Flights from Washington, D.C. to Ontario

Flight deals from Washington, D.C. to Ontario

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

Toronto.$MN2,287 per passenger.Departing Fri, Nov 14.One-way flight with Air Canada.Outbound direct flight with Air Canada departing from Washington Ronald Reagan on Fri, Nov 14, arriving in Toronto Pearson International.Price includes taxes and charges.From $MN2,287, select.

Ottawa.$MN3,677 per passenger.Departing Tue, Oct 28.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departing from Washington Dulles on Tue, Oct 28, arriving in Ottawa International.Price includes taxes and charges.From $MN3,677, select.

Thunder Bay.$MN4,890 per passenger.Departing Thu, Nov 6.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departing from Washington Dulles on Thu, Nov 6, arriving in Thunder Bay.Price includes taxes and charges.From $MN4,890, select.

Windsor.$MN5,233 per passenger.Departing Tue, Oct 21.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departing from Washington Dulles on Tue, Oct 21, arriving in Windsor.Price includes taxes and charges.From $MN5,233, select.

Sault Ste Marie.$MN5,445 per passenger.Departing Tue, Dec 2.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departing from Washington Dulles on Tue, Dec 2, arriving in Sault Ste Marie.Price includes taxes and charges.From $MN5,445, select.

London.$MN6,255 per passenger.Departing Tue, Nov 18.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departing from Washington Dulles on Tue, Nov 18, arriving in London.Price includes taxes and charges.From $MN6,255, select.

North Bay.$MN15,166 per passenger.Departing Sat, Oct 11.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departing from Washington Ronald Reagan on Sat, Oct 11, arriving in North Bay.Price includes taxes and charges.From $MN15,166, select.

See more deals

Flying from Washington, D.C. to Ontario

Arm yourself with these facts on the fly.

Cheapest flight found	$MN2,287
Cheapest month to fly	November
Average flight time	1 hr, 37 mins
Cheapest airport to fly from	Washington Ronald Reagan
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 travelers recently found round-trip flights from $MN5,188 and one-way tickets from $MN2,287. 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 November

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

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 flight prices go up and down

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 plane 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 round-trip flights from Washington, D.C. to Ontario we could find over the next 12 months. It looks like $MN5,188 is the best price. This is good, compared to the average Ontario ticket price of $MN10,073.

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

The cheapest month to fly from Washington, D.C. to Sault Ste Marie Airport is usually December. The cheapest month to fly from Washington, D.C. to Toronto Island Airport is usually November. The cheapest month to fly from Washington, D.C. to Windsor Airport is usually October. And the cheapest month to fly from Washington, D.C. to Thunder Bay Airport is usually December.

On which upcoming date is it cheapest to fly from Washington, D.C. to Ontario?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington, D.C. to Ontario on Saturday, November 15, 2025.

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 to?

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.