
Toronto — Chicago
2h 1m stop
2:00 pm — 4:38 pm UA2661 United Airlines
Chicago — Los Angeles
2h 52m stop
7:30 pm — 10:30 pm UA1657 United Airlines
Los Angeles — Seattle
14h 30m
including layover
Find flight
from$184
12:20 pm — 10:30 pm
12:20 pm — 1:11 pm UA8694 United Airlines
Toronto — Chicago
49m stop
2:00 pm — 4:38 pm UA2661 United Airlines
Chicago — Los Angeles
2h 52m stop
7:30 pm — 10:30 pm UA1657 United Airlines
Los Angeles — Seattle
13h 10m
including layover
Find flight
from$184
4:10 pm — 11:20 am
+1 day
4:10 pm — 6:12 pm UA568 United Airlines
Toronto — Denver
11h 48m stop
6:00 am — 7:50 am UA573 United Airlines
Denver — San Francisco
1h 10m stop
9:00 am — 11:20 am UA573 United Airlines
San Francisco — Seattle
22h 10m
including layover
Find flight
from$184
*Departure and arrival times are local. Last updated on 11/21/2024

Flight Information

There is 1 flight by United Airlines 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 10:45 am to 9:30 am. Nonstop flight is 5h 25m. The time difference between Toronto and Seattle is 3h.

  • The fastest flight 5h 25m
  • Average flight time 5h 25m
  • The earliest flight 10:45 am
  • The latest flight 9:30 am
  • Distance 2067 ml

The cheapest months for traveling to Seattle are december (from 178 $), january (from 179 $), february (from 179 $).

The most expensive and popular months are november (from 381 $), february (from 179 $), january (from 179 $).

The cheapest flight by United Airlines that our users were able to find is $178. This airfare is economy class on one-way UA8525 flight for December 14, 2024 leaving Pearson International in Toronto at 7:05 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines 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:

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Connecting Flights

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

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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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