Cheap Flights from Seattle, WA to Toronto, ON from $102

One way Round trip

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On Cheapflightsplus.com you will find 2 direct and 739 connecting flights from Seattle to Toronto. You can compare airfare deals from 8 airlines and multiple travel sites from $102, 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: $102 (one-way), $175 (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 $102. The fastest direct flight takes 4h 40m and the fastest connecting – 6h 11m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $285 Find flight	11:35 Seattle Seattle-Tacoma Intl	19:15 Toronto Pearson International	4h 40m	Air Canada	AC540
from $286 Find flight	11:35 Seattle Seattle-Tacoma Intl	19:15 Toronto Pearson International	4h 40m	United Airlines	UA8031
from $102 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 $107 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 $107 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 $112 Find flight	22:05 Seattle Seattle-Tacoma Intl	14:19+1 день Toronto Pearson International	13h 14m layover 6h 38m - Washington D.C.	United Airlines	UA2402 UA3490
from $112 Find flight	05:00 Seattle Seattle-Tacoma Intl	22:36 Toronto Pearson International	14h 36m layover 6h 56m - Houston	United Airlines	UA1668 UA313
from $112 Find flight	13:00 Seattle Seattle-Tacoma Intl	10:04+1 день Toronto Pearson International	18h 4m layover 11h 25m - Washington D.C.	United Airlines	UA2275 UA3612
from $118 Find flight	14:55 Seattle Seattle-Tacoma Intl	01:05+1 день Toronto Pearson International	7h 10m layover 1h 27m - Vancouver	Air Canada	AC8807 AC124
from $118 Find flight	13:45 Seattle Seattle-Tacoma Intl	01:05+1 день Toronto Pearson International	8h 20m layover 2h 37m - Vancouver	Air Canada	AC8805 AC124
from $121 Find flight	00:20 Seattle Seattle-Tacoma Intl	09:58 Toronto Pearson International	6h 38m layover 0h 36m - Chicago	United Airlines	UA1832 UA5629
from $121 Find flight	00:20 Seattle Seattle-Tacoma Intl	11:49 Toronto Pearson International	8h 29m layover 2h 22m - Chicago	United Airlines	UA1832 UA3601
from $130 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 $133 Find flight	06:00 Seattle Seattle-Tacoma Intl	20:02 Toronto Toronto Island	11h 2m layover 5h 13m - Chicago	Hawaiian Airlines	HA6816 PD2394
from $121 Find flight	23:20 Seattle Seattle-Tacoma Intl	13:04+1 день Toronto Pearson International	10h 44m layover 1h 1m - Washington D.C. 1h 57m - Ottawa	United Airlines	UA2019 UA4562 UA8459
from $123 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

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on June 24, 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
11:35 — 19:15	11:35 — 19:15 AC540 Air Canada Seattle — Toronto	4h 40m	Find flight from$285
11:35 — 19:15	11:35 — 19:15 UA8031 United Airlines Seattle — Toronto	4h 40m	Find flight from$286
00:20 — 09:58	00:20 — 06:28 UA1832 United Airlines Seattle — Chicago 36m stop 07:04 — 09:58 UA5629 United Airlines Chicago — Toronto	6h 38m including layover	Find flight from$121
00:20 — 11:49	00:20 — 06:28 UA1832 United Airlines Seattle — Chicago 2h 22m stop 08:50 — 11:49 UA3601 United Airlines Chicago — Toronto	8h 29m including layover	Find flight from$121
05:00 — 22:36	05:00 — 11:19 UA1668 United Airlines Seattle — Houston 6h 56m stop 18:13 — 22:36 UA313 United Airlines Houston — Toronto	14h 36m including layover	Find flight from$112
05:20 — 01:05 +1 day	05:20 — 06:28 AC8801 Air Canada Seattle — Vancouver 11h 2m stop 17:30 — 01:05 AC124 Air Canada Vancouver — Toronto	16h 45m including layover	Find flight from$133
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$133
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$148
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$150
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$159
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$135
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$149
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$147
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$142
13:00 — 10:04 +1 day	13:00 — 20:57 UA2275 United Airlines Seattle — Washington D.C. 11h 25m stop 08:22 — 10:04 UA3612 United Airlines Washington D.C. — Toronto	18h 4m including layover	Find flight from$112
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$107
14:55 — 01:05 +1 day	15:05 — 16:15 AC8807 Air Canada Seattle — Vancouver 1h 27m stop 22:15 — 05:41 AC124 Air Canada Vancouver — Toronto	7h 10m including layover	Find flight from$118
14:55 — 08:20 +1 day	14:55 — 16:03 AC8807 Air Canada Seattle — Vancouver 8h 42m stop 00:45 — 08:20 AC182 Air Canada Vancouver — Toronto	14h 25m including layover	Find flight from$133
15:58 — 06:20 +1 day	15:20 — 17:51 NK2328 Spirit Airlines Seattle — Las Vegas 4h 29m stop 23:10 — 06:35 PD656 Porter Airlines Las Vegas — Toronto	11h 22m including layover	Find flight from$138
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$135
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$149
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$130
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$102
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$107
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$134
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$144
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$158
20:50 — 06:20 +2 days	20:50 — 23:26 HA4881 Hawaiian Airlines Seattle — Las Vegas 23h 29m stop 22:55 — 06:20 PD656 Porter Airlines Las Vegas — Toronto	30h 30m including layover	Find flight from$158
21:18 — 06:20 +2 days	21:18 — 23:59 HA6757 Hawaiian Airlines Seattle — Las Vegas 22h 56m stop 22:55 — 06:20 PD656 Porter Airlines Las Vegas — Toronto	30h 2m including layover	Find flight from$150
22:05 — 14:19 +1 day	22:05 — 06:02 UA2402 United Airlines Seattle — Washington D.C. 6h 38m stop 12:40 — 14:19 UA3490 United Airlines Washington D.C. — Toronto	13h 14m including layover	Find flight from$112
10:50 — 06:12 +1 day	10:50 — 13:42 F92176 Frontier Airlines Seattle — Los Angeles 4h 23m stop 18:05 — 22:09 WS1515 WestJet Los Angeles — Calgary 2h 11m stop 00:20 — 06:12 WS652 WestJet Calgary — Toronto	16h 22m including layover	Find flight from$123
18:05 — 18:52 +1 day	18:05 — 20:54 HA6765 Hawaiian Airlines Seattle — Los Angeles 10h 6m stop 07:00 — 11:06 WS1513 WestJet Los Angeles — Calgary 1h 54m stop 13:00 — 18:52 WS664 WestJet Calgary — Toronto	21h 47m including layover	Find flight from$157
21:25 — 00:33 +2 days	21:07 — 23:59 HA6771 Hawaiian Airlines Seattle — Los Angeles 11h 7m stop 11:25 — 15:46 WS1423 WestJet Los Angeles — Edmonton 2h 59m stop 18:45 — 00:33 WS438 WestJet Edmonton — Toronto	24h 8m including layover	Find flight from$148
23:20 — 13:04 +1 day	23:20 — 07:17 UA2019 United Airlines Seattle — Washington D.C. 1h 1m stop 08:18 — 09:58 UA4562 United Airlines Washington D.C. — Ottawa 1h 57m stop 11:55 — 13:04 UA8459 United Airlines Ottawa — Toronto	10h 44m including layover	Find flight from$121
23:20 — 15:04 +1 day	23:20 — 07:17 UA2019 United Airlines Seattle — Washington D.C. 1h 1m stop 08:18 — 09:58 UA4562 United Airlines Washington D.C. — Ottawa 3h 57m stop 13:55 — 15:04 UA8484 United Airlines Ottawa — Toronto	12h 44m including layover	Find flight from$121

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

*Departure and arrival times - local. Updated on June 24, 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 4h 40m.

The fastest flight 4h 40m
Average flight time 4h 40m
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 $102. 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

$102

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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 - 146 departures per week at the price of from $ 107 . And the most expensive tickets are offered by WestJet airline - from $ 933.

Direct flights

There are 2 nonstop flights on the route. The fastest direct flight is AC540 by Air Canada takes 4h 40m and the cheapest is HA6819 by Hawaiian Airlines for $285.

AC - Air Canada

from $285

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UA - United Airlines

from $286

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See more direct flights

Connecting Flights

There are 739 flights with layovers on the route. The fastest connecting flight is SY284 by Sun Country Airlines takes 6h 11m and the cheapest is HA6819 by Hawaiian Airlines for $102.

AS - Alaska Airlines

from $107

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AC - Air Canada

from $118

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F9 - Frontier Airlines

from $123

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SY - Sun Country Airlines

from $134

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HA - Hawaiian Airlines

from $102

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UA - United Airlines

from $112

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WS - WestJet

from $150

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NK - Spirit Airlines

from $130

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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 $102
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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 1 aircraft brands. They range from huge modern airplanes to small-sized.

Canadair Regional Jet 900

from $118

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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

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

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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.