S$168 Cheap Flights from Toronto to Washington

View S$168 flight on Tue, 26 Aug, 2025Opens in a new window

Popular airlines from Toronto to Washington, DC (IAD-Washington Dulles Intl.)

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Cheap Flights from Toronto to Washington (YTO-IAD)

Prices were available within the past 7 days and start at S$168 for one-way flights and S$284 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Porter Airlines
Wed, 1 Oct - Wed, 15 Oct
YTZ
Toronto
IAD
Washington
S$284 Return, found 5 days ago
S$284
Return
found 5 days ago
Select Porter Airlines flight, departing Wed, 1 Oct from Toronto to Washington, returning Wed, 15 Oct, priced at S$284 found 5 days ago
Air Canada
Wed, 1 Oct - Wed, 15 Oct
YYZ
Toronto
IAD
Washington
S$285 Return, found 5 days ago
S$285
Return
found 5 days ago
Select Air Canada flight, departing Wed, 1 Oct from Toronto to Washington, returning Wed, 15 Oct, priced at S$285 found 5 days ago
Air Canada
Wed, 1 Oct - Wed, 15 Oct
YKF
Kitchener
IAD
Washington
S$285 Return, found 5 days ago
S$285
Return
found 5 days ago
Select Air Canada flight, departing Wed, 1 Oct from Kitchener to Washington, returning Wed, 15 Oct, priced at S$285 found 5 days ago
Delta
Wed, 1 Oct - Wed, 15 Oct
YYZ
Toronto
IAD
Washington
S$292 Return, found 5 days ago
S$292
Return
found 5 days ago
Select Delta flight, departing Wed, 1 Oct from Toronto to Washington, returning Wed, 15 Oct, priced at S$292 found 5 days ago
Porter Airlines
Wed, 1 Oct - Wed, 15 Oct
YTZ
Toronto
IAD
Washington
S$300 Return, found 5 days ago
S$300
Return
found 5 days ago
Select Porter Airlines flight, departing Wed, 1 Oct from Toronto to Washington, returning Wed, 15 Oct, priced at S$300 found 5 days ago
Air Canada
Wed, 1 Oct - Wed, 15 Oct
YYZ
Toronto
IAD
Washington
S$305 Return, found 5 days ago
S$305
Return
found 5 days ago
Select Air Canada flight, departing Wed, 1 Oct from Toronto to Washington, returning Wed, 15 Oct, priced at S$305 found 5 days ago
Delta
Wed, 1 Oct - Wed, 15 Oct
YYZ
Toronto
IAD
Washington
S$308 Return, found 5 days ago
S$308
Return
found 5 days ago
Select Delta flight, departing Wed, 1 Oct from Toronto to Washington, returning Wed, 15 Oct, priced at S$308 found 5 days ago
Porter Airlines
Fri, 10 Oct - Mon, 13 Oct
YTZ
Toronto
IAD
Washington
S$316 Return, found 2 days ago
S$316
Return
found 2 days ago
Select Porter Airlines flight, departing Fri, 10 Oct from Toronto to Washington, returning Mon, 13 Oct, priced at S$316 found 2 days ago
United
Fri, 29 Aug - Thu, 4 Sep
YYZ
Toronto
IAD
Washington
S$317 Return, found 5 hours ago
S$317
Return
found 5 hours ago
Select United flight, departing Fri, 29 Aug from Toronto to Washington, returning Thu, 4 Sep, priced at S$317 found 5 hours ago
American Airlines
Fri, 29 Aug - Thu, 4 Sep
YYZ
Toronto
IAD
Washington
S$923 Return, found 5 hours ago
S$923
Return
found 5 hours ago
Select American Airlines flight, departing Fri, 29 Aug from Toronto to Washington, returning Thu, 4 Sep, priced at S$923 found 5 hours ago

Find the cheapest month to fly from Toronto (YTO) to Washington (IAD)

May is typically the cheapest month to fly

From S$195 - S$442 per traveller.

Graph displaying average flight prices per month

Toronto to Washington route information
Origin airport
Billy Bishop Toronto City
Destination airport
Washington Dulles Intl.
Return price
S$284
Distance
541 km

Flights from Ontario to Chantilly

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Frequently asked questions

How much is a flight from Toronto (YTO-All Airports) to IAD?
Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Toronto (YTO-All Airports) to Washington Dulles Intl. Airport (IAD) start from S$284. Make your booking today to secure the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Toronto (YTO-All Airports) to IAD?
This differs from airline to airline, as each one has its own terms and conditions. Visit the Customer Service Portal, where you'll find instructions on how to cancel your flight online.
How do I find cheap flights from Toronto (YTO-All Airports) to Dulles Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Toronto (YTO-All Airports) to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Toronto (YTO-All Airports) to IAD?
You won't have time for a movie marathon on this flight — it's only 550 kilometres from Ontario to Chantilly. Find your seat, get comfortable and you'll be touching down before long.
Which airlines fly direct from Toronto (YTO-All Airports) to Washington Dulles Intl. Airport (IAD)?
United Airlines (UA) is a top option. It offers 121 flights between Toronto (YTO-All Airports) and Washington Dulles Intl. Airport (IAD) each month. If you'd like more options, check out the deals with Air Canada (AC). This carrier offers 91 monthly flights between these airports.
Are Toronto (YTO-All Airports) to IAD flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Toronto (YTO-All Airports) to Dulles Intl. Airport can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out! If you'd rather play it safe and start your trip planning early on, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines list their prices that far in advance. Our suggestion? Check back often as prices are updated regularly.

Explore a world of travel with Expedia

Toronto Airports

Toronto

Pearson Intl. to Washington
S$284.30

Kitchener

*Available to Expedia members.