Cheap Flights from Toronto, ON to Seattle, WA from $172

One way Round trip

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On Cheapflightsplus.com you will find 3 direct and 982 connecting flights from Toronto to Seattle. You can compare airfare deals from 12 airlines and multiple travel sites from $172, 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: $172 (one-way), $295 (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 $172. The fastest direct flight takes 5h 19m and the fastest connecting – 7h 19m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $182 Find flight	16:20 Toronto Pearson International	18:39 Seattle Seattle-Tacoma Intl	5h 19m	Alaska Airlines	AS973
from $198 Find flight	19:05 Toronto Pearson International	21:30 Seattle Seattle-Tacoma Intl	5h 25m	United Airlines	UA8525
from $434 Find flight	19:15 Toronto Pearson International	21:40 Seattle Seattle-Tacoma Intl	5h 25m	Air Canada	AC543
from $174 Find flight	20:00 Toronto Pearson International	08:50+1 день Seattle Seattle-Tacoma Intl	15h 50m layover 7h 51m - Las Vegas	WestJet	WS1118 F92407
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 $178 Find flight	19:25 Toronto Pearson International	08:57+1 день Seattle Seattle-Tacoma Intl	16h 32m layover 8h 32m - Las Vegas	Porter Airlines	PD655 F92407
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	14:21+1 день Seattle Seattle-Tacoma Intl	18h 46m layover 12h 18m - Calgary	WestJet	WS679 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	06:10 Toronto Pearson International	22:50 Seattle Seattle-Tacoma Intl	19h 40m layover 10h 47m - Houston	United Airlines	UA1345 UA2456
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 $172 Find flight	10:00 Toronto Pearson International	09:34+1 день Seattle Seattle-Tacoma Intl	26h 34m layover 3h 9m - Calgary 13h 4m - Las Vegas	WestJet	WS655 WS1624 F92407
from $190 Find flight	13:50 Toronto Pearson International	08:50+1 день Seattle Seattle-Tacoma Intl	22h 0m layover 2h 34m - Calgary 9h 9m - Las Vegas	WestJet	WS661 WS1400 F92407
from $198 Find flight	20:00 Toronto Pearson International	14:15+1 день Seattle Seattle-Tacoma Intl	21h 15m layover 7h 13m - Orlando 3h 26m - Denver	WestJet	WS1166 F91733 F91175

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on April 03, 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
16:20 — 18:39	16:20 — 18:39 AS973 Alaska Airlines Toronto — Seattle	5h 19m	Find flight from$182
19:05 — 21:30	19:05 — 21:30 UA8525 United Airlines Toronto — Seattle	5h 25m	Find flight from$198
19:15 — 21:40	19:15 — 21:40 AC543 Air Canada Toronto — Seattle	5h 25m	Find flight from$434
06:10 — 22:50	06:10 — 09:03 UA1345 United Airlines Toronto — Houston 10h 47m stop 19:53 — 22:53 UA2456 United Airlines Houston — Seattle	19h 40m including layover	Find flight from$204
07:15 — 22:00	07:15 — 08:59 UA3607 United Airlines Toronto — Newark 9h 41m stop 18:40 — 22:00 UA2044 United Airlines Newark — Seattle	17h 45m including layover	Find flight from$205
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
08:00 — 22:30	08:00 — 10:32 UA8337 United Airlines Toronto — Los Angeles 8h 58m stop 19:30 — 22:30 UA1657 United Airlines Los Angeles — Seattle	17h 30m including layover	Find flight from$205
08:05 — 15:21	08:05 — 10:52 UA8698 United Airlines Toronto — San Francisco 2h 11m stop 13:03 — 15:21 UA2391 United Airlines San Francisco — Seattle	10h 16m including layover	Find flight from$205
09:30 — 22:00	09:30 — 11:13 UA3701 United Airlines Toronto — Newark 7h 27m stop 19:10 — 22:37 UA2044 United Airlines Newark — Seattle	15h 30m including layover	Find flight from$206
10:45 — 22:00	10:45 — 12:24 UA3648 United Airlines Toronto — Newark 6h 16m stop 19:10 — 22:37 UA2044 United Airlines Newark — Seattle	14h 15m including layover	Find flight from$206
12:45 — 22:00	12:45 — 14:30 UA3649 United Airlines Toronto — Newark 4h 11m stop 19:10 — 22:37 UA2044 United Airlines Newark — Seattle	12h 15m including layover	Find flight from$207
13:50 — 14:21 +1 day	13:50 — 16:21 WS661 WestJet Toronto — Calgary 21h 3m stop 13:20 — 14:21 WS1552 WestJet Calgary — Seattle	27h 31m including layover	Find flight from$210
14:00 — 22:00	14:00 — 15:36 UA8660 United Airlines Toronto — Newark 2h 52m stop 19:10 — 22:37 UA2044 United Airlines Newark — Seattle	11h including layover	Find flight from$206
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
15:00 — 22:00	15:00 — 16:41 UA3705 United Airlines Toronto — Newark 1h 59m stop 18:40 — 22:00 UA2044 United Airlines Newark — Seattle	10h including layover	Find flight from$206
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
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
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
18:40 — 11:16 +1 day	18:40 — 20:33 UA3711 United Airlines Toronto — Newark 11h 26m stop 07:59 — 11:16 UA1330 United Airlines Newark — Seattle	19h 36m including layover	Find flight from$205
19:25 — 08:57 +1 day	19:25 — 21:28 PD655 Porter Airlines Toronto — Las Vegas 8h 32m stop 06:00 — 08:57 F92407 Frontier Airlines Las Vegas — Seattle	16h 32m including layover	Find flight from$178
20:00 — 08:50 +1 day	20:00 — 22:09 WS1118 WestJet Toronto — Las Vegas 7h 51m stop 15:32 — 18:26 F92407 Frontier Airlines Las Vegas — Seattle	15h 50m including layover	Find flight from$174
21:10 — 11:16 +1 day	21:10 — 22:50 UA8202 United Airlines Toronto — Newark 9h 9m stop 07:59 — 11:16 UA1330 United Airlines Newark — Seattle	17h 6m including layover	Find flight from$205
22:35 — 14:21 +1 day	22:35 — 01:06 WS679 WestJet Toronto — Calgary 12h 18m stop 13:20 — 14:21 WS1552 WestJet Calgary — Seattle	18h 46m including layover	Find flight from$204
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
06:30 — 09:34 +1 day	06:30 — 09:06 WS653 WestJet Toronto — Calgary 1h 24m stop 10:30 — 12:29 WS1424 WestJet Calgary — Las Vegas 18h 15m stop 06:44 — 09:34 F92407 Frontier Airlines Las Vegas — Seattle	30h 4m including layover	Find flight from$172
10:00 — 09:34 +1 day	10:00 — 12:36 WS655 WestJet Toronto — Calgary 3h 9m stop 15:45 — 17:40 WS1624 WestJet Calgary — Las Vegas 13h 4m stop 06:44 — 09:34 F92407 Frontier Airlines Las Vegas — Seattle	26h 34m including layover	Find flight from$172
11:00 — 22:30	11:00 — 11:59 UA1063 United Airlines Toronto — Chicago 1h 1m stop 13:00 — 15:32 UA2657 United Airlines Chicago — Los Angeles 3h 58m stop 19:30 — 22:30 UA1657 United Airlines Los Angeles — Seattle	14h 30m including layover	Find flight from$205
11:00 — 22:30	11:00 — 11:59 UA1063 United Airlines Toronto — Chicago 2h 1m stop 14:00 — 16:38 UA2661 United Airlines Chicago — Los Angeles 2h 52m stop 19:30 — 22:30 UA1657 United Airlines Los Angeles — Seattle	14h 30m including layover	Find flight from$205
12:20 — 22:30	12:20 — 13:11 UA8694 United Airlines Toronto — Chicago 49m stop 14:00 — 16:38 UA2661 United Airlines Chicago — Los Angeles 2h 52m stop 19:30 — 22:30 UA1657 United Airlines Los Angeles — Seattle	13h 10m including layover	Find flight from$205
13:50 — 08:50 +1 day	13:50 — 16:21 WS661 WestJet Toronto — Calgary 2h 34m stop 18:55 — 20:51 WS1400 WestJet Calgary — Las Vegas 9h 9m stop 06:00 — 08:50 F92407 Frontier Airlines Las Vegas — Seattle	22h including layover	Find flight from$190
20:00 — 07:15 +1 day	20:00 — 22:09 WS1118 WestJet Toronto — Las Vegas 2h 50m stop 00:59 — 03:59 F92430 Frontier Airlines Las Vegas — Denver 1h 5m stop 05:04 — 07:15 F91175 Frontier Airlines Denver — Seattle	14h 15m including layover	Find flight from$194

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

*Departure and arrival times - local. Updated on April 3, 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 06:00 to 23:50 from 3 Toronto airports and arrive 06:00 to 23:50 to 3 Seattle airports. Average flight time is 5h 25m.

The fastest flight 5h 19m
Average flight time 5h 25m
The earliest flight 06:00
The latest flight 23:50
Distance 2067 ml

The cheapest months to travel to Seattle are january (from 172 $), december (from 174 $), november (from 194 $).

The most expensive months are february (from 200 $), november (from 194 $), december (from 174 $).

What is the lowest airfare Toronto to Seattle?

The cheapest plane ticket found by our users is $172. This airfare is for economy class on one-way WS653 flight by WestJet for January 22, 2025 which leaves Pearson International in Toronto at 06:30 am and arrives at Seattle Seattle-Tacoma Intl at 09:34.

Economy class

$172

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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 12 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Air Canada - 64 departures per week at the price of from $ 238 . And the most expensive tickets are offered by Aeromexico airline - from $ 3240.

Direct flights

There are 3 nonstop flights on the route. The fastest direct flight is AS973 by Alaska Airlines takes 5h 19m and the cheapest is WS653 by WestJet for $182.

AC - Air Canada

from $434

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AS - Alaska Airlines

from $182

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UA - United Airlines

from $198

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See more direct flights

Connecting Flights

There are 982 flights with layovers on the route. The fastest connecting flight is AC163 by Air Canada takes 7h 19m and the cheapest is WS653 by WestJet for $172.

AC - Air Canada

from $238

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AA - American Airlines

from $317

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F8 - Freedom Airlines

from $213

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AS - Alaska Airlines

from $321

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FI - Icelandair

from $1397

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PD - Porter Airlines

from $178

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DL - Delta Air Lines Inc.

from $235

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AY - Finnair

from $2133

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WS - WestJet

from $172

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UA - United Airlines

from $204

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AM - Aeromexico

from $3240

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TS - Air Transat

from $273

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See more connecting flights

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 $261
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Pearson International-YYZ

from $172
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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 12 airlines that use 10 aircraft brands. They range from huge modern airplanes to small-sized.

Canadair Regional Jet 900

from $206

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Embraer 175 (short wing)

from $206

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Boeing 737-800

from $235

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Boeing 737 MAX 8

from $284

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Boeing 737-700

from $284

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Airbus A321

from $293

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De Havilland Canada DHC-8-400 Dash 8Q

from $298

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Canadair Regional Jet 700

from $317

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Airbus A319

from $320

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Boeing 737-100/200

from $323

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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.