Fare Guide
Estimated lowest fares found within 7 days
Cheapest Airline
The cheapest airline(s) flying from Ontario to Seattle is Frontier Airlines.
Cheapest Month
February
Travel Period: January 2025 - December 2025
The cheapest month(s) to fly from Ontario to Seattle is February.
Cheapest Day of the Week
Monday
The cheapest day(s) of the week to fly from Ontario to Seattle is Monday.
How far is Seattle from Ontario?
The flight distance between Ontario and Seattle is 1556km. Check all available flights on Wego.
Popular Destinations From Seattle
Popular Destinations From Ontario
Popular Hotels in Seattle
- Palihotel Seattle
- Sonder The Boylston
- Crowne Plaza SEATTLE-DOWNTOWN
- Hilton Motif Seattle
- Fairmont Olympic Hotel - Seattle
- The Charter Hotel Seattle, Curio Collection by Hilton
- Seattle Downtown Lake Union
- La Quinta Inn & Suites by Wyndham Seattle Downtown
- The Westin Seattle
- Residence Inn Seattle Downtown/Lake Union