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Cheap flights from Washington, D.C. Dulles Intl Airport to Toronto from C$ 132

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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YTO
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 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 11 September 2025.

Round-trip from

C$ 292

One-way from

C$ 132

Popular in

November

Cheapest in

June

Average price

C$ 335

Good round-trip deal

C$ 339 or less

Good one-way deal

C$ 149 or less
Porter Airlines
  • Porter Airlines
  • 2/10-5/10
  • Nonstop
  • 3h 04m total
  • Washington, D.C. to Toronto
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Air Canada
  • Air Canada
  • 8/11
  • 1 total stop
  • 7h 10m total
  • Washington, D.C. to Toronto
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 62 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Toronto (YTO).
Search Deals
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 11 September 2025.

Thu 2/1011:35 a.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Sun 5/108:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 10/9C$ 292
Wed 24/92:25 p.m.IAD - YYZ
Nonstop1h 32mAir Canada
Thu 25/98:10 a.m.YYZ - IAD
Nonstop1h 28mAir Canada
Deal found 9/9C$ 292
Thu 4/1211:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Tue 9/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 11/9C$ 294
Thu 30/1011:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Thu 6/118:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 11/9C$ 295
Thu 2/108:59 p.m.IAD - YYZ
1 stop24h 22mMultiple Airlines
Mon 6/107:45 a.m.YYZ - IAD
1 stop7h 54mMultiple Airlines
Deal found 9/9C$ 295
Sun 19/1011:35 a.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Fri 31/103:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 10/9C$ 297
Mon 6/1010:20 a.m.IAD - YYZ
Nonstop1h 32mAir Canada
Tue 7/104:30 p.m.YYZ - IAD
1 stop4h 35mAir Canada
Deal found 9/9C$ 297
Sun 12/104:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Thu 16/108:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 10/9C$ 298
Thu 30/109:52 p.m.IAD - YYZ
1 stop19h 20mMultiple Airlines
Sun 2/112:20 p.m.YYZ - IAD
1 stop7h 49mMultiple Airlines
Deal found 9/9C$ 298
Tue 23/94:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Fri 26/91:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 9/9C$ 299
Wed 29/106:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Sun 2/118:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 11/9C$ 301
Sat 1/114:25 p.m.IAD - YYZ
Nonstop1h 33mAir Canada
Tue 4/116:55 p.m.YYZ - IAD
Nonstop1h 31mAir Canada
Deal found 9/9C$ 301

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 11 September 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

Thu 16/10

4:20 p.m.-5:53 p.m.

Nonstop1h 33m

Toronto Island

Sun 19/10

8:45 a.m.-10:16 a.m.

Nonstop1h 31m

C$ 294

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 25/10

9:35 a.m.-2:45 p.m.

1 stop5h 10m

Toronto Island

Sat 1/11

3:30 p.m.-8:54 p.m.

1 stop5h 24m

C$ 294

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 4/12

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

Nonstop1h 30m

Toronto Island

Sun 7/12

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

Nonstop1h 29m

C$ 294

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Fri 31/10

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

Nonstop1h 30m

Toronto Island

Mon 3/11

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

Nonstop1h 29m

C$ 295

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 3/11

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

Nonstop1h 30m

Toronto Island

Wed 5/11

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

Nonstop1h 29m

C$ 295

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 30/10

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

Nonstop1h 30m

Toronto Island

Wed 5/11

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

Nonstop1h 29m

C$ 295

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sun 19/10

11:35 a.m.-1:08 p.m.

Nonstop1h 33m

Toronto Island

Wed 29/10

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

Nonstop1h 29m

C$ 297

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 15/10

4:20 p.m.-5:53 p.m.

Nonstop1h 33m

Toronto Island

Thu 16/10

8:45 a.m.-10:16 a.m.

Nonstop1h 31m

C$ 298

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 2/10

11:35 a.m.-1:08 p.m.

Nonstop1h 33m

Toronto Island

Sun 5/10

8:45 a.m.-10:16 a.m.

Nonstop1h 31m

C$ 305

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 2/10

11:35 a.m.-1:08 p.m.

Nonstop1h 33m

Toronto Island

Thu 9/10

8:45 a.m.-10:16 a.m.

Nonstop1h 31m

C$ 309

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 60 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 29 August 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Toronto is 83 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 168). Flying from Washington, D.C. Dulles Intl Airport to Toronto in July is currently the most expensive (average of C$ 258). 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 11 September 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 morning. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight at noon.

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 Tuesday evenings when fares are most often at their lowest. Sunday at noon 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 11 September 2025.

The most flights from IAD to YTO are scheduled on a Thursday (23 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).

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 11 September 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
7.9
Good
363 reviews
Check prices

Boarding

8.1

Crew

8.6

Entertainment

7.0

Overall

7.9

Comfort

7.9

Food

7.6

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
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Boarding

8.1

Crew

8.6

Entertainment

7.0

Overall

7.9

Comfort

7.9

Food

7.6

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
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Boarding

8.1

Crew

8.6

Entertainment

7.0

Overall

7.9

Comfort

7.9

Food

7.6

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$ 294, Porter Airlines can have you in Toronto from Washington, D.C. Dulles Intl Airport in 1h 33m. The distance between Washington, D.C. Dulles Intl Airport and Toronto is about 546 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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$ 183, and Porter Airlines, from C$ 244. These flights start at 54% 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 Air Canada, which is currently one of the cheapest options available, starting at C$ 134. Porter Airlines flights start at C$ 136 while deals on Delta start at C$ 143 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 ANA (89%), Air Canada (84%) or Copa Airlines (81%) 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$ 390, our data shows the cheapest flight currently is C$ 135. When looking at the most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), you can expect to pay C$ 309 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 168). Flying from Washington, D.C. Dulles Intl Airport to Toronto in July is currently the most expensive (average of C$ 258). 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 179AverageC$ 444FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 183AverageC$ 450FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 244AverageC$ 449FlexibilityNo 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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