Flights from Washington D.C. to Ontario

Flight deals from Washington D.C. to Ontario

Looking for cheap tickets from Washington D.C. to Ontario, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Flying from Washington D.C. to Ontario

Arm yourself with these facts on the fly.
Cheapest flight found$272, Toronto
Cheapest month to flyAugust
Average flight time1 hr, 37 mins
Cheapest airport to fly fromWashington Ronald Reagan
Most popular airlineUnited

Frequently asked questions

We looked at all of the upcoming return flights from Washington D.C. to Ontario we could find over the next 12 months. It looks like $272 is the best price. This is good, compared to the average Ontario ticket price of $702.
The cheapest month to fly from Washington D.C. to Toronto Pearson International Airport is usually August. The cheapest month to fly from Washington D.C. to Windsor Airport is usually July. The cheapest month to fly from Washington D.C. to London Airport is usually July. And the cheapest month to fly from Washington D.C. to Ottawa International Airport is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Ontario on Monday, 4 August 2025.
Washington Ronald Reagan Airport offers direct flights to Ontario.
If you're flying from Washington D.C., the cheapest city in Ontario to fly into is Toronto. The cheapest airport serving Toronto at the moment is Toronto Island.
The average flight time between Washington D.C. and Ontario is 1 hour and 36 minutes.