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.£145 per passenger.Departing Thu, 12 Mar, returning Thu, 19 Mar.Return flight with Porter Airlines.Outbound direct flight with Porter Airlines departs from Washington Dulles on Thu, 12 Mar, arriving in Toronto Island.Inbound direct flight with Porter Airlines departs from Toronto Island on Thu, 19 Mar, arriving in Washington Dulles.Price includes taxes and charges.From £145, select.

Ottawa.£201 per passenger.Departing Thu, 12 Mar, returning Wed, 1 Apr.Return flight with Frontier Airlines and Porter Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Thu, 12 Mar, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Wed, 1 Apr, arriving in Washington Dulles.Price includes taxes and charges.From £201, select.

Windsor.£325 per passenger.Departing Tue, 7 Apr, returning Thu, 9 Apr.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Tue, 7 Apr, arriving in Windsor.Inbound indirect flight with Porter Airlines, departs from Windsor on Thu, 9 Apr, arriving in Washington Dulles.Price includes taxes and charges.From £325, select.

London.£372 per passenger.Departing Tue, 7 Apr, returning Tue, 14 Apr.Return flight with Spirit Airlines and WestJet.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Tue, 7 Apr, arriving in London.Inbound indirect flight with WestJet, departs from London on Tue, 14 Apr, arriving in Baltimore Washington International.Price includes taxes and charges.From £372, select.

Sudbury.£407 per passenger.Departing Thu, 9 Apr, returning Thu, 16 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Thu, 9 Apr, arriving in Sudbury.Inbound indirect flight with Air Canada, departs from Sudbury on Thu, 16 Apr, arriving in Washington Ronald Reagan.Price includes taxes and charges.From £407, select.

Thunder Bay.£416 per passenger.Departing Thu, 2 Jul, returning Tue, 7 Jul.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Thu, 2 Jul, arriving in Thunder Bay.Inbound indirect flight with Porter Airlines, departs from Thunder Bay on Tue, 7 Jul, arriving in Washington Dulles.Price includes taxes and charges.From £416, select.

Sault Ste Marie.£431 per passenger.Departing Wed, 8 Apr, returning Wed, 15 Apr.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Wed, 8 Apr, arriving in Sault Ste Marie.Inbound indirect flight with Porter Airlines, departs from Sault Ste Marie on Wed, 15 Apr, arriving in Washington Dulles.Price includes taxes and charges.From £431, select.

North Bay.£916 per passenger.Departing Tue, 7 Apr, returning Tue, 14 Apr.Return flight with Spirit Airlines and Bearskin Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Tue, 7 Apr, arriving in North Bay.Inbound indirect flight with Bearskin Airlines, departs from North Bay on Tue, 14 Apr, arriving in Baltimore Washington International.Price includes taxes and charges.From £916, select.

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Flying from Washington D.C. to Ontario

Arm yourself with these facts on the fly.

Cheapest flight found	£145
Cheapest month to fly	March
Average flight time	1 hr, 36 mins
Cheapest airport to fly from	Washington Dulles
Most popular airline	United

How to find cheap flights from Washington D.C. to Ontario

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Washington D.C. to Ontario. Other savvy travellers recently found return flights from £145 and one-way tickets from £59 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from Washington Dulles into Toronto Island

At the moment, the lowest priced flight tickets to Ontario are from Washington Dulles Airport to Toronto Island Airport.

Fly in March

We crunched the flight calendar and found the cheapest time to fly from Washington D.C. to Ontario is currently March.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Washington D.C. to anywhere you choose in Ontario.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Washington D.C. to Ontario go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Ontario to Ontario flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average Washington D.C. to Ontario flight price?

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 £145 is the best price. This is good, compared to the average Ontario ticket price of £465.

What is the cheapest month to fly from Washington D.C. to Ontario?

The cheapest month to fly from Washington D.C. to Ottawa International Airport is usually March. The cheapest month to fly from Washington D.C. to Thunder Bay Airport is usually July. The cheapest month to fly from Washington D.C. to Toronto Island Airport is usually March. And the cheapest month to fly from Washington D.C. to Sault Ste Marie Airport is usually April.

Which upcoming date is cheapest to fly from Washington D.C. to Ontario on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Ontario on Thursday, 12 March 2026.

Are there any direct flights from Washington D.C. to Ontario?

Washington Dulles Airport offers direct flights to Ontario.

If I'm flying from Washington D.C., where in Ontario is cheapest to fly into?

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.