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Cheap flights from Washington, D.C. Dulles Intl Airport to Toronto from C$ 144

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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YTO
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Toronto are usually found in June or February, booked 54 days in advance, depart on a Monday or Wednesday and return on a Friday

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 29 October 2025.

Round-trip from

C$ 292

One-way from

C$ 144

Popular in

October

Cheapest in

June

Average price

C$ 483

Good round-trip deal

C$ 178 or less

Good one-way deal

C$ 152 or less
Porter Airlines
  • Porter Airlines
  • 4/12-7/12
  • Nonstop
  • 2h 59m total
  • Washington, D.C. to Toronto
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Porter Airlines
  • Porter Airlines
  • 18/2
  • Nonstop
  • 1h 30m total
  • Washington, D.C. to Toronto
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
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Average for round-trip flights in October 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

Enter your travel dates to find the best prices.

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 29 October 2025.

Thu 4/1211:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Sun 7/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 28/10C$ 292
Thu 20/1111:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Sun 23/118:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 27/10C$ 293
Wed 19/116:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Sat 22/1111:00 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 29/10C$ 295
Tue 2/126:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Fri 12/123:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 27/10C$ 296
Wed 19/116:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Fri 28/113:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 27/10C$ 298
Mon 17/116:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Fri 21/118:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 27/10C$ 299
Thu 27/1111:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Mon 8/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 27/10C$ 300
Tue 2/126:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Thu 4/123:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 27/10C$ 305
Thu 20/119:45 a.m.IAD - YTZ
1 stop5h 10mAir Canada
Sun 23/113:30 p.m.YTZ - IAD
1 stop5h 24mAir Canada
Deal found 28/10C$ 306
Thu 20/119:45 a.m.IAD - YYZ
1 stop5h 49mAir Canada
Sun 23/119:00 a.m.YYZ - IAD
1 stop7h 21mAir Canada
Deal found 28/10C$ 326
Sat 29/119:45 a.m.IAD - YYZ
1 stop4h 55mAir Canada
Sat 6/126:55 p.m.YYZ - IAD
Nonstop1h 31mAir Canada
Deal found 27/10C$ 333
Thu 27/114:30 p.m.IAD - YYZ
Nonstop1h 33mAir Canada
Sat 29/117:10 a.m.YYZ - IAD
1 stop4h 29mAir Canada
Deal found 28/10C$ 345

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 629,999 searches. Data last updated 29 October 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

Fri 21/11

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

Fri 28/11

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 293

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 3/12

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

Fri 5/12

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 298

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 22/1

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Sun 25/1

8:55 a.m.-10:24 a.m.

Nonstop1h 29m

C$ 299

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 20/11

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Sun 23/11

8:55 a.m.-10:24 a.m.

Nonstop1h 29m

C$ 303

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 27/11

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Wed 3/12

8:55 a.m.-10:24 a.m.

Nonstop1h 29m

C$ 305

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Fri 5/12

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

Tue 9/12

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 314

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 6/12

1:45 p.m.-3:15 p.m.

Nonstop1h 30m

Toronto Island

Tue 9/12

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 314

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 15/1

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Mon 19/1

8:55 a.m.-10:24 a.m.

Nonstop1h 29m

C$ 328

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 15/11

1:45 p.m.-3:15 p.m.

Nonstop1h 30m

Toronto Island

Wed 19/11

8:55 a.m.-10:24 a.m.

Nonstop1h 29m

C$ 342

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 10/11

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

Wed 12/11

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 344

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Showing 1-10 of 48 results
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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 24 October 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Toronto is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 127). Flying from Washington, D.C. Dulles Intl Airport to Toronto in August is currently the most expensive (average of C$ 239). 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 29 October 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Toronto in the afternoon. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the morning.

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 16 December 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Toronto flight should consider departing on Sunday evenings 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.

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

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 29 October 2025.
Read reviews from past customers who have flown Porter Airlines and Air Canada from Washington, D.C. Dulles Intl Airport to Toronto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.6

Comfort

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.6

Comfort

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,371 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.6

Comfort

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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.

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

    For as low as C$ 293, Porter Airlines can have you in Toronto from Washington, D.C. Dulles Intl Airport in 1h 30m. The distance between Washington, D.C. Dulles Intl Airport and Toronto is about 546 km. Most flights are nonstop.

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

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Toronto round-trip from C$ 179. Other airlines that can offer you cheap pricing are United Airlines, from C$ 184, and Porter Airlines, from C$ 246. These flights start at 55% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 144. United Airlines flights start at C$ 150 while deals on Air Canada start at C$ 150 one-way.

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

    Most travellers choose Washington, D.C. Dulles Intl - Toronto Pearson Intl, Washington, D.C. Dulles Intl - Toronto Island or Washington, D.C. Dulles Intl - Hamilton when deciding on the best route from Washington, D.C. Dulles Intl Airport to Toronto.

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Toronto consider choosing Republic Airways (93%), United Airlines (93%) or Air Canada (92%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Washington, D.C. Dulles Intl Airport to Toronto is generally C$ 307, our data shows the cheapest flight currently is C$ 151. When looking at the most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), you can expect to pay C$ 337 for that flight.

  • 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, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 127). Flying from Washington, D.C. Dulles Intl Airport to Toronto in August is currently the most expensive (average of C$ 239). 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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Top 3 airlines flying from Dulles Intl to Toronto

Discover the top 3 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 629,999 searches. Data last updated 29 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 179AverageC$ 446FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 184AverageC$ 491FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 246AverageC$ 453FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

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How does Cheapflights help users find flights from Dulles Intl to Toronto?

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Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Toronto?

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Can Cheapflights find flights from Dulles Intl to Toronto with no change fees?

Certainly. Search results for flights to Toronto from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl to Toronto become cheaper?

Of course! You can now track prices for flights from Dulles Intl to Toronto and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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