Cheap Flights from Seattle, WA to Toronto, ON from $100
On Cheapflightsplus.com you will find 3 direct and 857 connecting flights from Seattle to Toronto. You can compare airfare deals from 8 airlines and multiple travel sites from $100, 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
Best Flights from Seattle to Toronto Today
Price | Departure | Arrival | Flight Duration | Airline | Flight |
---|---|---|---|---|---|
from $118 | 07:23 Seattle Seattle-Tacoma Intl | 15:00 Toronto Pearson International | 4h 37m | Alaska Airlines | AS972 |
from $280 | 11:35 Seattle Seattle-Tacoma Intl | 19:15 Toronto Pearson International | 4h 40m | Air Canada | AC540 |
from $282 | 11:35 Seattle Seattle-Tacoma Intl | 19:15 Toronto Pearson International | 4h 40m | United Airlines | UA8031 |
from $100 | 17:50 Seattle Seattle-Tacoma Intl | 11:57+1 день Toronto Toronto Island | 15h 7m layover 9h 16m - Chicago | Hawaiian Airlines | HA6819 PD2388 |
from $105 | 17:55 Seattle Seattle-Tacoma Intl | 11:57+1 день Toronto Toronto Island | 15h 2m layover 9h 16m - Chicago | Alaska Airlines | AS538 PD2388 |
from $105 | 13:39 Seattle Seattle-Tacoma Intl | 11:57+1 день Toronto Toronto Island | 19h 18m layover 13h 27m - Chicago | Alaska Airlines | AS410 PD2388 |
from $111 | 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 $111 | 05:00 Seattle Seattle-Tacoma Intl | 22:36 Toronto Pearson International | 14h 36m layover 6h 56m - Houston | United Airlines | UA1668 UA313 |
from $111 | 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 $116 | 13:45 Seattle Seattle-Tacoma Intl | 00:05+1 день Toronto Pearson International | 7h 20m layover 1h 37m - Vancouver | Air Canada | AC8805 AC186 |
from $116 | 13:45 Seattle Seattle-Tacoma Intl | 01:05+1 день Toronto Pearson International | 8h 20m layover 2h 37m - Vancouver | Air Canada | AC8805 AC124 |
from $116 | 07:20 Seattle Seattle-Tacoma Intl | 19:46 Toronto Toronto Island | 9h 26m layover 2h 56m - Montreal | Air Canada | AC512 AC7975 |
from $119 | 13:55 Seattle Seattle-Tacoma Intl | 23:58 Toronto Pearson International | 7h 3m layover 1h 2m - Chicago | United Airlines | UA2665 UA1756 |
from $119 | 23:50 Seattle Seattle-Tacoma Intl | 09:58+1 день Toronto Pearson International | 7h 8m layover 1h 11m - Chicago | United Airlines | UA747 UA5640 |
from $114 | 14:55 Seattle Seattle-Tacoma Intl | 05:50+1 день Toronto Pearson International | 11h 55m layover 2h 0m - Vancouver 3h 27m - Calgary | Air Canada | AC8807 AC224 AC154 |
from $119 | 17:14 Seattle Seattle-Tacoma Intl | 09:19+1 день Toronto Pearson International | 13h 5m layover 0h 50m - Los Angeles 2h 29m - Newark | United Airlines | UA2397 UA2397 UA3702 |
Flight Schedule Seattle (Washington) to Toronto (Ontario)
Departure | Arrival | Flight Details | Flight Duration | Price |
---|---|---|---|---|
07:23 — 15:00
|
07:23 — 15:00
AS972
Alaska Airlines
Seattle — Toronto
|
4h 37m |
Find flight
from$118 |
|
11:35 — 19:15
|
11:35 — 19:15
AC540
Air Canada
Seattle — Toronto
|
4h 40m |
Find flight
from$280 |
|
11:35 — 19:15
|
11:35 — 19:15
UA8031
United Airlines
Seattle — Toronto
|
4h 40m |
Find flight
from$282 |
|
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$120 |
|
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$120 |
|
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$111 |
|
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$131 |
|
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$132 |
|
07:20 — 19:46
|
07:20 — 15:30
AC512
Air Canada
Seattle — Montreal
2h 56m stop
18:25 — 19:50
AC7975
Air Canada
Montreal — Toronto
|
9h 26m including layover |
Find flight
from$116 |
|
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$134 |
|
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$140 |
|
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$111 |
|
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$105 |
|
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$135 |
|
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$133 |
|
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$128 |
|
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$100 |
|
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$105 |
|
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$132 |
|
19:59 — 12:56
+1 day
|
19:59 — 23:50
UA757
United Airlines
Seattle — Denver
7h 55m stop
07:45 — 12:56
UA8456
United Airlines
Denver — Toronto
|
13h 57m including layover |
Find flight
from$119 |
|
19:59 — 15:11
+1 day
|
19:59 — 23:50
UA757
United Airlines
Seattle — Denver
10h 6m stop
09:56 — 15:11
UA1874
United Airlines
Denver — Toronto
|
16h 12m including layover |
Find flight
from$119 |
|
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$111 |
|
22:15 — 17:09
+1 day
|
22:15 — 06:12
UA2402
United Airlines
Seattle — Washington D.C.
9h 18m stop
15:30 — 17:09
UA3652
United Airlines
Washington D.C. — Toronto
|
15h 54m including layover |
Find flight
from$119 |
|
23:23 — 17:09
+1 day
|
23:23 — 07:20
UA2019
United Airlines
Seattle — Washington D.C.
8h 10m stop
15:30 — 17:09
UA3652
United Airlines
Washington D.C. — Toronto
|
14h 46m including layover |
Find flight
from$119 |
|
23:37 — 11:44
+1 day
|
23:37 — 07:48
UA299
United Airlines
Seattle — Newark
2h 8m stop
09:56 — 11:44
UA3555
United Airlines
Newark — Toronto
|
9h 7m including layover |
Find flight
from$119 |
|
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$121 |
|
14:55 — 05:50
+1 day
|
14:55 — 16:00
AC8807
Air Canada
Seattle — Vancouver
2h stop
18:00 — 20:28
AC224
Air Canada
Vancouver — Calgary
3h 27m stop
23:55 — 05:50
AC154
Air Canada
Calgary — Toronto
|
11h 55m including layover |
Find flight
from$114 |
|
14:55 — 05:50
+1 day
|
14:55 — 16:00
AC8807
Air Canada
Seattle — Vancouver
3h 30m stop
19:30 — 21:55
AC226
Air Canada
Vancouver — Calgary
2h stop
23:55 — 05:50
AC154
Air Canada
Calgary — Toronto
|
11h 55m including layover |
Find flight
from$114 |
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 37m
- 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 134 $), september (from 141 $), june (from 148 $).
The most expensive months are november (from 539 $), may (from 218 $), december (from 217 $).
What is the lowest airfare Seattle to Toronto?
The cheapest plane ticket found by our users is $100. 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.
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 - 165 departures per week at the price of from $ 105 . And the most expensive tickets are offered by United Airlines airline - from $ 332.
Direct flights
There are 3 nonstop flights on the route. The fastest direct flight is AS972 by Alaska Airlines takes 4h 37m and the cheapest is HA6819 by Hawaiian Airlines for $118.
- AS - Alaska Airlinesfrom $118Find
- AC - Air Canadafrom $280Find
- UA - United Airlinesfrom $282Find
Connecting Flights
There are 857 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 $100.
- AS - Alaska Airlinesfrom $105Find
- AC - Air Canadafrom $114Find
- F9 - Frontier Airlinesfrom $121Find
- SY - Sun Country Airlinesfrom $132Find
- HA - Hawaiian Airlinesfrom $100Find
- UA - United Airlinesfrom $111Find
- WS - WestJetfrom $147Find
- NK - Spirit Airlinesfrom $128Find
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-BFIFind
- Seattle-Tacoma Intl-SEAfrom $100Find
- Kenmore Air Harbor SPB-LKEFind
Toronto airports
- Buttonville Municipal-YKZFind
- Toronto Island-YTZFind
- Pearson International-YYZFind
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 900from $116Find
Top Domestic Destinations from Seattle
You may also consider searching for discounted plane tickets to some other popular places from Seattle within United States.
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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.
- from $77Find
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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.
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