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Cheap flights from Washington, D.C. Dulles Intl Airport to Toronto from C$ 148

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YTO
28 Aug — 4 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 29 July 2026.

Sun 20/911:25 a.m.
IAD
-
YTZ
Nonstop1h 30m
Multiple Airlines
Thu 24/91:40 p.m.
YTZ
-
IAD
Nonstop1h 30m
Multiple Airlines
Deal found 29/7C$ 310
Mon 24/811:25 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Fri 28/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 28/7C$ 311
Tue 8/99:45 a.m.
IAD
-
YTZ
1 stop4h 35m
Air Canada
Tue 15/912:30 p.m.
YTZ
-
IAD
1 stop6h 30m
Air Canada
Deal found 27/7C$ 313
Mon 24/811:25 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Tue 1/99:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 26/7C$ 315
Thu 20/811:25 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Mon 24/81:40 p.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 27/7C$ 317
Mon 24/811:25 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Thu 27/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 29/7C$ 318
Wed 12/89:45 a.m.
IAD
-
YTZ
1 stop4h 36m
Multiple Airlines
Sat 15/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Multiple Airlines
Deal found 29/7C$ 320
Sat 15/811:25 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Tue 18/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 28/7C$ 322
Tue 25/89:55 a.m.
IAD
-
YYZ
Nonstop1h 26m
Air Canada
Tue 25/82:00 p.m.
YYZ
-
IAD
1 stop5h 01m
Air Canada
Deal found 28/7C$ 322
Wed 12/83:50 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Fri 14/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 28/7C$ 324
Wed 9/94:00 p.m.
IAD
-
YYZ
Nonstop1h 25m
Air Canada
Wed 16/910:30 a.m.
YYZ
-
IAD
1 stop4h 30m
Air Canada
Deal found 26/7C$ 324
Fri 11/911:25 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sun 13/99:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 27/7C$ 325

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 29 July 2026.

Round-trip from

C$ 311

One-way from

C$ 148

Popular in

February

Cheapest in

May

Average price

C$ 407

Good round-trip deal

C$ 234 or less

Good one-way deal

C$ 188 or less
Porter Airlines
  • Porter Airlines
  • 24/8-25/8
  • Nonstop
  • 3h 00m total
  • Washington, D.C. to Toronto
Search Deals
Air Canada
  • Air Canada
  • 22/9
  • 1 total stop
  • 4h 35m total
  • Washington, D.C. to Toronto
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 84 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 July 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 29 July 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 - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 20/8

11:25 a.m.-12:55 p.m.

Nonstop1h 30m

Toronto Island

Sun 23/8

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

Nonstop1h 30m

C$ 327

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 20/8

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

Nonstop1h 30m

Toronto Island

Sun 23/8

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

Nonstop1h 30m

C$ 369

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 29/8

10:35 a.m.-8:44 p.m.

1 stop10h 09m

Toronto Pearson Intl

Mon 31/8

1:55 p.m.-3:24 p.m.

Nonstop1h 29m

C$ 404

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 23/9

8:20 a.m.-5:56 p.m.

1 stop9h 36m

Toronto Pearson Intl

Fri 25/9

1:55 p.m.-3:25 p.m.

Nonstop1h 30m

C$ 404

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 11/9

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

Nonstop1h 35m

Toronto Pearson Intl

Wed 16/9

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

Nonstop1h 30m

C$ 444

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 17/9

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

Nonstop1h 35m

Toronto Pearson Intl

Fri 18/9

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

Nonstop1h 30m

C$ 444

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 31/10

12:30 p.m.-5:38 p.m.

1 stop5h 08m

Toronto Pearson Intl

Mon 2/11

6:10 p.m.-11:16 p.m.

1 stop5h 06m

C$ 446

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 15/8

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

Nonstop1h 30m

Toronto Island

Tue 18/8

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

Nonstop1h 30m

C$ 479

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Mon 10/8

10:14 p.m.-11:54 p.m.

Nonstop1h 40m

Toronto Pearson Intl

Wed 12/8

12:45 p.m.-2:22 p.m.

Nonstop1h 37m

C$ 489

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Tue 3/11

11:20 a.m.-12:52 p.m.

Nonstop1h 32m

Toronto Island

Tue 10/11

9:10 a.m.-10:38 a.m.

Nonstop1h 28m

C$ 493

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 60 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$ 417). Flying from Washington, D.C. Dulles Intl Airport to Toronto in February is currently the most expensive (average of C$ 549). 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 July 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 20% 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 29 July 2026.

The most flights from IAD to YTO are scheduled on a Monday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 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$ 377 and C$ 559 in August.
The cheapest round-trip price found within the last 5 days was C$ 311 on Porter Airlines (24 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 122 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 25 July 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 29 July 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
449 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

6.9

Food

7.5

Boarding

8.2

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
449 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

6.9

Food

7.5

Boarding

8.2

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
11,407 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

6.9

Food

7.5

Boarding

8.2

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$ 327, 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$ 179. Other airlines that can offer you cheap pricing are Porter Airlines, from C$ 287, and United Airlines, from C$ 303. 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$ 125. Porter Airlines flights start at C$ 136 while deals on Air Canada start at C$ 153 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 United Airlines (80%), ANA (80%) or Copa Airlines (76%) 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$ 375, our data shows the cheapest flight currently is C$ 152. 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 417). Flying from Washington, D.C. Dulles Intl Airport to Toronto in February is currently the most expensive (average of C$ 549). 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 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 179AverageC$ 592FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 287AverageC$ 399FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 303AverageC$ 518FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dulles Intl to Toronto. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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