IAD - YTO

C$ 155 Find Cheap Flights from Washington Dulles Airport to Toronto – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Toronto departing on 6/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 331
Typical prices: C$ 325-C$ 447
Air Canada
Thu 20/8Sat 29/8
IAD - YTZ • Direct
Cheapest one-way flights
C$ 155
Air Canada
Thu 6/8
IAD - YTZ • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
United Economy Plus adds 15 cm legroom; Air Canada Preferred Economy adds 10 cm.
Porter’s no middle seats stand out, while Air Canada Aeroplan adds free messaging.
Expert advice
Expert advice
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Expert advice
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Top airlines
Cheapest • from C$ 331 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Direct flights
You can fly direct with Air Canada, Porter Airlines, and United Airlines. Average duration is 1h 34m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest • 33% average savings
Most popular
Insights
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Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 53% compared to booking last minute.
Insights
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When to travel
Cheapest • 46% price drop
Most popular
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Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Dulles Intl to Toronto (IAD-YTO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Toronto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Toronto

Thu, 20 Aug - Sat, 29 Aug
Air Canada Logo
5:15 p.m. - 6:46 p.m.
IAD
-
YTZ
1h 31mdirect
Air Canada Logo
3:15 p.m. - 4:38 p.m.
YTZ
-
IAD
1h 23mdirect
C$ 331Air Canada
Sat, 18 Jul - Thu, 23 Jul
Air Canada Logo
5:15 p.m. - 6:46 p.m.
IAD
-
YTZ
1h 31mdirect
Air Canada Logo
3:15 p.m. - 4:38 p.m.
YTZ
-
IAD
1h 23mdirect
C$ 335Air Canada
Thu, 13 Aug - Mon, 17 Aug
Multiple Airlines Logo
5:15 p.m. - 6:46 p.m.
IAD
-
YTZ
1h 31mdirect
Multiple Airlines Logo
1:40 p.m. - 3:10 p.m.
YTZ
-
IAD
1h 30mdirect
C$ 336Multiple Airlines
Thu, 23 Jul - Mon, 27 Jul
Porter Airlines Logo
3:55 p.m. - 5:25 p.m.
IAD
-
YTZ
1h 30mdirect
Porter Airlines Logo
1:40 p.m. - 3:11 p.m.
YTZ
-
IAD
1h 31mdirect
C$ 339Porter Airlines
Sun, 2 Aug - Fri, 7 Aug
Porter Airlines Logo
11:25 a.m. - 12:55 p.m.
IAD
-
YTZ
1h 30mdirect
Porter Airlines Logo
1:40 p.m. - 3:10 p.m.
YTZ
-
IAD
1h 30mdirect
C$ 345Porter Airlines
Thu, 23 Jul - Sun, 26 Jul
Porter Airlines Logo
3:55 p.m. - 5:25 p.m.
IAD
-
YTZ
1h 30mdirect
Porter Airlines Logo
8:55 a.m. - 10:25 a.m.
YTZ
-
IAD
1h 30mdirect
C$ 346Porter Airlines
Sun, 19 Jul - Thu, 23 Jul
Air Canada Logo
4:20 p.m. - 5:50 p.m.
IAD
-
YYZ
1h 30mdirect
Air Canada Logo
1:55 p.m. - 3:24 p.m.
YYZ
-
IAD
1h 29mdirect
C$ 346Air Canada
Thu, 23 Jul - Mon, 27 Jul
Porter Airlines Logo
3:55 p.m. - 5:25 p.m.
IAD
-
YTZ
1h 30mdirect
Porter Airlines Logo
1:40 p.m. - 3:11 p.m.
YTZ
-
IAD
1h 31mdirect
C$ 348Porter Airlines
Thu, 23 Jul - Tue, 28 Jul
Porter Airlines Logo
3:55 p.m. - 5:25 p.m.
IAD
-
YTZ
1h 30mdirect
Porter Airlines Logo
8:55 a.m. - 10:25 a.m.
YTZ
-
IAD
1h 30mdirect
C$ 349Porter Airlines
Wed, 29 Jul - Sat, 8 Aug
Porter Airlines Logo
11:05 a.m. - 12:35 p.m.
IAD
-
YTZ
1h 30mdirect
Porter Airlines Logo
1:40 p.m. - 3:10 p.m.
YTZ
-
IAD
1h 30mdirect
C$ 351Porter Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Toronto flights

Get data-powered insights and trends into flights from Dulles Intl to Toronto to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Toronto?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Toronto departing in August.

What is the cheapest Washington, D.C. Dulles Intl Airport to Toronto flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. Dulles Intl Airport to Toronto costs C$ 153 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Toronto Pearson Intl Airport (YYZ). Over the past month, flights between Washington, D.C. Dulles Intl Airport (IAD) and Toronto Island Airport (YTZ) were, on average, 33% cheaper than other Washington, D.C. Dulles Intl Airport-Toronto routes. This is also the most popular route.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Toronto?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Toronto clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to Toronto, you should consider leaving on a Sunday and avoid Fridays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Toronto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Toronto, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Toronto is September, where tickets cost C$ 77 (return) on average. On the other hand, the most expensive months are February and August, where the average cost of round-trip tickets is C$ 254 and C$ 173 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Toronto?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 325 on average.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Toronto?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Toronto, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Toronto, you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

Expert advice for your flight from Dulles Intl to Toronto

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Air Canada and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

John Walton

John Walton

Expert on Porter Airlines

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Mark Stachiew

Mark Stachiew

Expert on YYZ

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Jennifer Bain

Jennifer Bain

Expert on YTZ

Jennifer Bain is a Canadian travel writer who takes at least 50 flights a year and has proudly visited all 13 of Canada's provinces and territories. She is a former newspaper travel editor who has written three travel books. Jennifer is the Canada editor for U.S.-based National Parks Traveler and freelances for numerous other outlets.

Good to know

Low seasonNovember
Cheapest flightC$ 155
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 4% lower on average.
Flight from Washington, D.C. to Toronto Island

When to book flights from Dulles Intl to Toronto

Are your dates flexible? Find out the best times to travel from Dulles Intl to Toronto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Dulles Intl to Toronto: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Dulles Intl to Toronto 
SamFlew with Air Canada
IAD
-
YYZ
Jan 2025
Do not rush to know the gate. almost anytime I have a trip to Toronto the gate changes and I walk a long distance to the new gate. for me this time around 30 minutes.
Verified travelerFlew with Air Canada
IAD
-
YYZ
Apr 2024
Grab the first class seat, it is worth the extra money for the comfort and nice meal for such a quick flight.

FAQs for booking Washington Dulles Airport to Toronto flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Toronto?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Toronto was C$ 155 for a one-way ticket and C$ 331 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Toronto?

    Air Canada, United Airlines, Porter Airlines, and American Airlines offer inflight Wi-Fi service on the Washington Dulles Airport to Toronto flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Toronto?

    The De Havilland (Bombardier) DHC-8-400 Dash 8Q is the aircraft model that flies most regularly on the Washington Dulles Airport to Toronto flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Toronto?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Toronto.

  • On which days can I fly direct from Washington Dulles Airport to Toronto?

    There are direct flights from Washington Dulles Airport to Toronto on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Toronto, Porter Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Toronto are Porter Airlines and Air Canada. With an average price for the route of C$ 326 and an overall rating of 7.9, Porter Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 539 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Toronto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Toronto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Toronto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Toronto from Washington Dulles Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Toronto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Toronto with an airline and back to Washington Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Toronto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Toronto from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Toronto

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 250 or less one-way and C$ 414 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Toronto?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Toronto.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Toronto, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Toronto

Monday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Tuesday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Wednesday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Thursday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Friday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Saturday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Sunday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

See more nonstop flights

Direct returns

Toronto to Washington, D.C. Dulles Intl

Monday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Tuesday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Wednesday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Thursday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Friday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Saturday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Sunday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

See more nonstop flights

Reviews of the top airlines flying from Dulles Intl to Toronto

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Toronto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Toronto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Porter AirlinesOverall score based on 442 reviews
6.9Entertainment
8.6Crew
7.5Food
7.9Comfort
8.2Boarding
Airline reviews

A few improvements: 1. No signages at the airport that the porter airline was a codeshare and i could check-in at American counter. 2. Crew at the gate said they couldn't change my reward to Alaska - despite that being done previously 3. Despite there being many open seats, i was assigned a seat at the very back near lavatory, last row. Fortunately, the pilot wanted more people moved up so the flight attendants moved me up. It seemed very odd to have been stuck in last row with very few people nearby..

6.0 GoodHarsh, Apr 2026
JFK - YYZ
Read more Porter Airlines reviews

A few improvements: 1. No signages at the airport that the porter airline was a codeshare and i could check-in at American counter. 2. Crew at the gate said they couldn't change my reward to Alaska - despite that being done previously 3. Despite there being many open seats, i was assigned a seat at the very back near lavatory, last row. Fortunately, the pilot wanted more people moved up so the flight attendants moved me up. It seemed very odd to have been stuck in last row with very few people nearby..

Much roomer than air Canada! Great flight for the price. No complaints

As a first time flyer with Porter I was happy with the service and comfort of the airline.

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

The flight was half empty yet they charged me $50 for a basic carry on! I saw how passengers of different colors were treated differently.

Three hours on the tarmac with almost zero communication from the cockpit. Not when offered a water in the interim. In my 67 years of flying all over the world the worst experience ever. The plane was half empty, however had to pay for seats to sit next to my girlfriend. Extra to take a carry on. I would never fly Porter again even for free.

Flight was delayed over 2 hours, then landed at a different airport!

Overall very good... staff were friendly and helpful. boarding was good for the most part, but a little hard to get our carry-on bags on there.... I think people should be directed to keep their coats and small bags with them until all the carry-ons are loaded, and then, if there is space, they can put their small bags and coats up top.. makes it much easier to put baggage up. i loved the internet feature, but the entertainment was not there unless you have your own Netflix or similar platform. My chair did not recline, which was very annoying, and the arms won't go up near the isle, which makes it tough to get in and out of the seat.

We were given a complimentary seat upgrade which was so unexpected but so lovely!

Porter is what Westjet used to be. Staff were great

Flight home was delayed multiple times, did not get home until 2am

Great crew and the plane was very nice! The problem was that we didn’t have WiFi on both of my flights. I found that to be very disappointing today when all the other airlines always have WiFi so I could work or watch a movie.

It was my first time booking from kayak and first time with Air Canada and I must say it was cheep and flight and experience was so good. My favorite KAYAK now🥰

Overall I will say it was a very good experience. It was as comfortable as can be expected for such a long flight - 12 hours from Toronto to Tokyo. Everyone was very pleasant and polite. Even the passengers were cooperative and trying to be nice to each other. Of course the space is limited on such a long flight. The bathrooms were actually very clean. The food was very good. I liked how there was a variety of food options. The in flight entertainment system was also very impressive! There were some children on the flight but they were well behaved and hardly ever crying. Great Job Canada Air! I will definitely fly with Air Canada again!

Flight was delay for 3hours then later canceled. I missed my work. It was a bit ectic and frustrating

Flight was great comfortable seating..only discomfort was due to the turbulence.

Complimentary upgrade on first leg. Comfortable and mostly on time

Poor service after they realized they didn’t scan my boarding pass on the 1st leg of my flight

I paid for priority but my flight was delayed. They rebooked my flight to other airline. I got an economy seat. Total waste.

My trip was good with no waiting time and it was on time flight. Overall it was no hassle during the flight interning airport to board and coming out from the arrival airport.

Everything you need to know for your flight from Dulles Intl to Toronto

Information on your arrival and departure airports