Cheap flights from Seattle, WA to Ontario, Vereinigte Staaten (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 115 on Frontier Airlines, departing on 06.01.2025 and returning on 18.01.2025.
The price for these dates could change. Use search to get the best price.
AirlineDeparture dateReturn datePrice
Frontier Airlines06.01.202518.01.2025from 115

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

MonatRound-Trip
November 2024find now
Dezember 202407.12 - 10.12from 122
Januar 202506.01 - 18.01from 115
Februar 2025find now
März 202513.03 - 20.03from 137
April 2025find now
Mai 2025find now
Juni 2025find now
Juli 2025find now
August 2025find now
September 2025find now
Oktober 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
Find Flights to Ontario