Cheap flights from Seattle, WA to Ontario, États-Unis (SEA - ONT)

As a rule, buying flight tickets from Seattle, WA to Ontario expends a lot. Using our service of searching for cheap flight tickets, you will be able to save a significant sum of money! We will help tip to buy flight tickets from Seattle, WA to Ontario at the most favorable prices.

Out service helps you to find tickets from Seattle, WA to Ontario in the most reliable travel agencies and booking systems, including all the airline companies. We don't sell tickets and don't do any surcharges, we just find the best offers - you choose yourself where you want to buy flight tickets Seattle, WA - Ontario at the best price!

We also recommend you to look through the prices for return tickets from Ontario to Seattle, WA.

Airfares found by our users in the past 24 hours

The cheapest flight from Seattle, WA to Ontario is 122€ on Frontier Airlines, departing on 02.01.2025 and returning on 12.01.2025.
The price for these dates could change. Use search to get the best price.
AirlineDeparture dateReturn datePrice
Frontier Airlines02.01.202512.01.2025from 122€

Average round-trip airfares from Seattle, WA to Ontario by months

MoisRound-Trip
décembre 202420.12 - 24.12from 624€
janvier 202502.01 - 12.01from 122€
février 2025find now
mars 202505.03 - 22.03from 182€
avril 2025find now
mai 2025find now
juin 2025find now
juillet 2025find now
août 2025find now
septembre 2025find now
octobre 2025find now
novembre 2025find now

The price which were found by our clients for the latest several days. Given ticket prices could change. It's connected with the presence of flight tickets while booking.

Airlines are flying from Seattle, WA to Ontario

American Airlines

Airports

Airports in Seattle, WA: King County/Boeing (BFI), Seattle/Tacoma Intl (SEA).

Airports in Ontario: Odate Noshiro (ONO), Ontario (ONT).

Find Flights to Ontario