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Cheap flights from Washington, D.C. Dulles Intl Airport to Toronto from C$ 135

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YTO
8 Sep — 15 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Toronto are usually found in May or January, booked 48 days in advance, depart on a Sunday or Monday and return on a Friday

Cheap 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 9 August 2026.

Sat 22/83:50 p.m. -
Nonstop1h 30m
Tue 25/89:15 a.m. -
Nonstop1h 30m
Deal found 6/8C$ 277
Sat 5/94:25 p.m. -
Nonstop1h 30m
Sun 6/99:50 a.m. -
Nonstop1h 30m
Deal found 7/8C$ 279
Thu 10/93:50 p.m. -
Nonstop1h 30m
Sun 13/99:15 a.m. -
Nonstop1h 30m
Deal found 5/8C$ 280
Sat 5/95:40 p.m. -
Nonstop1h 31m
Sun 6/93:45 p.m. -
Nonstop1h 23m
Deal found 5/8C$ 281
Sat 5/95:40 p.m. -
Nonstop1h 31m
Sat 12/93:15 p.m. -
Nonstop1h 23m
Deal found 5/8C$ 283
Fri 9/105:15 p.m. -
Nonstop1h 31m
Mon 12/103:15 p.m. -
Nonstop1h 23m
Deal found 7/8C$ 284
Sat 26/911:25 a.m. -
Nonstop1h 30m
Sat 3/109:15 a.m. -
Nonstop1h 30m
Deal found 5/8C$ 286
Fri 18/93:50 p.m. -
Nonstop1h 30m
Mon 21/91:40 p.m. -
Nonstop1h 30m
Deal found 4/8C$ 287
Tue 18/83:50 p.m. -
Nonstop1h 30m
Sat 22/81:40 p.m. -
Nonstop1h 30m
Deal found 4/8C$ 288
Sat 19/94:00 p.m. -
Nonstop1h 25m
Sat 26/96:55 p.m. -
Nonstop1h 30m
Deal found 5/8C$ 288
Mon 14/93:45 p.m. -
1 stop5h 45m
Thu 17/98:30 a.m. -
1 stop6h 30m
Deal found 7/8C$ 290
Sat 22/811:25 a.m. -
Nonstop1h 30m
Mon 31/81:40 p.m. -
Nonstop1h 30m
Deal found 7/8C$ 291

Find 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 9 August 2026.

Round-trip from

C$ 277

One-way from

C$ 135

Popular in

February

Cheapest in

May

Average price

C$ 399

Good round-trip deal

C$ 277 or less

Good one-way deal

C$ 136 or less
Porter Airlines
  • Porter Airlines
  • 22/8-25/8
  • Nonstop
  • 3h 00m total
  • Washington, D.C. to Toronto
Search Deals
Air Canada
  • Air Canada
  • 22/8
  • Nonstop
  • 1h 36m total
  • Washington, D.C. to Toronto
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
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).
Search Deals

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 9 August 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Thu 27/8

3:50 p.m.-5:20 p.m.

Nonstop1h 30m

Toronto Island

Mon 31/8

9:15 a.m.-10:45 a.m.

Nonstop1h 30m

C$ 287

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Sat 22/8

3:50 p.m.-5:20 p.m.

Nonstop1h 30m

Toronto Island

Wed 26/8

1:40 p.m.-3:10 p.m.

Nonstop1h 30m

C$ 329

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Wed 19/8

10:19 p.m.-11:54 p.m.

Nonstop1h 35m

Toronto Pearson Intl

Sat 29/8

9:44 a.m.-11:21 a.m.

Nonstop1h 37m

C$ 341

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Sun 11/10

6:05 a.m.-1:36 p.m.

1 stop7h 31m

Toronto Pearson Intl

Tue 13/10

2:26 p.m.-11:16 p.m.

1 stop8h 50m

C$ 376

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Tue 1/9

5:25 p.m.-11:03 p.m.

1 stop5h 38m

Toronto Pearson Intl

Tue 8/9

6:10 p.m.-11:14 p.m.

1 stop5h 04m

C$ 407

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Fri 25/9

10:18 p.m.-10:07 a.m.

1 stop11h 49m

Toronto Island

Sun 27/9

3:15 p.m.-4:38 p.m.

Nonstop1h 23m

C$ 418

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Thu 27/8

5:20 p.m.-6:56 p.m.

Nonstop1h 36m

Toronto Island

Mon 31/8

3:15 p.m.-4:41 p.m.

Nonstop1h 26m

C$ 432

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Thu 29/10

6:05 a.m.-1:36 p.m.

1 stop7h 31m

Toronto Pearson Intl

Thu 5/11

6:00 a.m.-11:50 a.m.

1 stop5h 50m

C$ 438

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Thu 17/9

6:13 a.m.-11:49 a.m.

1 stop5h 36m

Toronto Pearson Intl

Mon 21/9

6:55 p.m.-8:25 p.m.

Nonstop1h 30m

C$ 460

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Tue 20/10

6:10 a.m.-11:49 a.m.

1 stop5h 39m

Toronto Pearson Intl

Wed 21/10

9:44 a.m.-11:21 a.m.

Nonstop1h 37m

C$ 460

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 59 resultsSorted by cheapest first
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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

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 414). Flying from Washington, D.C. Dulles Intl Airport to Toronto in February is currently the most expensive (average of C$ 543). 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 9 August 2026.

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 15% on your trip compared to booking a flight at noon.

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 9 August 2026.

The most flights from IAD to YTO are scheduled on a Monday (25 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).

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

Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Toronto flights typically cost between C$ 326 and C$ 510 in August.
The cheapest round-trip price found within the last 5 days was C$ 277 on Porter Airlines (22 Aug-25 Aug).

How often are flights from Washington, D.C. to Toronto delayed?

About 15% of weekly flights between Washington, D.C. and Toronto have experienced delays in the past year, with the average delay time being 119 minutes.

What is the most punctual flight time for Washington, D.C. to Toronto flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Toronto flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 13% of flights being delayed.

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

The best time to book flights from Washington, D.C. Dulles Intl Airport to Toronto is 78 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 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 8 August 2026.

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

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 9 August 2026.
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
453 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

Food

7.5

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
453 reviews
Porter Airlines
8.0
Very good
453 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

Food

7.5

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,456 reviews
Porter Airlines
8.0
Very good
453 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

Food

7.5

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

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$ 287, 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. 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$ 177. Other airlines that can offer you cheap pricing are Porter Airlines, from C$ 284, and United Airlines, from C$ 300. These flights start at 58% 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 United Airlines, which is currently one of the cheapest options available, starting at C$ 123. Porter Airlines flights start at C$ 134 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 ANA (79%), United Airlines (76%) or Copa Airlines (71%) 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$ 421, our data shows the cheapest flight currently is C$ 136. When looking at the most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), you can expect to pay C$ 311 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 414). Flying from Washington, D.C. Dulles Intl Airport to Toronto in February is currently the most expensive (average of C$ 543). 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 9 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 177AverageC$ 655FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 284AverageC$ 409FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 300AverageC$ 513FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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?

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl to Toronto by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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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