Cheapest flights from Ontario to Seattle
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Ontario to Seattle. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
Cheapest one way flight
$39
Spirit Airlines
Direct flight
2h 58m
04/02/2025
The cheapest one-way flight from Ontario to Seattle departs on 04/02/2025, is operated by Spirit Airlines and costs $39
Cheapest round trip flight
$104
Frontier Airlines
Direct flight
5h 47m
05/31/2025
The cheapest roundtrip flight from Ontario to Seattle departs on 05/31/2025, is operated by Frontier Airlines and costs $104
The fastest flight
2h 49m
Fastest flight from Ontario to Seattle takes 2h 49m
Direct flights
Every day
There are direct flights on this route 7 days a week: Su, Mo, Tu, We, Th, Fr, and Sa
Earliest flight
6:00 AM
Latest flight
7:07 PM
Direct flights count
70
Distance
1557km
Timezone difference
0h
The distance between Ontario and Seattle is 1557km (965 miles). There are 70 direct flights from Ontario to Seattle. Ontario and Seattle are in the same time zone. Flights from Ontario begin at 6:00 AM. The latest flight from Ontario departs at 7:07 PM.
