Cheap Flights from Ontario to Seattle Starting at $20

Helping travelers to find the best flight offers

Cheapest flights from Ontario to Seattle

Average airfares of the route for each month of the year

Airlines operating on route

Direct Flights from Ontario to Seattle

Ontario airports overview

Seattle airports overview

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

Special offers and sales on air tickets from Ontario to Seattle

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

Alternative routes