SEA

C$ 210 Find Cheap Flights from Ontario to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 25/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 274
Overall average: C$ 419
Alaska Airlines
Wed 14/1Wed 28/1
YYZ - SEA • Direct
Cheapest one-way flights
C$ 210
Typical prices: C$ 270-C$ 641
Air Canada
Sat 25/4
YYZ - SEA • Direct
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Ontario to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Seattle

Wed, 14 Jan - Wed, 28 Jan
Alaska Airlines Logo
4:45 p.m. - 7:17 p.m.
YYZ
-
SEA
5h 32mdirect
Alaska Airlines Logo
7:55 a.m. - 3:35 p.m.
SEA
-
YYZ
4h 40mdirect
C$ 274Alaska Airlines
Sat, 23 May - Mon, 1 Jun
WestJet Logo
1:30 p.m. - 8:28 p.m.
YYZ
-
SEA
9h 58m1 stop
WestJet Logo
7:05 a.m. - 6:52 p.m.
SEA
-
YYZ
8h 47m1 stop
C$ 276WestJet
Sat, 9 May - Sun, 17 May
WestJet Logo
8:00 a.m. - 1:08 p.m.
YYZ
-
SEA
8h 08m1 stop
WestJet Logo
7:05 a.m. - 6:52 p.m.
SEA
-
YYZ
8h 47m1 stop
C$ 277WestJet
Fri, 24 Apr - Sat, 2 May
WestJet Logo
7:45 a.m. - 2:19 p.m.
YYZ
-
SEA
9h 34m1 stop
WestJet Logo
7:05 a.m. - 9:00 p.m.
SEA
-
YYZ
10h 55m2 stops
C$ 280WestJet
Wed, 28 Jan - Mon, 2 Feb
Multiple Airlines Logo
4:45 p.m. - 7:17 p.m.
YYZ
-
SEA
5h 32mdirect
Multiple Airlines Logo
3:10 p.m. - 6:58 a.m.
SEA
-
YYZ
12h 48m2 stops
C$ 281Multiple Airlines
Wed, 14 Jan - Wed, 21 Jan
Air Canada Logo
7:50 p.m. - 10:16 p.m.
YYZ
-
SEA
5h 26mdirect
Air Canada Logo
8:10 a.m. - 3:53 p.m.
SEA
-
YYZ
4h 43mdirect
C$ 290Air Canada
Wed, 14 Jan - Wed, 28 Jan
Multiple Airlines Logo
4:45 p.m. - 7:17 p.m.
YYZ
-
SEA
5h 32mdirect
Multiple Airlines Logo
3:10 p.m. - 5:58 a.m.
SEA
-
YYZ
11h 48m2 stops
C$ 291Multiple Airlines
Wed, 22 Apr - Fri, 24 Apr
United Airlines Logo
6:00 a.m. - 7:00 p.m.
YOW
-
SEA
16h 00m3 stops
United Airlines Logo
7:02 p.m. - 9:11 a.m.
SEA
-
YOW
11h 09m2 stops
C$ 411United Airlines
Mon, 26 Jan - Mon, 2 Feb
Air Canada Logo
8:30 p.m. - 7:16 p.m.
YTZ
-
SEA
25h 46m2 stops
Air Canada Logo
8:00 p.m. - 9:42 a.m.
SEA
-
YTZ
10h 42m2 stops
C$ 412Air Canada
Mon, 23 Feb - Thu, 26 Feb
United Airlines Logo
5:10 a.m. - 9:01 p.m.
YXU
-
SEA
18h 51m3 stops
United Airlines Logo
5:00 a.m. - 5:05 p.m.
SEA
-
YXU
9h 05m2 stops
C$ 1,055United Airlines
Useful Info

Good to know

Low seasonNovember
Cheapest flightC$ 210
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flight from Toronto Pearson Airport to Seattle

FAQs for booking flights from Ontario to Seattle

  • How does KAYAK find such low prices on flights from Ontario to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Lynnwood
Tacoma
Marysville
Centralia
Tukwila
Redmond
Renton
Kent
Bothell
Kirkland
Issaquah
Ellensburg
Ocean Shores
Olympia
Fife
Federal Way
Snoqualmie
Ashford
Puyallup

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Seattle (SEA)