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 foundRs19,114
Cheapest month to flyJanuary
Average flight time1 hr, 37 mins
Cheapest airport to fly fromBaltimore Washington International
Most popular airlineUnited

Frequently asked questions

The cheapest month to fly from Washington D.C. to Sault Ste Marie Airport is usually January. The cheapest month to fly from Washington D.C. to Toronto Island Airport is usually January. The cheapest month to fly from Washington D.C. to Ottawa International Airport is usually February. And the cheapest month to fly from Washington D.C. to Sudbury Airport is usually February.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Ontario on Friday, 23 January 2026.
Washington Dulles Airport and Washington Ronald Reagan Airport all offer 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 37 minutes.