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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.
Toronto.£140 per passenger.Departing Sun, 10 Aug, returning Fri, 15 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Sun, 10 Aug, arriving in Toronto Pearson International.Inbound indirect flight with Air Canada, departs from Toronto Island on Fri, 15 Aug, arriving in Washington Ronald Reagan.Price includes taxes and charges.From £140, select.
Ottawa.£203 per passenger.Departing Wed, 15 Oct, returning Tue, 21 Oct.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Wed, 15 Oct, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Tue, 21 Oct, arriving in Washington Dulles.Price includes taxes and charges.From £203, select.
Thunder Bay.£325 per passenger.Departing Tue, 1 Jul, returning Tue, 15 Jul.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Tue, 1 Jul, arriving in Thunder Bay.Inbound indirect flight with Porter Airlines, departs from Thunder Bay on Tue, 15 Jul, arriving in Washington Dulles.Price includes taxes and charges.From £325, select.
Windsor.£339 per passenger.Departing Fri, 18 Jul, returning Mon, 21 Jul.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Fri, 18 Jul, arriving in Windsor.Inbound indirect flight with Porter Airlines, departs from Windsor on Mon, 21 Jul, arriving in Washington Dulles.Price includes taxes and charges.From £339, select.
Sault Ste Marie.£365 per passenger.Departing Mon, 14 Jul, returning Fri, 18 Jul.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Mon, 14 Jul, arriving in Sault Ste Marie.Inbound indirect flight with Porter Airlines, departs from Sault Ste Marie on Fri, 18 Jul, arriving in Washington Dulles.Price includes taxes and charges.From £365, select.
London.£577 per passenger.Departing Mon, 28 Jul, returning Wed, 30 Jul.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Washington Dulles on Mon, 28 Jul, arriving in London.Inbound indirect flight with WestJet, departs from London on Wed, 30 Jul, arriving in Washington Dulles.Price includes taxes and charges.From £577, select.

Flying from Washington D.C. to Ontario

Arm yourself with these facts on the fly.
Cheapest flight found£140, 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 £140 is the best price. This is good, compared to the average Ontario ticket price of £307.
The cheapest month to fly from Washington D.C. to Sault Ste Marie Airport is usually July. 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 Thunder Bay Airport is usually July. And the cheapest month to fly from Washington D.C. to Windsor Airport is usually July.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Ontario on Sunday, 10 August 2025.
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 Pearson International.
The average flight time between Washington D.C. and Ontario is 1 hour and 36 minutes.