Cheap Flights from Seattle, WA to Toronto, ON from $136

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On Cheapflightsplus.com you will find 511 connecting flights from Seattle to Toronto. You can compare airfare deals from 8 airlines and multiple travel sites from $136, 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: $136 (one-way), $233 (round-trip).

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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 $136. Take a look at the list of flights with layovers from Seattle to Toronto from $136. There’re no direct flights. The fastest connecting flight – 6h 38m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $136 Find flight	17:50 Seattle Seattle-Tacoma Intl	11:57+1 день Toronto Toronto Island	15h 7m layover 9h 16m - Chicago	Hawaiian Airlines	HA6819 PD2388
from $143 Find flight	17:55 Seattle Seattle-Tacoma Intl	11:57+1 день Toronto Toronto Island	15h 2m layover 9h 16m - Chicago	Alaska Airlines	AS538 PD2388
from $143 Find flight	13:39 Seattle Seattle-Tacoma Intl	11:57+1 день Toronto Toronto Island	19h 18m layover 13h 27m - Chicago	Alaska Airlines	AS410 PD2388
from $174 Find flight	16:58 Seattle Seattle-Tacoma Intl	06:20+1 день Toronto Pearson International	10h 22m layover 3h 19m - Las Vegas	Spirit Airlines	NK782 PD656
from $179 Find flight	23:59 Seattle Seattle-Tacoma Intl	11:50+1 день Toronto Pearson International	8h 51m layover 3h 37m - Minneapolis	Sun Country Airlines	SY290 SY1697
from $179 Find flight	18:42 Seattle Seattle-Tacoma Intl	11:50+1 день Toronto Pearson International	14h 8m layover 8h 51m - Minneapolis	Sun Country Airlines	SY286 SY1697
from $181 Find flight	00:17 Seattle Seattle-Tacoma Intl	10:52 Toronto Pearson International	7h 35m layover 1h 46m - Chicago	Alaska Airlines	AS384 AS6216
from $181 Find flight	00:17 Seattle Seattle-Tacoma Intl	12:30 Toronto Pearson International	9h 13m layover 3h 24m - Chicago	Alaska Airlines	AS384 AS4246
from $181 Find flight	09:50 Seattle Seattle-Tacoma Intl	23:00 Toronto Pearson International	10h 10m layover 3h 7m - Dallas	Alaska Airlines	AS426 AS6187
from $181 Find flight	15:59 Seattle Seattle-Tacoma Intl	11:57+1 день Toronto Toronto Island	16h 58m layover 11h 11m - Chicago	Hawaiian Airlines	HA6821 TS7058
from $188 Find flight	15:11 Seattle Seattle-Tacoma Intl	06:20+1 день Toronto Pearson International	12h 9m layover 4h 59m - Las Vegas	Frontier Airlines	F94830 PD656
from $190 Find flight	12:39 Seattle Seattle-Tacoma Intl	06:47+1 день Toronto Pearson International	15h 8m layover 9h 33m - Kelowna	Alaska Airlines	AS3436 WS514
from $193 Find flight	00:59 Seattle Seattle-Tacoma Intl	12:30 Toronto Pearson International	8h 31m layover 2h 42m - Chicago	Alaska Airlines	AS328 AS4435
from $193 Find flight	19:50 Seattle Seattle-Tacoma Intl	06:20+2 дня Toronto Pearson International	31h 30m layover 24h 29m - Las Vegas	Hawaiian Airlines	HA6754 PD656
from $164 Find flight	10:50 Seattle Seattle-Tacoma Intl	06:12+1 день Toronto Pearson International	16h 22m layover 4h 23m - Los Angeles 2h 11m - Calgary	Frontier Airlines	F92176 WS1515 WS652
from $198 Find flight	21:25 Seattle Seattle-Tacoma Intl	00:33+2 дня Toronto Pearson International	24h 8m layover 11h 7m - Los Angeles 2h 59m - Edmonton	Hawaiian Airlines	HA6771 WS1423 WS438

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 15, 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
00:17 — 10:52	00:17 — 06:21 AS384 Alaska Airlines Seattle — Chicago 1h 46m stop 08:07 — 10:52 AS6216 Alaska Airlines Chicago — Toronto	7h 35m including layover	Find flight from$181
00:17 — 12:30	00:17 — 06:21 AS384 Alaska Airlines Seattle — Chicago 3h 24m stop 09:45 — 12:30 AS4246 Alaska Airlines Chicago — Toronto	9h 13m including layover	Find flight from$181
06:00 — 17:40	06:00 — 12:07 AS408 Alaska Airlines Seattle — Chicago 2h 53m stop 15:00 — 17:40 AS4430 Alaska Airlines Chicago — Toronto	8h 40m including layover	Find flight from$198
06:00 — 20:02	06:00 — 12:07 HA6816 Hawaiian Airlines Seattle — Chicago 5h 13m stop 17:20 — 20:02 PD2394 Porter Airlines Chicago — Toronto	11h 2m including layover	Find flight from$214
07:00 — 18:33	07:00 — 13:15 UA2618 United Airlines Seattle — Chicago 2h 35m stop 15:50 — 18:35 UA8308 United Airlines Chicago — Toronto	8h 33m including layover	Find flight from$216
07:05 — 18:52	07:05 — 09:45 WS1551 WestJet Seattle — Calgary 3h 15m stop 13:00 — 18:54 WS664 WestJet Calgary — Toronto	8h 47m including layover	Find flight from$200
08:40 — 18:54	08:25 — 11:15 WS3611 WestJet Seattle — Calgary 1h 29m stop 13:00 — 18:56 WS664 WestJet Calgary — Toronto	7h 14m including layover	Find flight from$213
09:10 — 11:50 +1 day	09:10 — 14:25 SY282 Sun Country Airlines Seattle — Minneapolis 18h 25m stop 08:50 — 11:50 SY1697 Sun Country Airlines Minneapolis — Toronto	23h 40m including layover	Find flight from$218
09:50 — 23:00	09:50 — 15:53 AS426 Alaska Airlines Seattle — Dallas 3h 7m stop 19:00 — 23:00 AS6187 Alaska Airlines Dallas — Toronto	10h 10m including layover	Find flight from$181
10:25 — 06:20 +1 day	10:25 — 13:06 HA6761 Hawaiian Airlines Seattle — Las Vegas 9h 49m stop 22:55 — 06:20 PD656 Porter Airlines Las Vegas — Toronto	16h 55m including layover	Find flight from$199
10:55 — 20:44	10:55 — 17:10 UA2671 United Airlines Seattle — Chicago 51m stop 18:01 — 20:44 UA265 United Airlines Chicago — Toronto	6h 49m including layover	Find flight from$216
12:00 — 06:59 +1 day	12:00 — 14:52 HA6768 Hawaiian Airlines Seattle — Los Angeles 8h 18m stop 23:10 — 06:59 WS1103 WestJet Los Angeles — Toronto	15h 59m including layover	Find flight from$196
12:39 — 06:47 +1 day	12:30 — 13:46 AS3436 Alaska Airlines Seattle — Kelowna 9h 33m stop 23:30 — 06:47 WS514 WestJet Kelowna — Toronto	15h 8m including layover	Find flight from$190
13:39 — 11:57 +1 day	13:39 — 19:48 AS410 Alaska Airlines Seattle — Chicago 13h 27m stop 09:15 — 11:57 PD2388 Porter Airlines Chicago — Toronto	19h 18m including layover	Find flight from$143
13:55 — 23:58	13:55 — 20:10 UA1298 United Airlines Seattle — Chicago 1h 2m stop 21:12 — 23:58 UA1756 United Airlines Chicago — Toronto	7h 3m including layover	Find flight from$216
14:13 — 06:20 +1 day	14:13 — 16:51 AS600 Alaska Airlines Seattle — Las Vegas 6h 4m stop 22:55 — 06:20 PD656 Porter Airlines Las Vegas — Toronto	13h 7m including layover	Find flight from$204
14:40 — 06:59 +1 day	14:40 — 17:23 HA6767 Hawaiian Airlines Seattle — Los Angeles 5h 47m stop 23:10 — 06:59 WS1103 WestJet Los Angeles — Toronto	13h 19m including layover	Find flight from$196
15:11 — 06:20 +1 day	15:11 — 17:50 F94830 Frontier Airlines Seattle — Las Vegas 4h 59m stop 22:55 — 06:20 PD656 Porter Airlines Las Vegas — Toronto	12h 9m including layover	Find flight from$188
15:59 — 11:57 +1 day	15:59 — 22:04 HA6821 Hawaiian Airlines Seattle — Chicago 11h 11m stop 09:15 — 11:57 TS7058 Air Transat Chicago — Toronto	16h 58m including layover	Find flight from$181
16:50 — 06:20 +1 day	16:50 — 19:28 HA6157 Hawaiian Airlines Seattle — Las Vegas 3h 27m stop 22:55 — 06:20 PD656 Porter Airlines Las Vegas — Toronto	10h 30m including layover	Find flight from$199
16:58 — 06:20 +1 day	16:58 — 19:36 NK782 Spirit Airlines Seattle — Las Vegas 3h 19m stop 22:55 — 06:20 PD656 Porter Airlines Las Vegas — Toronto	10h 22m including layover	Find flight from$174
17:50 — 11:57 +1 day	17:55 — 23:59 HA6819 Hawaiian Airlines Seattle — Chicago 9h 16m stop 09:40 — 12:22 PD2388 Porter Airlines Chicago — Toronto	15h 7m including layover	Find flight from$136
17:55 — 11:57 +1 day	17:55 — 23:59 AS538 Alaska Airlines Seattle — Chicago 9h 16m stop 09:40 — 12:22 PD2388 Porter Airlines Chicago — Toronto	15h 2m including layover	Find flight from$143
18:42 — 11:50 +1 day	18:33 — 23:53 SY286 Sun Country Airlines Seattle — Minneapolis 8h 51m stop 08:50 — 11:50 SY1697 Sun Country Airlines Minneapolis — Toronto	14h 8m including layover	Find flight from$179
19:50 — 06:20 +2 days	19:50 — 22:26 HA6754 Hawaiian Airlines Seattle — Las Vegas 24h 29m stop 22:55 — 06:20 PD656 Porter Airlines Las Vegas — Toronto	31h 30m including layover	Find flight from$193
19:50 — 19:58 +1 day	19:50 — 22:26 HA6754 Hawaiian Airlines Seattle — Las Vegas 14h 9m stop 12:35 — 19:58 WS1117 WestJet Las Vegas — Toronto	21h 8m including layover	Find flight from$211
21:18 — 17:22 +1 day	21:18 — 23:59 HA6757 Hawaiian Airlines Seattle — Las Vegas 9h 56m stop 09:55 — 17:22 PD654 Porter Airlines Las Vegas — Toronto	17h 4m including layover	Find flight from$216
21:58 — 07:11 +2 days	21:45 — 22:43 AS3393 Alaska Airlines Seattle — Victoria 24h 37m stop 23:35 — 07:12 WS798 WestJet Victoria — Toronto	30h 13m including layover	Find flight from$216
23:37 — 11:44 +1 day	22:36 — 06:43 UA341 United Airlines Seattle — Newark 2h 8m stop 10:00 — 11:46 UA3555 United Airlines Newark — Toronto	9h 7m including layover	Find flight from$196
23:59 — 11:50 +1 day	23:59 — 05:16 SY290 Sun Country Airlines Seattle — Minneapolis 3h 37m stop 08:50 — 11:50 SY1697 Sun Country Airlines Minneapolis — Toronto	8h 51m including layover	Find flight from$179

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

*Departure and arrival times - local. Updated on July 15, 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 00:17 to 23:59 from 3 Seattle airports and arrive 00:17 to 23:59 to 3 Toronto airports. Average flight time is 12h 55m.

The fastest flight 6h 38m
Average flight time 12h 55m
The earliest flight 00:17
The latest flight 23:59
Distance 2067 ml

The cheapest months to travel to Toronto are october (from 136 $), september (from 143 $), june (from 150 $).

The most expensive months are november (from 547 $), may (from 221 $), december (from 220 $).

What is the lowest airfare Seattle to Toronto?

The cheapest plane ticket found by our users is $136. This airfare is for economy class on one-way HA6819 flight by Hawaiian Airlines for October 7, 2025 which leaves Seattle-Tacoma Intl in Seattle at 17:50 am and arrives at Toronto Toronto Island at 11:57.

Economy class

$136

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Business class

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First class

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Popular Airlines on the Route

The flight Seattle — Toronto is served by 8 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 101 departures per week at the price of from $ 143 . And the most expensive tickets are offered by United Airlines airline - from $ 668.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 511 flights with layovers on the route. The fastest connecting flight is UA1832 by United Airlines takes 6h 38m and the cheapest is HA6819 by Hawaiian Airlines for $136.

AS - Alaska Airlines

from $143

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AC - Air Canada

from $225

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F9 - Frontier Airlines

from $164

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SY - Sun Country Airlines

from $179

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HA - Hawaiian Airlines

from $136

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UA - United Airlines

from $196

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WS - WestJet

from $200

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NK - Spirit Airlines

from $174

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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

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Seattle-Tacoma Intl-SEA

from $136
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Kenmore Air Harbor SPB-LKE

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Toronto airports

Buttonville Municipal-YKZ

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Toronto Island-YTZ

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Pearson International-YYZ

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Airplanes

There are flights to Toronto from Seattle by 8 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

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

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Seattle — Las Vegas

from $62

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Seattle — New York

from $180

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Seattle — Chicago

from $73

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Seattle — Phoenix

from $67

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Seattle — San Diego

from $74

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Seattle — Los Angeles

from $53

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Seattle — Denver

from $243

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Seattle — Dallas

from $72

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Seattle — Boston

from $63

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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

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Seattle — London

from $70

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Seattle — Vancouver

from $57

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Seattle — Cancun

from $63

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Seattle — Paris

from $66

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Seattle — Toronto

from $64

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Seattle — Calgary

from $76

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Seattle — Mumbai

from $80

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Seattle — Montreal

from $68

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Seattle — Amsterdam

from $64

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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.