Cheap flights from Ontario to Seattle
Travel > North America > United States > Ontario to Seattle flights
Named after the Native American Chief Sealth, Seattle has a magnificent setting for a city with Lake Washington behind, the snowy peak of Mount Rainier in the distance and the shore of Elliott Bay at its feet.... (read more in our Seattle Travel Guide)
Check current prices for flights to Seattle at our partners' sites:
Search and Compare cheap Flights

Cheapest flights found for the next 6 months
(click city name to see more / use right arrow to view later months)From |
| more | |||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Kitchener | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Toronto | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Windsor |
Check our newest flight offers to Seattle:
- $487
Westjet
cheapoair.com check priceFrom To Departure Time Toronto, ON (YYZ) Seattle, WA (SEA) 06/01/2025 08:00 am Seattle, WA (SEA) Toronto, ON (YYZ) 06/07/2025 07:05 am - $521
Multiple Airlines
cheapoair.com check priceFrom To Departure Time Toronto, ON (YYZ) Seattle, WA (SEA) 06/01/2025 08:00 am Seattle, WA (SEA) Toronto, ON (YYZ) 06/07/2025 07:30 am
Recently found cheap flight deals
Portland To Beijing Cathay Pacific airfares from Portland in March
$3362 Depart: 03/21/2025
Return: 03/29/2025
provided by Cheapoair.com
San Jose To Auckland Multiple Airlines airfares from San Jose in April
$1339 Depart: 04/05/2025
Return: 04/15/2025
provided by Cheapoair.com
San Antonio To Kona Alaska Airlines airfares from San Antonio in November
$566 Depart: 11/12/2024
Return: 11/20/2024
provided by Cheapoair.com
Montreal To Delhi Multiple Airlines airfares from Montreal in March
$1352 Depart: 03/03/2025
Return: 03/14/2025
provided by Cheapoair.com
Spartanburg To Houston Alaska Airlines airfares from Spartanburg in May
$2948 Depart: 05/13/2020
Return: 05/19/2020
provided by FlyFar
Houston To Newark Frontier Airlines airfares from Houston in May
$718 Depart: 05/27/2025
Return: 06/03/2025
provided by Cheapoair.com
Charlotte To Munich British Airways airfares from Charlotte in May
$1161 Depart: 05/07/2025
Return: 05/27/2025
provided by Cheapoair.com
Seattle To Portland Spirit Airlines airfares from Seattle in April
$206 Depart: 04/02/2025
Return: 04/09/2025
provided by Cheapoair.com
Long Beach To Minneapolis Alaska Airlines airfares from Long Beach in November
$2593 Depart: 11/27/2020
Return: 12/08/2020
provided by Cheapoair.com
Specify your search details. Browse the cheapest flights from Ontario to Seattle, Seattle hotel rooms and Ontario to Seattle vacation packages from the most popular providers, airline consolidators and travel search engines.