Cheap Flights from Seattle, WA to Toronto, ON from $153

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: Toronto – Seattle

Page navigation

Price Calendar Cheap Flights Flights Schedule

On Cheapflightsplus.com you will find 1 direct and 105 connecting flights from Seattle to Toronto. You can compare airfare deals from 6 airlines and multiple travel sites from $153, book and save on cheap plane tickets and last minute offers. Also check out SEA-YTO flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Toronto 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: $153 (one-way), $262 (round-trip).

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

Best Flights from Seattle to Toronto Today

Take a look at the list of non stop flights and flights with layovers from Seattle to Toronto with the lowest price of $153. The fastest direct flight takes 4h 45m and the fastest connecting – 6h 46m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $174 Find flight	06:05 Seattle Seattle-Tacoma Intl	13:50 Toronto Pearson International	4h 45m	United Airlines	UA8244
from $175 Find flight	05:02 Seattle Seattle-Tacoma Intl	15:02 Toronto Pearson International	7h 0m layover 1h 9m - Denver	United Airlines	UA2269 UA1874
from $175 Find flight	19:32 Seattle Seattle-Tacoma Intl	06:43+1 день Toronto Pearson International	8h 11m layover 0h 55m - San Francisco	United Airlines	UA737 UA8516
from $175 Find flight	06:15 Seattle Seattle-Tacoma Intl	19:25 Toronto Pearson International	10h 10m layover 2h 49m - Los Angeles	United Airlines	UA1571 UA8328
from $176 Find flight	19:32 Seattle Seattle-Tacoma Intl	07:30+1 день Toronto Pearson International	8h 58m layover 1h 41m - San Francisco	United Airlines	UA737 UA436
from $177 Find flight	23:59 Seattle Seattle-Tacoma Intl	13:42+1 день Toronto Pearson International	10h 43m layover 5h 11m - Chicago	United Airlines	UA747 UA567
from $177 Find flight	23:59 Seattle Seattle-Tacoma Intl	15:45+1 день Toronto Pearson International	12h 46m layover 7h 11m - Chicago	United Airlines	UA747 UA5384
from $177 Find flight	23:59 Seattle Seattle-Tacoma Intl	16:46+1 день Toronto Pearson International	13h 47m layover 8h 12m - Chicago	United Airlines	UA747 UA8474
from $177 Find flight	12:37 Seattle Seattle-Tacoma Intl	06:43+1 день Toronto Pearson International	15h 6m layover 7h 50m - San Francisco	United Airlines	UA1482 UA8516
from $177 Find flight	23:59 Seattle Seattle-Tacoma Intl	18:41+1 день Toronto Pearson International	15h 42m layover 10h 7m - Chicago	United Airlines	UA747 UA8308
from $177 Find flight	12:37 Seattle Seattle-Tacoma Intl	07:30+1 день Toronto Pearson International	15h 53m layover 8h 36m - San Francisco	United Airlines	UA1482 UA436
from $182 Find flight	15:15 Seattle Seattle-Tacoma Intl	19:06+1 день Toronto Pearson International	24h 51m layover 19h 15m - Calgary	WestJet	WS1553 WS664
from $193 Find flight	18:55 Seattle Seattle-Tacoma Intl	06:43+1 день Toronto Pearson International	8h 48m layover 2h 1m - Las Vegas	Alaska Airlines	AS339 WS1119
from $223 Find flight	23:59 Seattle Seattle-Tacoma Intl	10:51+1 день Toronto Pearson International	7h 52m layover 2h 18m - Chicago	Alaska Airlines	AS461 AS6216
from $153 Find flight	15:15 Seattle Seattle-Tacoma Intl	05:58+1 день Toronto Pearson International	11h 43m layover 2h 5m - Calgary 3h 3m - Edmonton	WestJet	WS1553 WS241 WS418
from $246 Find flight	11:30 Seattle Seattle-Tacoma Intl	00:26+1 день Toronto Pearson International	9h 56m layover 2h 44m - Kelowna 1h 2m - Calgary	WestJet	WS3731 WS460 WS676

Show all tickets

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

Flight Schedule Seattle (Washington) to Toronto (Ontario)

Full flight schedule will help you in detecting at what time planes fly from Seattle to Toronto. 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
06:05 — 13:50	06:05 — 13:50 UA8244 United Airlines Seattle — Toronto	4h 45m	Find flight from$174
05:02 — 15:02	05:00 — 08:47 UA2269 United Airlines Seattle — Denver 1h 9m stop 09:50 — 15:02 UA1874 United Airlines Denver — Toronto	7h including layover	Find flight from$175
05:02 — 16:27	05:00 — 08:47 UA2269 United Airlines Seattle — Denver 2h 31m stop 11:25 — 16:37 UA8426 United Airlines Denver — Toronto	8h 25m including layover	Find flight from$175
06:15 — 19:25	06:15 — 09:02 UA1571 United Airlines Seattle — Los Angeles 2h 49m stop 11:50 — 19:25 UA8328 United Airlines Los Angeles — Toronto	10h 10m including layover	Find flight from$175
07:00 — 21:50	07:00 — 09:49 AS1258 Alaska Airlines Seattle — San Diego 4h 16m stop 14:05 — 21:50 TS7794 Air Transat San Diego — Toronto	11h 50m including layover	Find flight from$280
09:40 — 23:55	09:25 — 10:35 WS8496 WestJet Seattle — Vancouver 5h 22m stop 16:15 — 23:55 PD308 Porter Airlines Vancouver — Toronto	11h 15m including layover	Find flight from$258
10:56 — 22:33	08:46 — 14:40 AS414 Alaska Airlines Seattle — Dallas 1h 47m stop 18:39 — 22:39 AS6187 Alaska Airlines Dallas — Toronto	8h 37m including layover	Find flight from$252
12:37 — 06:43 +1 day	12:37 — 14:55 UA1482 United Airlines Seattle — San Francisco 7h 50m stop 22:45 — 06:43 UA8516 United Airlines San Francisco — Toronto	15h 6m including layover	Find flight from$177
12:37 — 07:30 +1 day	12:37 — 14:55 UA1482 United Airlines Seattle — San Francisco 8h 36m stop 23:31 — 07:30 UA436 United Airlines San Francisco — Toronto	15h 53m including layover	Find flight from$177
18:37 — 06:43 +1 day	18:37 — 21:11 NK782 Spirit Airlines Seattle — Las Vegas 2h 14m stop 23:25 — 06:43 WS1119 WestJet Las Vegas — Toronto	9h 6m including layover	Find flight from$243
18:55 — 06:43 +1 day	18:28 — 21:00 AS339 Alaska Airlines Seattle — Las Vegas 2h 1m stop 23:25 — 06:46 WS1119 WestJet Las Vegas — Toronto	8h 48m including layover	Find flight from$193
19:32 — 06:43 +1 day	16:23 — 18:40 UA737 United Airlines Seattle — San Francisco 55m stop 22:45 — 06:43 UA8516 United Airlines San Francisco — Toronto	8h 11m including layover	Find flight from$175
19:32 — 07:30 +1 day	12:55 — 15:12 UA737 United Airlines Seattle — San Francisco 1h 41m stop 23:27 — 07:30 UA436 United Airlines San Francisco — Toronto	8h 58m including layover	Find flight from$176
21:40 — 15:05 +1 day	21:40 — 05:32 AS307 Alaska Airlines Seattle — Washington D.C. 8h 3m stop 13:35 — 15:05 PD2724 Porter Airlines Washington D.C. — Toronto	14h 25m including layover	Find flight from$314
22:47 — 14:40 +1 day	22:47 — 23:52 AS3307 Alaska Airlines Seattle — Vancouver 7h 8m stop 07:00 — 14:40 PD302 Porter Airlines Vancouver — Toronto	12h 53m including layover	Find flight from$261
23:59 — 13:42 +1 day	23:59 — 05:53 UA747 United Airlines Seattle — Chicago 5h 11m stop 11:04 — 13:42 UA567 United Airlines Chicago — Toronto	10h 43m including layover	Find flight from$177
23:59 — 15:45 +1 day	23:59 — 05:53 UA747 United Airlines Seattle — Chicago 7h 11m stop 13:04 — 15:45 UA5384 United Airlines Chicago — Toronto	12h 46m including layover	Find flight from$177
09:37 — 15:05 +1 day	09:19 — 13:04 F93406 Frontier Airlines Seattle — Denver 3h 2m stop 16:38 — 21:58 F9690 Frontier Airlines Denver — Washington D.C. 15h 36m stop 13:45 — 15:15 PD2724 Porter Airlines Washington D.C. — Toronto	26h 28m including layover	Find flight from$246
11:30 — 00:26 +1 day	11:30 — 12:36 WS3731 WestJet Seattle — Kelowna 2h 44m stop 15:20 — 17:28 WS460 WestJet Kelowna — Calgary 1h 2m stop 18:30 — 00:26 WS676 WestJet Calgary — Toronto	9h 56m including layover	Find flight from$246
11:30 — 05:58 +1 day	11:30 — 12:36 WS3731 WestJet Seattle — Kelowna 6h 24m stop 19:00 — 21:29 WS3198 WestJet Kelowna — Edmonton 2h 36m stop 00:05 — 05:58 WS418 WestJet Edmonton — Toronto	15h 28m including layover	Find flight from$246
13:53 — 06:43 +1 day	13:53 — 16:30 F93163 Frontier Airlines Seattle — Ontario 1h stop 17:30 — 18:43 F92232 Frontier Airlines Ontario — Las Vegas 4h 42m stop 23:25 — 06:43 WS1119 WestJet Las Vegas — Toronto	13h 50m including layover	Find flight from$265
15:15 — 05:58 +1 day	15:15 — 17:55 WS1553 WestJet Seattle — Calgary 2h 5m stop 20:00 — 21:04 WS241 WestJet Calgary — Edmonton 3h 3m stop 00:05 — 06:00 WS418 WestJet Edmonton — Toronto	11h 43m including layover	Find flight from$153
15:15 — 05:58 +1 day	15:15 — 17:55 WS1553 WestJet Seattle — Calgary 3h 50m stop 21:45 — 22:49 WS289 WestJet Calgary — Edmonton 1h 18m stop 00:05 — 06:00 WS418 WestJet Edmonton — Toronto	11h 43m including layover	Find flight from$153
22:08 — 15:47 +2 days	22:08 — 01:51 F91176 Frontier Airlines Seattle — Denver 18h 49m stop 20:40 — 00:11 F93172 Frontier Airlines Denver — Chicago 12h 54m stop 13:05 — 15:47 PD2388 Porter Airlines Chicago — Toronto	38h 39m including layover	Find flight from$276

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 Seattle to Toronto depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Toronto is 3326 miles. Time difference between the cities is 3h. Airplanes depart 05:02 to 23:59 from 3 Seattle airports and arrive 05:02 to 23:59 to 3 Toronto airports. Average flight time is 4h 45m.

The fastest flight 4h 45m
Average flight time 4h 45m
The earliest flight 05:02
The latest flight 23:59
Distance 2067 ml

The cheapest months to travel to Toronto are december (from 153 $), january (from 175 $), february (from 175 $).

The most expensive months are november (from 350 $), february (from 175 $), january (from 175 $).

What is the lowest airfare Seattle to Toronto?

The cheapest plane ticket found by our users is $153. This airfare is for economy class on one-way WS1553 flight by WestJet for February 21, 2025 which leaves Seattle-Tacoma Intl in Seattle at 15:15 am and arrives at Toronto Pearson International at 05:58.

Economy class

$153

Find

Business class

Find

First class

Find

Popular Airlines on the Route

The flight Seattle — Toronto is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 30 departures per week at the price of from $ 193 . And the most expensive tickets are offered by WestJet airline - from $ 513.

Direct flights

There are 1 nonstop flights on the route. The fastest direct flight is UA8244 by United Airlines takes 4h 45m and the cheapest is WS1553 by WestJet for $174.

UA - United Airlines

from $174

Find

See more direct flights

Connecting Flights

There are 105 flights with layovers on the route. The fastest connecting flight is UA1448 by United Airlines takes 6h 46m and the cheapest is WS1553 by WestJet for $153.

AS - Alaska Airlines

from $193

Find
AC - Air Canada

from $383

Find
F9 - Frontier Airlines

from $246

Find
WS - WestJet

from $153

Find
UA - United Airlines

from $175

Find
NK - Spirit Airlines

from $243

Find

See more connecting flights

Airports

You can fly from Seattle to Toronto from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

Boeing Field International Airport-BFI

Find
Seattle-Tacoma Intl-SEA

from $153
Find
Kenmore Air Harbor SPB-LKE

Find

Toronto airports

Buttonville Municipal-YKZ

Find
Toronto Island-YTZ

Find
Pearson International-YYZ

Find

Airplanes

There are flights to Toronto from Seattle by 6 airlines that use 1 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 737-800

from $176

Find

Top Domestic Destinations from Seattle

You may also consider searching for discounted plane tickets to some other popular places from Seattle within United States.

Seattle — Washington D.C.

from $78

Find
Seattle — Las Vegas

from $62

Find
Seattle — New York

from $180

Find
Seattle — Chicago

from $73

Find
Seattle — Phoenix

from $67

Find
Seattle — San Diego

from $74

Find
Seattle — Los Angeles

from $53

Find
Seattle — Denver

from $243

Find
Seattle — Dallas

from $72

Find
Seattle — Boston

from $63

Find

Top International Destinations from Seattle

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.

Seattle — Tokyo

from $77

Find
Seattle — London

from $70

Find
Seattle — Vancouver

from $57

Find
Seattle — Cancun

from $63

Find
Seattle — Paris

from $66

Find
Seattle — Toronto

from $64

Find
Seattle — Calgary

from $76

Find
Seattle — Mumbai

from $80

Find
Seattle — Montreal

from $68

Find
Seattle — Amsterdam

from $64

Find

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.