YTO - IAD

$123 Find Cheap Flights from Toronto to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Toronto to Washington, D.C. departing on 3/12. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to Washington, D.C., 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 Toronto to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$197
Typical prices: $195-$234
Porter Airlines
Fri 4/10Sun 4/12
YTZ - IAD • Non-stop
Cheapest one-way
$123
Air Transat
Thu 3/12
YTZ - IAD • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Porter Airlines' no middle seats policy boosts comfort.
Air Canada's regional jets offer more legroom.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Porter Airlines
Cheapest • from $197 (round-trip)
Porter Airlines
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
YTZ
-
IAD
Cheapest • 21% average savings
YYZ
-
IAD
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 48% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 18% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Toronto to Washington, D.C. (YTO-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Toronto to Washington, D.C. 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 Toronto to Washington, D.C.

Fri, Apr 10 - Sun, Apr 12
Porter Airlines Logo
8:55 am - 10:24 am
YTZ
-
IAD
1h 29mnonstop
Porter Airlines Logo
6:30 pm - 8:00 pm
IAD
-
YTZ
1h 30mnonstop
$197Porter Airlines
Thu, Feb 19 - Thu, Feb 26
Porter Airlines Logo
8:50 am - 10:22 am
YTZ
-
IAD
1h 32mnonstop
Porter Airlines Logo
11:40 am - 1:10 pm
IAD
-
YTZ
1h 30mnonstop
$198Porter Airlines
Fri, Apr 24 - Sun, Apr 26
Air Canada Logo
1:00 pm - 7:40 pm
YYZ
-
IAD
6h 40m
1 stop
Air Canada Logo
9:55 am - 4:39 pm
IAD
-
YYZ
6h 44m
1 stop
$198Air Canada
Mon, Apr 27 - Tue, May 5
Porter Airlines Logo
8:55 am - 10:24 am
YTZ
-
IAD
1h 29mnonstop
Porter Airlines Logo
11:30 am - 1:01 pm
IAD
-
YTZ
1h 31mnonstop
$200Porter Airlines
Mon, Mar 2 - Fri, Mar 6
Porter Airlines Logo
8:55 am - 10:24 am
YTZ
-
IAD
1h 29mnonstop
Porter Airlines Logo
6:30 pm - 8:00 pm
IAD
-
YTZ
1h 30mnonstop
$203Porter Airlines
Thu, Apr 16 - Thu, Apr 23
Air Canada Logo
1:00 pm - 7:40 pm
YYZ
-
IAD
6h 40m
1 stop
Air Canada Logo
9:55 am - 5:28 pm
IAD
-
YYZ
7h 33m
1 stop
$228Air Canada
Fri, Apr 24 - Sun, Apr 26
United Airlines Logo
7:43 pm - 9:25 pm
YYZ
-
IAD
1h 42mnonstop
United Airlines Logo
8:20 am - 10:04 am
IAD
-
YYZ
1h 44mnonstop
$240United Airlines
Tue, May 5 - Wed, May 6
United Airlines Logo
7:00 pm - 11:25 pm
YYZ
-
IAD
4h 25m
1 stop
United Airlines Logo
8:19 am - 10:04 am
IAD
-
YYZ
1h 45mnonstop
$241United Airlines
Tue, Feb 17 - Fri, Feb 27
Delta Logo
7:45 am - 11:53 am
YYZ
-
IAD
4h 08m
1 stop
Delta Logo
6:00 am - 11:18 am
IAD
-
YYZ
5h 18m
1 stop
$242Delta
Tue, Feb 17 - Thu, Feb 26
Delta Logo
12:11 pm - 4:28 pm
YYZ
-
IAD
4h 17m
1 stop
Delta Logo
12:24 pm - 5:18 pm
IAD
-
YYZ
4h 54m
1 stop
$249Delta
Booking Insights

KAYAK's insights & trends for Toronto to Washington, D.C. flights

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

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

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

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

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

The cheapest return flight from Toronto to Washington, D.C. Dulles Intl Airport costs $116 on the route between Toronto Island Airport (YTZ) and Washington, D.C. Dulles Intl Airport (IAD). Over the past month, this route was, on average, 21% cheaper than other Toronto-Washington, D.C. Dulles Intl Airport routes. The most popular route is between Toronto Pearson Intl Airport (YYZ) and Washington, D.C. Dulles Intl Airport (IAD).

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Toronto to Washington, D.C. Dulles Intl Airport, 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 Toronto to Washington, D.C. Dulles Intl Airport is July, where tickets cost $195 (return) on average. On the other hand, the most expensive months are November and October, where the average cost of round-trip tickets is $298 and $272 respectively.

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

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.

No, with an average price for the route of $229, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Toronto to Washington, D.C. Dulles Intl Airport, 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 Toronto to Washington, D.C. Dulles Intl Airport, you should book around 3 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Toronto to Washington, D.C.

 
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, YYZ 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.

James March

James March

Expert on YTZ

For UK-based James March, nothing beats the thrill and chaos of arriving in a new city for the first time, and he tries to put that feeling into his writing and inspire others to travel too. From Birmingham to Blackpool and Leicester to Liverpool, James has reviewed hotels, written narratives and created guides for those who love to travel.

Good to know

Low seasonMarch
Cheapest flight$123
Most popular time to fly and prices are also 12% lower on average.
Flight from Toronto Island to Washington Dulles Airport

When to book flights from Toronto to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Toronto to Washington, D.C. 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 Toronto to Washington, D.C.: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Toronto to Washington, D.C. 
KaseyFlew with Air Canada
YYZ
-
IAD
Jun 2025
Come way early as US customs line up eats up your time
Verified travelerFlew with Air Canada
YYZ
-
IAD
Dec 2024
Get on a regional sized (smaller than Boeing 737 or Airbus A320) jet if you can, they are older and have more legroom than newer aircraft.
Verified travelerFlew with United Airlines
YYZ
-
IAD
Nov 2024
Do not carry bigger the specified sized bags for cabin baggage. Only one carry on ba
Verified travelerFlew with Air Canada
YYZ
-
IAD
Aug 2024
Check the departure board carefully when you get to the airport.

FAQs for booking Toronto to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Toronto to Washington, D.C. Dulles Intl Airport was $123 for a one-way ticket and $197 for a round-trip.

  • Do I need a passport to fly between Toronto and Washington Dulles Airport?

    Yes

  • Which airports will I be using when flying from Toronto to Washington Dulles Airport?

    On your way to Washington Dulles Airport, you’ll fly out from one of these Toronto airports: Toronto Island or Toronto Pearson Intl. You’ll be landing at Washington, D.C. Dulles Intl.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Toronto to Washington, D.C. are Porter Airlines and Air Canada. With an average price for the route of $224 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 $259 and an overall rating of 7.1.

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

    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 Toronto to Washington Dulles Airport.

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

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

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

    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 Washington Dulles Airport with an airline and back to Toronto with another airline.

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

    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 Washington Dulles Airport from Toronto 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 Toronto to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $175 or less one-way and $202 or less round-trip.

Prefer to fly direct from Toronto to Washington Dulles Airport?

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

Direct departures

Toronto to Washington, D.C. Dulles Intl

Monday

Air Canada, Porter Airlines, United Airlines

Air Canada, Porter Airlines, +1 more

Tuesday

Air Canada, United Airlines

Air Canada, United Airlines

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 direct flights

Direct returns

Washington, D.C. Dulles Intl to Toronto

Monday

Air Canada, Porter Airlines, United Airlines

Air Canada, Porter Airlines, +1 more

Tuesday

Air Canada, United Airlines

Air Canada, United Airlines

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 direct flights

Reviews of the top airlines flying from Toronto to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Toronto to Washington, D.C.. 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 Toronto to Washington, D.C.? 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 412 reviews
8.6Crew
8.2Boarding
7.9Comfort
6.9Entertainment
7.5Food
Airline reviews

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

6.0 GoodBeat, Jan 2026
YUL - YVR
Read more Porter Airlines reviews

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

It was okay. Had a thing with the front desk, she had me repack my suitcases to have them be under the weight restrictions, but then the other one was overweight, she argued with me about it when there were tons of people in line. Wasn’t great.

Due to a known technical error that Porter has not fixed in over a year, I was unable to check in the children on my reservation online and had to do it at the airport. Upon check in, there were no seats together, which was an issue as we had young children. The gate agent did manage to seat us together by moving other passengers, which was appreciated, but the other passengers were never informed, leading to confusion and delay upon boarding. The flight was over an hour late; no explanation or apology was ever issued. The bags on Porter take a long time to arrive--over half an hour at Hamilton on my inbound flight, and not much better on my return to Edmonton.

On my e-boarding pass it shows free wifi, yet the plane I was on didn’t have wifi. Please remove false advertising from your website and boarding passes

3.5 hr delay for a 1 hr work flight. No information as to why the delay until 20 mins before boarding.

Organization and the adjusted times but the snacks could be of a bigger portion

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

Poor landing as we overshot the runway and had to re land the plane. Lost both of my luggage not found as of yet. Had to pay extra money for my luggage in USD, now great my luggage is gone. Will not fly with Porter again.

This flight to St. Johns was really good. Boarding was a breeze. We left spot on time. Seats were actually pretty good. Recliner further than I expected. Three more flights to go we will see if this is the status quo for Porter.👍

I was not happy with AirfareAssist, the agency that kayak advised me would be handling my booking. I was advised by porter airlines that I had been overcharged for the Basic express , a option that I had asked airfare assist to help arrange after I realized that the basic fare I had chosen with porter did not include a carryon. At each checkin porter advised I had been overcharged for this . They advised that money would be refunded to my credit card, however, this is not likely to happen as it is not my name and credit card that appeared on the porter invoice, but that of another individual/agent. When airfare assist was arranging the basic express with porter on my behalf, they asked me to confirm that I agreed to pay $263 USD for this. I did agree, as I was advised this was needed to proceed. When I checked the invoice on the porter website and saw that it was not my name and credit card on the invoice, I was advised that this was how airfareassist processed the payment. The Porter invoice indicated a billed amount of $126USD I will not use Kayak or their designated AirfareAssist again

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

Baggage delayed we had to catch our cruise without any clothes 😒

Air Canada Rouge is great. Toronto Airport is the usual nightmare

Good but need to be better with the flight times.

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

Everything you need to know for your flight from Toronto to Washington, D.C.

Information on your arrival and departure airports