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Dulles Intl

$116+ Cheap flights from Toronto (YTO) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — IAD
jul. 19 — jul. 261
sáb. 7/19
sáb. 7/26
1 adult, Economy
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Cheapflights Tip: The best prices from Toronto to Washington, D.C. Dulles Intl are usually found in June or January, booked 41 days in advance, depart on a Wednesday or Saturday and return on a Friday

Cheap flight deals from Toronto to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 14, 2025.

Round-trip from

$166
(Kiwi.com)

One-way from

$116
(SmartFares)

Popular in

October

Cheapest in

June

Average price

$265

Good round-trip deal

$176 or less

Good one-way deal

$125 or less
From Toronto (YTO) to Washington, D.C. Dulles Intl
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One-way flight from Toronto (YTO) to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 11% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Toronto (YTO) to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Toronto (YTO) to Washington, D.C. Dulles Intl.
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Find flight deals from Toronto to Dulles Intl

Cheapest flights from Toronto to Dulles Intl
Explore the most affordable flight options available from Toronto to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/231:25 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
sáb. 7/264:10 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 7/13$166
This Flightnetwork deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/78:10 amYYZ - IAD
Nonstop1h 27mAir Canada
dom. 8/1010:20 amIAD - YYZ
Nonstop1h 35mAir Canada
Deal found 7/14$178
This SmartFares deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/248:45 amYTZ - IAD
Nonstop1h 31mAir Transat
mar. 7/294:10 pmIAD - YTZ
Nonstop1h 33mAir Transat
Deal found 7/13$183
This Mytrip deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/61:25 pmYTZ - IAD
Nonstop1h 31mMultiple Airlines
mié. 8/134:10 pmIAD - YTZ
Nonstop1h 33mMultiple Airlines
Deal found 7/13$188
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/126:13 pmYYZ - IAD
1 stop4h 53mDelta
mié. 9/241:00 pmIAD - YYZ
1 stop4h 23mDelta
Deal found 7/13$227
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/227:47 pmYYZ - IAD
Nonstop1h 38mUnited Airlines
mié. 7/236:35 amIAD - YYZ
1 stop6h 05mUnited Airlines
Deal found 7/12$270

Cheapflights Fare Finder

Customize your flight search to find flights from Toronto to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 14, 2025.
Use the filters below to find and compare flights from Toronto to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Toronto

Fly to

Dulles Intl

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

vie. 7/25

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

sáb. 7/26

4:10 pm-5:43 pm

Nonstop1h 33m

$166

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

jue. 8/7

8:10 am-9:37 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

dom. 8/10

10:20 am-11:55 am

Nonstop1h 35m

$178

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

jue. 7/24

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

mar. 7/29

4:10 pm-5:43 pm

Nonstop1h 33m

$183

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

mié. 8/6

1:25 pm-2:56 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

mié. 8/13

4:10 pm-5:43 pm

Nonstop1h 33m

$188

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

vie. 9/12

6:13 pm-11:06 pm

1 stop4h 53m

Washington, D.C. Dulles Intl

sáb. 9/27

6:16 pm-10:56 pm

1 stop4h 40m

$227

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

jue. 8/7

1:25 pm-2:56 pm

Nonstop1h 31m

$116

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

jue. 7/24

8:10 am-9:37 am

Nonstop1h 27m

$116

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

lun. 10/13

8:45 am-10:16 am

Nonstop1h 31m

$117

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

mié. 10/1

8:25 am-9:05 pm

1 stop12h 40m

$136

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

sáb. 9/20

6:13 pm-11:06 pm

1 stop4h 53m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

Showing 1-10 of 13 results
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The best insider tips for Toronto to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your Toronto to Washington, D.C. Dulles Intl Airport trip
Airlines
United Airlines

Economy Plus provides extra legroom and priority boarding, enhancing comfort and convenience.


United Club access includes healthy snacks and comfortable seating, ideal for business travelers.

Read more about United Airlinesby Harriet Baskas
Air Canada

Economy Latitude offers priority check-in and two checked bags, ideal for efficient travel.


Preferred Seats offer up to four inches extra space, perfect for added comfort on short flights.

Read more about Air Canadaby Jessica Macdonald
Airports
YYZ

Security lines at YYZ are efficient, moving quickly even during peak times. Arrive early to clear US customs before boarding.

Read more about YYZby Kaitlyn McInnis
YTZ

YTZ offers fast security with rarely long lines. Arrive with time to spare but expect a quick process.

Read more about YTZby Kaitlyn McInnis
IAD

From IAD, the Silver Line Metro reaches downtown in under 40 minutes, offering a cheap and convenient travel option.

Read more about IADby Ramsey Qubein
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Kaitlyn McInnis

Kaitlyn McInnis

Expert on YYZ and YTZ

Kaitlyn McInnis

Kaitlyn McInnis

Kaitlyn is a guidebook author and travel writer splitting her time between Atlantic Canada and Istanbul, Türkiye. She has visited over fifty countries and all seven continents, so she is very familiar with many hotels, airports and airlines around the globe. But her favorite type of vacation is sunbathing by the sea with a good book in hand.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Toronto to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Toronto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Toronto to Washington, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Toronto to Dulles Intl. Price data was last updated on July 11, 2025.

To ensure you get the cheapest price possible for a flight from Toronto to Washington, D.C. Dulles Intl Airport, you should look to book at least 41 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Toronto to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Toronto to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YTO to IAD?

Find hourly flight availability from Toronto to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Toronto to Washington, D.C. Dulles Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 43% on your trip compared to booking a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Toronto to Dulles Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Toronto to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Toronto to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Toronto to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 14, 2025.

The most flights from YTO to IAD are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

How much does it cost to fly round-trip from Toronto to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated julio 14, 2025.
Get a feel of what it's like to fly with Porter Airlines, Delta, and KLM from Toronto to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
306 reviews

Food

7.7

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.7

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Shawn,Jul 2025

EWR - YTZ

First time flying with porter and had an amazing experience. Will definitely use you guys whenever I get the chance. For context I had a flight from EWR to YTZ at 12:00pm. When I arrived early at 09:30 they put me on standby for the 10:00am, which I was able to make
Porter Airlines
8.0
Very good
306 reviews
Porter Airlines
8.0
Very good
306 reviews

Food

7.7

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.7

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Shawn,Jul 2025

EWR - YTZ

First time flying with porter and had an amazing experience. Will definitely use you guys whenever I get the chance. For context I had a flight from EWR to YTZ at 12:00pm. When I arrived early at 09:30 they put me on standby for the 10:00am, which I was able to make
Delta
8.0
Very good
7,953 reviews
Porter Airlines
8.0
Very good
306 reviews

Food

7.7

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.7

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Shawn,Jul 2025

EWR - YTZ

First time flying with porter and had an amazing experience. Will definitely use you guys whenever I get the chance. For context I had a flight from EWR to YTZ at 12:00pm. When I arrived early at 09:30 they put me on standby for the 10:00am, which I was able to make
KLM
7.8
Good
1,372 reviews
Porter Airlines
8.0
Very good
306 reviews

Food

7.7

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.7

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Shawn,Jul 2025

EWR - YTZ

First time flying with porter and had an amazing experience. Will definitely use you guys whenever I get the chance. For context I had a flight from EWR to YTZ at 12:00pm. When I arrived early at 09:30 they put me on standby for the 10:00am, which I was able to make
Air Transat
7.8
Good
414 reviews
Porter Airlines
8.0
Very good
306 reviews

Food

7.7

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.7

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Shawn,Jul 2025

EWR - YTZ

First time flying with porter and had an amazing experience. Will definitely use you guys whenever I get the chance. For context I had a flight from EWR to YTZ at 12:00pm. When I arrived early at 09:30 they put me on standby for the 10:00am, which I was able to make
United Airlines
7.4
Good
8,856 reviews
Porter Airlines
8.0
Very good
306 reviews

Food

7.7

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.7

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Shawn,Jul 2025

EWR - YTZ

First time flying with porter and had an amazing experience. Will definitely use you guys whenever I get the chance. For context I had a flight from EWR to YTZ at 12:00pm. When I arrived early at 09:30 they put me on standby for the 10:00am, which I was able to make

Related info for your journey

Find useful and relevant information for your journey from Toronto to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Toronto to Washington, D.C. Dulles Intl Airport round-trip?

    Currently priced at $166, Porter Airlines will fly you from Toronto to Washington, D.C. Dulles Intl Airport and back. In addition to Porter Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Air Transat - these airlines can fly you to your destination from $178 and $183, respectively. Porter Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Toronto to Washington, D.C. Dulles Intl Airport one-way?

    For one-way options, check prices for Air Transat. According to our data, you can fly for as low as $116. Users have also found prices from $116 and $117 on Air Canada and Porter Airlines, respectively.

  • What are the most reliable airlines from Toronto to Washington, D.C. Dulles Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Toronto to Washington, D.C. Dulles Intl Airport consider choosing ANA (94%), Republic Airways (82%) or Avianca (81%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Toronto to Washington, D.C. Dulles Intl Airport is generally $371, our data shows the cheapest flight currently is $124. When looking at the most popular route, (Toronto Pearson Intl - Washington, D.C. Dulles Intl), you can expect to pay $164 for that flight.

  • Can I find deals for flights from Toronto to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Toronto to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Toronto to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Toronto to Dulles Intl.

  • Can I find deals for business class flights from Toronto to Dulles Intl?

    Yes. Cheapflights offers flight deals from Toronto to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Toronto to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Toronto to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Easton
Fairfax
Towson
Linthicum Heights
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
Springfield
National Harbor
Manassas
Dundalk

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Top 3 airlines flying from Toronto to Dulles Intl

Discover the top 3 airlines that operate flights from Toronto to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$171Average$288FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$174Average$284FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$184Average$278FlexibilityNo cancel feeOn-time69%

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