IAD - YTO

C$ 122 Find Cheap Flights from Washington Dulles Airport to Toronto

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 9/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Toronto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Toronto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Toronto, as well as popular online travel agencies
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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, 11 Sep - Mon, 15 Sep
Porter Airlines Logo
4:20 p.m. - 5:53 p.m.IAD-YTZ
1h 33mdirect
Porter Airlines Logo
1:35 p.m. - 3:06 p.m.YTZ-IAD
1h 31mdirect
C$ 284Porter Airlines
Find Deal
Thu, 11 Sep - Mon, 15 Sep
Porter Airlines Logo
4:20 p.m. - 5:53 p.m.IAD-YTZ
1h 33mdirect
Porter Airlines Logo
1:35 p.m. - 3:06 p.m.YTZ-IAD
1h 31mdirect
C$ 286Porter Airlines
Find Deal
Thu, 11 Sep - Sun, 14 Sep
Porter Airlines Logo
11:35 a.m. - 1:08 p.m.IAD-YTZ
1h 33mdirect
Porter Airlines Logo
8:45 a.m. - 10:16 a.m.YTZ-IAD
1h 31mdirect
C$ 288Porter Airlines
Find Deal
Thu, 2 Oct - Sun, 5 Oct
Air Canada Logo
10:20 a.m. - 11:52 a.m.IAD-YYZ
1h 32mdirect
Air Canada Logo
8:10 a.m. - 9:38 a.m.YYZ-IAD
1h 28mdirect
C$ 293Air Canada
Find Deal
Wed, 17 Sep - Sat, 20 Sep
Air Canada Logo
10:20 a.m. - 11:52 a.m.IAD-YYZ
1h 32mdirect
Air Canada Logo
12:10 p.m. - 1:38 p.m.YYZ-IAD
1h 28mdirect
C$ 299Air Canada
Find Deal
Mon, 8 Sep - Tue, 16 Sep
United Airlines Logo
3:41 p.m. - 5:19 p.m.IAD-YYZ
1h 38mdirect
United Airlines Logo
12:45 p.m. - 2:25 p.m.YYZ-IAD
1h 40mdirect
C$ 328United Airlines
Find Deal
Mon, 22 Sep - Wed, 24 Sep
 Logo
4:20 p.m. - 5:53 p.m.IAD-YTZ
1h 33mdirect
 Logo
1:35 p.m. - 3:06 p.m.YTZ-IAD
1h 31mdirect
C$ 329
Find Deal
Fri, 19 Sep - Sun, 21 Sep
 Logo
4:20 p.m. - 5:53 p.m.IAD-YTZ
1h 33mdirect
 Logo
8:45 a.m. - 10:16 a.m.YTZ-IAD
1h 31mdirect
C$ 331
Find Deal
Wed, 17 Sep - Sat, 20 Sep
United Airlines Logo
8:28 a.m. - 10:04 a.m.IAD-YYZ
1h 36mdirect
United Airlines Logo
7:47 p.m. - 9:25 p.m.YYZ-IAD
1h 38mdirect
C$ 340United Airlines
Find Deal
Thu, 11 Sep - Mon, 15 Sep
Lufthansa Logo
12:41 p.m. - 2:19 p.m.IAD-YYZ
1h 38mdirect
Lufthansa Logo
6:00 p.m. - 10:39 p.m.YYZ-IAD
4h 39m1 stop
C$ 382Lufthansa
Find Deal
Expert advice

Expert advice for your flight from Dulles Intl to Toronto

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United's Economy Plus offers 15 cm more legroom than standard economy, enhancing comfort on short flights.


Purchase Priority Boarding to secure overhead bin space, especially if in higher boarding zones.

Porter Airlines

Porter's no middle seats ensure either a window or aisle seat for every passenger.


Porter offers free drinks including Canadian wines and craft beers, enhancing the in-flight experience.

Air Canada

Air Canada's Preferred Economy seats offer up to 10 cm extra legroom for added comfort.


Air Canada's Aeroplan offers free messaging Wi-Fi for members, enhancing connectivity on flights.

Read more about Air Canadaby Stefanie Waldek
Airports
IAD

Dulles offers the AeroTrain and mobile lounges for quick terminal transfers. Plan your route using an airport map for efficient navigation.

Read more about IADby Stefanie Waldek
YYZ

Use the Union Pearson Express for a stress-free 25-minute ride to downtown Toronto from YYZ. Trains run every 15 minutes.

Read more about YYZby Mark Stachiew
YTZ

Take the free shuttle from YTZ to Union Station for easy access to downtown Toronto. Shuttles run every 15 minutes.

Read more about YTZby Jennifer Bain
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Air Canada and IAD

Stefanie Waldek

Stefanie Waldek

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.

Read more
John Walton

John Walton

Expert on Porter Airlines

John Walton

John Walton

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.

Read more
Mark Stachiew

Mark Stachiew

Expert on YYZ

Mark Stachiew

Mark Stachiew

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.

Read more
Jennifer Bain

Jennifer Bain

Expert on YTZ

Jennifer Bain

Jennifer Bain

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.

Read more
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?

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 absolute cheapest return flight from Washington, D.C. Dulles Intl Airport to Toronto costs C$ 162 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Toronto Pearson Intl Airport (YYZ). However, over the past month, flights between Washington, D.C. Dulles Intl Airport (IAD) and Toronto Island Airport (YTZ) were, on average, 29% cheaper than other Washington, D.C. Dulles Intl Airport-Toronto routes. The most popular route is between Washington, D.C. Dulles Intl Airport (IAD) and Toronto Pearson Intl Airport (YYZ).

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 Mondays 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 Mondays.

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 June, where tickets cost C$ 317 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is C$ 448 and C$ 432 respectively.

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 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flightC$ 122
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from Washington Dulles Airport to Toronto Pearson Airport

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 CanadaIAD-YYZJan 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 CanadaIAD-YYZApr 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 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Toronto was C$ 88 for a one-way ticket and C$ 205 for a round-trip.

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

    Air Canada, American Airlines, and United 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$ 357 and an overall rating of 8.0, Porter Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 420 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$ 157 or less one-way and C$ 345 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.
8.0
Porter AirlinesOverall score based on 336 reviews
7.6Food
8.2Boarding
8.7Crew
7.0Entertainment
8.0Comfort
Airline reviews

Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.

8.0 ExcellentStephanie, Aug 2025YYZ - LGA
Read more Porter Airlines reviews

Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

The flight was fine see earlier note for the problem

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.

Everything was good except the fact you charge more for a carry on bag vs a check in bag and to top it off in US$ that was not impressive

Our flight was cancelled at the last minute for maintenance reasons and we were rebooked on a late flight when we purposefully booked our flight to be home early due to work.

Seemed like an old plane. Very noisy. The seat cushions were so old that the metal bracing of the seats were poking through. There was plenty of leg room though.

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

The whole experience from check in to deboarding was fantastic.

Just an evening before they canceled my ticket and offered me ticket costing 3 x times more than. I will not fall prey to these scams,Will never book through kayak now. Such a bad experience.

Check in staff was incredibly rude and condescending. When I arrived at the gate I had been charged $125 for a checked back. I did have or check a bag. When I brought this to the attention of the staff member who checked me in, she said that she made a mistake and there was nothing she could do about it. I asked her to remove the charge and refund credit card, she said she could not and that I had to call my credit card company to contest the charge. I called Air Canada customer support, was put on hold, after 43 minutes a received a messages stating customer service was overwhelmed with calls and was then hung up on.

Refreshments and Air Hostess was good. Issues with customs in Toronto caused flight to depart and left me behind twice. Vouchers for delayed flight needs to increase.

Long wait to check in at the priority counter in Toronto

I had no communication, receipt etc from Air Canada until hours before flight

I booked my flight months ago, and checked-in online about 12 hours before the flight. I received an email confirmation of check-in. I had no subsequent communication from Air Canada after my original booking. After arriving at the airport three hours before the flight, as instructed, I waited 90 minutes for an agent to appear to check my bag. I was informed that my flight had been canceled many weeks before, and that flight was no longer being run!! I showed a copy of my check-in confirmation, but no explanation could be found. I was placed on standby for the next flight and the connection. Luckily, those flights were not full and I arrived at my destination. I double checked my email, but I received no update about the flight from Air Canada until the day of the flight.

I was forcefully re-routed to another destination and was delayed a total of 8hours. I have still not received my bags, no one is taking responsibility. The agents at the airport lied to me that I will get to my destination same time as my previous flight where I was forcefully re-routed from.

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

We had a very long delay. First the inbound flight took a while, then maintenance, they “fixed it” to then do boarding and leave the gate, and waste a lot of time to have to go back to the gate and eventually deplane. Had to wait for a new aircraft, wait for a gate, and do the whole thing again. Instead of leaving at 9:50am we left until past 1. I could’ve not woken up at 5am, or spend some more time with my family if they gave more grace period of time between flights to give some time in case of any issues. But they have to make all and every dollar possible

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

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

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