Cheap Flights from Toronto, ON to Seattle, WA from $175

One way Round trip

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On Cheapflightsplus.com you will find 1 direct and 105 connecting flights from Toronto to Seattle. You can compare airfare deals from 7 airlines and multiple travel sites from $175, book and save on cheap plane tickets and last minute offers. Also check out YTO-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Toronto to Seattle Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $175 (one-way), $300 (round-trip).

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Best Flights from Toronto to Seattle Today

Take a look at the list of non stop flights and flights with layovers from Toronto to Seattle with the lowest price of $175. The fastest direct flight takes 5h 25m and the fastest connecting – 7h 19m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $198 Find flight	19:05 Toronto Pearson International	21:30 Seattle Seattle-Tacoma Intl	5h 25m	United Airlines	UA8525
from $175 Find flight	07:55 Toronto Pearson International	14:21 Seattle Seattle-Tacoma Intl	9h 26m layover 2h 55m - Calgary	WestJet	WS649 WS1552
from $204 Find flight	06:30 Toronto Pearson International	14:21 Seattle Seattle-Tacoma Intl	10h 51m layover 4h 20m - Calgary	WestJet	WS653 WS1552
from $204 Find flight	22:35 Toronto Pearson International	14:34+1 день Seattle Seattle-Tacoma Intl	18h 59m layover 12h 28m - Calgary	WestJet	WS679 WS3612
from $204 Find flight	20:00 Toronto Pearson International	14:34+1 день Seattle Seattle-Tacoma Intl	21h 34m layover 15h 3m - Calgary	WestJet	WS675 WS3612
from $204 Find flight	18:30 Toronto Pearson International	14:34+1 день Seattle Seattle-Tacoma Intl	23h 4m layover 16h 33m - Calgary	WestJet	WS671 WS3612
from $204 Find flight	16:00 Toronto Pearson International	14:34+1 день Seattle Seattle-Tacoma Intl	25h 34m layover 19h 3m - Calgary	WestJet	WS667 WS3612
from $207 Find flight	16:10 Toronto Pearson International	22:45 Seattle Seattle-Tacoma Intl	9h 35m layover 2h 29m - Denver	United Airlines	UA568 UA2651
from $207 Find flight	14:45 Toronto Pearson International	22:45 Seattle Seattle-Tacoma Intl	11h 0m layover 4h 6m - Denver	United Airlines	UA8163 UA2651
from $209 Find flight	18:55 Toronto Pearson International	00:55+1 день Seattle Seattle-Tacoma Intl	9h 0m layover 0h 53m - San Francisco	United Airlines	UA8433 UA1743
from $209 Find flight	18:00 Toronto Pearson International	00:55+1 день Seattle Seattle-Tacoma Intl	9h 55m layover 1h 35m - San Francisco	United Airlines	UA2462 UA1743
from $209 Find flight	17:20 Toronto Pearson International	00:55+1 день Seattle Seattle-Tacoma Intl	10h 35m layover 2h 28m - San Francisco	United Airlines	UA8272 UA1743
from $209 Find flight	08:05 Toronto Pearson International	00:55+1 день Seattle Seattle-Tacoma Intl	19h 50m layover 11h 43m - San Francisco	United Airlines	UA8698 UA1743
from $225 Find flight	20:00 Toronto Pearson International	10:37+1 день Seattle Seattle-Tacoma Intl	17h 37m layover 9h 37m - Las Vegas	WestJet	WS1118 AS380
from $209 Find flight	14:45 Toronto Pearson International	00:55+1 день Seattle Seattle-Tacoma Intl	13h 10m layover 1h 53m - Washington D.C. 1h 15m - San Francisco	United Airlines	UA3637 UA1666 UA1743
from $239 Find flight	22:05 Toronto Pearson International	14:34+1 день Seattle Seattle-Tacoma Intl	19h 29m layover 6h 0m - Edmonton 5h 56m - Calgary	WestJet	WS445 WS238 WS3612

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on March 01, 2025

Flight Schedule Toronto (Ontario) to Seattle (Washington)

Full flight schedule will help you in detecting at what time planes fly from Toronto to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
19:05 — 21:30	19:05 — 21:30 UA8525 United Airlines Toronto — Seattle	5h 25m	Find flight from$198
06:30 — 14:21	06:30 — 09:06 WS653 WestJet Toronto — Calgary 4h 20m stop 13:20 — 14:21 WS1552 WestJet Calgary — Seattle	10h 51m including layover	Find flight from$204
07:55 — 14:21	07:55 — 10:30 WS649 WestJet Toronto — Calgary 2h 55m stop 13:20 — 14:21 WS1552 WestJet Calgary — Seattle	9h 26m including layover	Find flight from$175
08:05 — 00:55 +1 day	08:05 — 10:52 UA8698 United Airlines Toronto — San Francisco 11h 43m stop 22:35 — 00:55 UA1743 United Airlines San Francisco — Seattle	19h 50m including layover	Find flight from$209
09:15 — 14:21	09:15 — 11:43 TS7926 Air Transat Toronto — Calgary 1h 40m stop 13:20 — 14:21 WS1552 WestJet Calgary — Seattle	8h 6m including layover	Find flight from$286
11:31 — 16:42	11:31 — 12:31 AS6216 Alaska Airlines Toronto — Chicago 1h 29m stop 14:07 — 16:55 AS335 Alaska Airlines Chicago — Seattle	8h 11m including layover	Find flight from$321
11:55 — 20:55	11:55 — 13:25 PD2131 Porter Airlines Toronto — Newark 4h 12m stop 17:37 — 20:55 AS477 Alaska Airlines Newark — Seattle	12h including layover	Find flight from$334
12:20 — 18:45	12:20 — 13:11 UA8694 United Airlines Toronto — Chicago 2h 54m stop 16:05 — 18:54 UA2278 United Airlines Chicago — Seattle	9h 25m including layover	Find flight from$367
13:50 — 14:34 +1 day	13:50 — 16:21 WS661 WestJet Toronto — Calgary 21h 13m stop 13:30 — 14:38 WS3612 WestJet Calgary — Seattle	27h 44m including layover	Find flight from$343
13:55 — 21:26	13:55 — 15:30 PD2941 Porter Airlines Toronto — Boston 2h 21m stop 17:51 — 21:26 AS364 Alaska Airlines Boston — Seattle	10h 31m including layover	Find flight from$336
14:45 — 22:45	14:45 — 16:38 UA8163 United Airlines Toronto — Denver 4h 6m stop 21:05 — 23:11 UA2651 United Airlines Denver — Seattle	11h including layover	Find flight from$207
16:00 — 14:34 +1 day	16:00 — 18:31 WS667 WestJet Toronto — Calgary 19h 3m stop 13:30 — 14:38 WS3612 WestJet Calgary — Seattle	25h 34m including layover	Find flight from$204
16:10 — 22:45	16:10 — 18:06 UA568 United Airlines Toronto — Denver 2h 29m stop 21:05 — 23:11 UA2651 United Airlines Denver — Seattle	9h 35m including layover	Find flight from$207
17:20 — 00:55 +1 day	17:20 — 20:07 UA8272 United Airlines Toronto — San Francisco 2h 28m stop 22:35 — 00:55 UA1743 United Airlines San Francisco — Seattle	10h 35m including layover	Find flight from$209
17:30 — 22:42	17:30 — 18:37 UA3542 United Airlines Toronto — Chicago 1h 20m stop 19:55 — 22:46 UA2211 United Airlines Chicago — Seattle	8h 12m including layover	Find flight from$367
18:00 — 00:55 +1 day	18:00 — 21:00 UA2462 United Airlines Toronto — San Francisco 1h 35m stop 22:35 — 00:55 UA1743 United Airlines San Francisco — Seattle	9h 55m including layover	Find flight from$209
18:30 — 14:34 +1 day	18:30 — 21:01 WS671 WestJet Toronto — Calgary 16h 33m stop 13:30 — 14:38 WS3612 WestJet Calgary — Seattle	23h 4m including layover	Find flight from$204
20:00 — 14:34 +1 day	20:00 — 22:30 WS675 WestJet Toronto — Calgary 15h 3m stop 13:30 — 14:38 WS3612 WestJet Calgary — Seattle	21h 34m including layover	Find flight from$204
20:00 — 10:37 +1 day	20:00 — 22:09 WS1118 WestJet Toronto — Las Vegas 9h 37m stop 08:00 — 10:50 AS380 Alaska Airlines Las Vegas — Seattle	17h 37m including layover	Find flight from$225
22:35 — 14:34 +1 day	22:35 — 01:06 WS679 WestJet Toronto — Calgary 12h 28m stop 13:30 — 14:38 WS3612 WestJet Calgary — Seattle	18h 59m including layover	Find flight from$204
06:45 — 21:11	06:45 — 09:51 WS1246 WestJet Toronto — Tampa 4h 12m stop 14:03 — 16:09 F93517 Frontier Airlines Tampa — Denver 2h 59m stop 19:08 — 21:11 F93405 Frontier Airlines Denver — Seattle	17h 26m including layover	Find flight from$254
07:00 — 21:11	07:00 — 10:06 TS7457 Air Transat Toronto — Tampa 3h 57m stop 14:03 — 16:09 F93517 Frontier Airlines Tampa — Denver 2h 59m stop 19:08 — 21:11 F93405 Frontier Airlines Denver — Seattle	17h 11m including layover	Find flight from$273
08:00 — 14:34 +1 day	08:00 — 10:33 WS419 WestJet Toronto — Edmonton 7h 38m stop 18:05 — 19:08 WS3352 WestJet Edmonton — Calgary 18h 25m stop 13:30 — 14:38 WS3612 WestJet Calgary — Seattle	33h 34m including layover	Find flight from$239
10:00 — 23:10	10:00 — 12:30 WS655 WestJet Toronto — Calgary 2h stop 14:30 — 16:54 WS1514 WestJet Calgary — Los Angeles 3h 28m stop 20:22 — 23:10 NK804 Spirit Airlines Los Angeles — Seattle	16h 10m including layover	Find flight from$287
10:00 — 19:08	10:00 — 12:30 WS655 WestJet Toronto — Calgary 1h 45m stop 14:15 — 14:28 WS461 WestJet Calgary — Kelowna 3h 30m stop 17:58 — 19:08 AS3436 Alaska Airlines Kelowna — Seattle	12h 8m including layover	Find flight from$325
14:45 — 00:55 +1 day	14:45 — 16:24 UA3637 United Airlines Toronto — Washington D.C. 1h 53m stop 18:17 — 21:20 UA1666 United Airlines Washington D.C. — San Francisco 1h 15m stop 22:35 — 00:55 UA1743 United Airlines San Francisco — Seattle	13h 10m including layover	Find flight from$209
19:00 — 14:34 +1 day	19:00 — 21:29 WS439 WestJet Toronto — Edmonton 10h 35m stop 08:00 — 09:06 WS266 WestJet Edmonton — Calgary 4h 26m stop 13:30 — 14:38 WS3612 WestJet Calgary — Seattle	22h 34m including layover	Find flight from$239
22:05 — 14:34 +1 day	22:05 — 00:34 WS445 WestJet Toronto — Edmonton 6h stop 06:30 — 07:36 WS238 WestJet Edmonton — Calgary 5h 56m stop 13:30 — 14:38 WS3612 WestJet Calgary — Seattle	19h 29m including layover	Find flight from$239
23:00 — 12:44 +1 day	23:00 — 00:10 WS374 WestJet Toronto — Ottawa 6h 21m stop 06:30 — 09:00 WS319 WestJet Ottawa — Edmonton 2h 50m stop 11:50 — 12:52 AS2106 Alaska Airlines Edmonton — Seattle	16h 44m including layover	Find flight from$346

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on March 1, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Toronto to Seattle depends on and how to choose the most interesting flight option for you.

Distance between Toronto and Seattle is 3326 miles. Time difference between the cities is 3h. Airplanes depart 06:15 to 23:30 from 3 Toronto airports and arrive 06:15 to 23:30 to 3 Seattle airports. Average flight time is 5h 25m.

The fastest flight 5h 25m
Average flight time 5h 25m
The earliest flight 06:15
The latest flight 23:30
Distance 2067 ml

The cheapest months to travel to Seattle are december (from 175 $), january (from 200 $), february (from 200 $).

The most expensive months are november (from 271 $), february (from 200 $), january (from 200 $).

What is the lowest airfare Toronto to Seattle?

The cheapest plane ticket found by our users is $175. This airfare is for economy class on one-way WS649 flight by WestJet for February 21, 2025 which leaves Pearson International in Toronto at 07:55 am and arrives at Seattle Seattle-Tacoma Intl at 14:21.

Economy class

$175

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Business class

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First class

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Popular Airlines on the Route

The flight Toronto — Seattle is served by 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Air Canada - 8 departures per week at the price of from $ 350 . And the most expensive tickets are offered by WestJet airline - from $ 625.

Direct flights

There are 1 nonstop flights on the route. The fastest direct flight is UA8525 by United Airlines takes 5h 25m and the cheapest is WS649 by WestJet for $198.

UA - United Airlines

from $198

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Connecting Flights

There are 105 flights with layovers on the route. The fastest connecting flight is AC163 by Air Canada takes 7h 19m and the cheapest is WS649 by WestJet for $175.

AC - Air Canada

from $350

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F8 - Freedom Airlines

from $286

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AS - Alaska Airlines

from $321

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PD - Porter Airlines

from $334

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WS - WestJet

from $175

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UA - United Airlines

from $207

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TS - Air Transat

from $273

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Airports

You can fly from Toronto to Seattle from 3 airports (Buttonville Municipal, Toronto Island, Pearson International).

Toronto airports

Buttonville Municipal-YKZ

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Toronto Island-YTZ

from $334
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Pearson International-YYZ

from $175
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Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

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Kenmore Air Harbor SPB-LKE

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Airplanes

There are flights to Seattle from Toronto by 7 airlines that use 2 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 737 MAX 8

from $354

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Airbus A319

from $367

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Top International Destinations from Toronto

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Toronto — Ontario

from $75

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Toronto — Miami

from $55

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Toronto — Orlando

from $64

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Toronto — New York

from $54

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Toronto — Las Vegas

from $72

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Toronto — Boston

from $78

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Toronto — Chicago

from $73

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Toronto — Los Angeles

from $65

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Toronto — Nashville

from $56

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Toronto — Tampa

from $66

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How to book a plane 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 flight ticket.
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.