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$78+ Cheap flights from Dulles Intl (IAD) to Toronto (YTO)

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YTO
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Toronto are usually found in June or February, booked 83 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Dulles Intl to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Toronto (YTO). 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 July 29, 2025.

Round-trip from

$194
(Kiwi.com)

One-way from

$78
(eDestinos)

Popular in

November

Cheapest in

June

Average price

$280

Good round-trip deal

$217 or less

Good one-way deal

$85 or less
From Washington, D.C. Dulles Intl to Toronto (YTO)
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One-way flight from Washington, D.C. Dulles Intl to Toronto (YTO)
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Highest demand for flights based on searches. 7% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 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 Washington, D.C. Dulles Intl to Toronto (YTO).
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Toronto (YTO).
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Find flight deals from Dulles Intl to Toronto

Cheapest flights from Dulles Intl to Toronto
Explore the most affordable flight options available from Dulles Intl to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Sat 8/304:10 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Sun 8/319:05 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 7/26$194
This Flightnetwork deal was found by Cheapflights users on 7/28. 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.
Tue 8/199:35 amIAD - YYZ
1 stop5h 00mAir Canada
Tue 8/264:30 pmYYZ - IAD
1 stop4h 31mAir Canada
Deal found 7/28$208
This Trip.com deal was found by Cheapflights users on 7/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:20 pmIAD - YTZ
Nonstop1h 33mMultiple Airlines
Mon 9/88:45 amYTZ - IAD
Nonstop1h 31mMultiple Airlines
Deal found 7/26$222
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/199:35 amIAD - YTZ
1 stop5h 11mAir Canada
Tue 8/263:25 pmYTZ - IAD
1 stop5h 36mAir Canada
Deal found 7/28$228
This Booking.com deal was found by Cheapflights users on 7/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:10 pmIAD - YTZ
Nonstop1h 33mAir Transat
Sun 8/311:25 pmYTZ - IAD
Nonstop1h 31mAir Transat
Deal found 7/27$241
This Trip.com deal was found by Cheapflights users on 7/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:20 amIAD - YYZ
1 stop5h 24mUnited Airlines
Thu 9/1812:45 pmYYZ - IAD
Nonstop1h 40mUnited Airlines
Deal found 7/27$247
This Delta deal was found by Cheapflights users on 7/27. 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.
Mon 8/185:11 pmIAD - YYZ
1 stop5h 47mDelta
Fri 8/296:13 pmYYZ - IAD
1 stop5h 13mDelta
Deal found 7/27$270
This United deal was found by Cheapflights users on 7/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/43:41 pmIAD - YYZ
Nonstop1h 38mMultiple Airlines
Sun 9/78:10 amYYZ - IAD
Nonstop1h 28mMultiple Airlines
Deal found 7/26$277
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:45 pmIAD - YHM
1 stop29h 55mWestJet
Mon 9/86:00 amYHM - IAD
1 stop11h 50mWestJet
Deal found 7/28$352
This Mytrip deal was found by Cheapflights users on 7/28. 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.
Fri 9/196:45 pmIAD - YHM
2 stops29h 03mMultiple Airlines
Sun 9/212:55 pmYHM - IAD
2 stops26h 55mMultiple Airlines
Deal found 7/28$716

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Toronto 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 July 29, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Toronto that are best for you.

Fly from

Dulles Intl

Fly to

Toronto

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 8/30

4:10 pm-5:43 pm

Nonstop1h 33m

Toronto Island

Sun 8/31

9:05 am-10:36 am

Nonstop1h 31m

$194

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 9/4

10:20 am-11:52 am

Nonstop1h 32m

Toronto Pearson Intl

Sun 9/7

8:10 am-9:38 am

Nonstop1h 28m

$203

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 9/3

4:20 pm-5:53 pm

Nonstop1h 33m

Toronto Island

Mon 9/8

8:45 am-10:16 am

Nonstop1h 31m

$222

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 8/30

4:10 pm-5:43 pm

Nonstop1h 33m

Toronto Island

Sun 8/31

1:25 pm-2:56 pm

Nonstop1h 31m

$241

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 9/11

6:20 am-11:44 am

1 stop5h 24m

Toronto Pearson Intl

Thu 9/18

12:45 pm-2:25 pm

Nonstop1h 40m

$247

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Mon 8/18

5:11 pm-10:58 pm

1 stop5h 47m

Toronto Pearson Intl

Wed 8/20

4:11 pm-10:55 pm

1 stop6h 44m

$270

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 9/4

8:40 am-1:47 pm

1 stop5h 07m

Toronto Pearson Intl

Sun 9/7

8:10 am-9:38 am

Nonstop1h 28m

$277

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Fri 9/5

6:45 pm-12:40 am

1 stop29h 55m

Hamilton

Mon 9/8

6:00 am-5:50 pm

1 stop11h 50m

$352

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

Fri 9/19

6:45 pm-11:48 pm

2 stops29h 03m

Hamilton

Sun 9/21

2:55 pm-5:50 pm

2 stops26h 55m

$716

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sun 10/26

8:18 pm-8:00 pm

1 stop23h 42m

$78

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 19 results
1
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The best insider tips for Washington, D.C. Dulles Intl Airport to Toronto 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 Washington, D.C. Dulles Intl Airport to Toronto trip
Airlines
Porter Airlines

PorterReserve offers expedited security and early boarding, ideal for quick short-haul travel.


Porter flights feature free Wi-Fi and snacks, enhancing short-haul travel comfort.

Read more about Porter Airlinesby Daniel Scheffler
Air Canada

Air Canada offers complimentary meals in Premium Economy, enhancing short-haul comfort.


Economy Latitude includes priority check-in and baggage handling, ideal for efficient travel.

Read more about Air Canadaby Jessica Macdonald
United Airlines

United Economy Plus offers extra legroom, enhancing comfort on short flights.


United offers priority check-in and two free checked bags in premium cabins.

Read more about United Airlinesby Harriet Baskas
Airports
IAD

Check-in at IAD can be crowded in the afternoon and evening, so arrive early to avoid long lines.

Read more about IADby Ramsey Qubein
YYZ

Expect a fair amount of walking from your gate to customs at YYZ, but the process is generally fast.

Read more about YYZby Kaitlyn McInnis
YTZ

Arriving at YTZ is quick; customs are fast with minimal lines, making it easy to reach baggage claim swiftly.

Read more about YTZby Kaitlyn McInnis
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Porter Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

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
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
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 Dulles Intl to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Toronto

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Toronto. Price data was last updated on July 25, 2025.

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Toronto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of $243). Flying from Washington, D.C. Dulles Intl Airport to Toronto in August is currently the most expensive (average of $348). 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 IAD to YTO?

Find hourly flight availability from Dulles Intl to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Toronto in the afternoon. Doing so could potentially save you 53% on the flight price compared to flying in the evening, which is usually more expensive.

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

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

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

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

Explore weekly flight availability from Dulles Intl to Toronto. 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 July 29, 2025.

The most flights from IAD to YTO are scheduled on a Friday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. 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 Toronto. Reviews last updated July 29, 2025.
See what other customers who have flown with Porter Airlines, Delta, and Air Transat from Washington, D.C. Dulles Intl Airport to Toronto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
317 reviews

Boarding

8.2

Crew

8.7

Entertainment

7.0

Overall

8.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
317 reviews
Porter Airlines
8.0
Very good
317 reviews

Boarding

8.2

Crew

8.7

Entertainment

7.0

Overall

8.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Delta
8.0
Very good
7,977 reviews
Porter Airlines
8.0
Very good
317 reviews

Boarding

8.2

Crew

8.7

Entertainment

7.0

Overall

8.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
424 reviews
Porter Airlines
8.0
Very good
317 reviews

Boarding

8.2

Crew

8.7

Entertainment

7.0

Overall

8.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,899 reviews
Porter Airlines
8.0
Very good
317 reviews

Boarding

8.2

Crew

8.7

Entertainment

7.0

Overall

8.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
2,973 reviews
Porter Airlines
8.0
Very good
317 reviews

Boarding

8.2

Crew

8.7

Entertainment

7.0

Overall

8.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Toronto. 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 Washington, D.C. Dulles Intl Airport to Toronto round-trip?

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Toronto is Porter Airlines. Our recent data shows that you can find tickets from as low as $194 on this airline. Additional options worth looking into are Air Canada and Air Transat, starting at $203 and $241 round-trip. Users have found that Porter Airlines is 31% cheaper than the other options available to this destination.

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

    $84 is the cheapest one-way deal found within the past few days, from Porter Airlines. You may also be able to find cheap deals on Air Canada and Air Transat, with prices starting from $84 and $100, respectively.

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

    The most popular route from Washington, D.C. Dulles Intl Airport to Toronto is Washington, D.C. Dulles Intl - Toronto Pearson Intl. You may also consider Washington, D.C. Dulles Intl - Toronto Island or Washington, D.C. Dulles Intl - Hamilton.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Toronto on time: ANA (89%), United Airlines (78%), Republic Airways (76%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Toronto is $106. On average you can expect to pay $2,596. The most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), can usually be booked for $245.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Toronto 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 Washington, D.C. Dulles Intl Airport to Toronto?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of $243). Flying from Washington, D.C. Dulles Intl Airport to Toronto in August is currently the most expensive (average of $348). 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

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Alternative routes for Dulles Intl to Toronto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Dulles Intl to Toronto

Discover the top 5 airlines that operate flights from Dulles Intl to Toronto. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$109Average$284FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$136Average$333FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$176Average$269FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$238Average$347FlexibilityNo cancel feeOn-time69%
WestJetCheapest$278Average$636FlexibilityNo cancel feeOn-time60%

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