How to find the cheapest flight from
Ontario (ONT) to Washington
How far in advance should I book a flight from Ontario to Washington?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 27 days in advance, which can save you up to 58% on flights from Ontario to Washington compared to booking the week you need them. Waiting 27 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $136. For sooner than that we have options available in the next 3 days from $197.
One-way flights to Washington from Ontario
The cheapest one-way flights from Ontario to Washington
4:00 am - 9:02 am
Sun Country Air
2:12 pm - 8:51 pm
2:17 pm - 8:56 am
Related info for your journey
Useful info, stats and facts about Ontario to Washington flights.
Arrival points for flights from Ontario to Washington
Destination information for Washington
Things to know before you go. Useful info for your trip from Ontario to Washington
Deer Harbor (DHB)
Eastsound Orcas Island (ESD)