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C$ 174+ Cheap flights to Dulles Intl

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
19 Mar — 26 Mar1
1 adult

Flights to Dulles Intl in 2025

Find the latest flights to Dulles Intl in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 14 March 2025.

Round-trip from

C$ 258

One-way from

C$ 174

Popular in

August

Cheapest in

April

Average price

C$ 376

Good round-trip deal

C$ 260 or less

Good one-way deal

C$ 181 or less
Porter Airlines
  • Porter Airlines
  • 9/4-16/4
  • Nonstop
  • 2h 59m total
  • Toronto to Washington, D.C.
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Air Canada
  • Air Canada
  • 1/4
  • Nonstop
  • 1h 31m total
  • Toronto to Washington, D.C.
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Highest demand for flights based on searches. 0% potential increase in price.
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Cheapest flight prices on average. 0% potential price decrease (C$ 5 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Toronto to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Toronto to Washington, D.C. Dulles Intl.
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Find flight deals to Dulles Intl Airport

Cheapest flights to Dulles Intl Airport
Explore the most affordable flight options available to Dulles Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 14 March 2025.

Sat 19/46:00 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Sun 20/47:00 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 13/3C$ 258
Tue 8/48:15 a.m.YYZ - IAD
Nonstop1h 31mAir Canada
Sat 19/42:40 p.m.IAD - YYZ
Nonstop1h 34mAir Canada
Deal found 13/3C$ 262
Sat 19/44:20 p.m.YTZ - IAD
1 stop4h 55mMultiple Airlines
Mon 21/47:00 a.m.IAD - YTZ
Nonstop1h 30mMultiple Airlines
Deal found 14/3C$ 272
Tue 6/54:40 p.m.YYZ - IAD
1 stop4h 32mUnited Airlines
Wed 7/58:25 a.m.IAD - YYZ
Nonstop1h 39mUnited Airlines
Deal found 13/3C$ 274
Thu 10/410:25 a.m.YTZ - IAD
1 stop4h 48mAir Canada
Thu 17/43:55 p.m.IAD - YTZ
1 stop5h 40mAir Canada
Deal found 13/3C$ 278
Wed 9/48:55 p.m.YTZ - IAD
Nonstop1h 29mAir Transat
Wed 16/41:45 p.m.IAD - YTZ
Nonstop1h 30mAir Transat
Deal found 13/3C$ 291
Thu 3/410:05 a.m.YYZ - IAD
Nonstop1h 34mMultiple Airlines
Tue 8/43:55 p.m.IAD - YYZ
1 stop5h 44mMultiple Airlines
Deal found 13/3C$ 298
Thu 10/46:00 a.m.YYZ - IAD
1 stop7h 22mDelta
Thu 17/49:20 a.m.IAD - YYZ
1 stop7h 58mDelta
Deal found 13/3C$ 333
Fri 11/46:49 p.m.YYZ - IAD
1 stop16h 42mWestJet
Fri 18/46:00 a.m.IAD - YYZ
2 stops17h 30mWestJet
Deal found 13/3C$ 373

Find flights to Dulles Intl within your budget

Locate flights to Dulles Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 14 March 2025.

Fly from

Toronto

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 19/4

6:00 p.m.-7:29 p.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 20/4

7:00 a.m.-8:30 a.m.

Nonstop1h 30m

C$ 258

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 15/4

10:05 a.m.-11:39 a.m.

Nonstop1h 34m

Washington, D.C. Dulles Intl

Sat 19/4

10:35 a.m.-12:09 p.m.

Nonstop1h 34m

C$ 262

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 19/4

4:20 p.m.-9:15 p.m.

1 stop4h 55m

Washington, D.C. Dulles Intl

Mon 21/4

7:00 a.m.-8:30 a.m.

Nonstop1h 30m

C$ 272

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 6/5

4:40 p.m.-9:12 p.m.

1 stop4h 32m

Washington, D.C. Dulles Intl

Wed 7/5

8:25 a.m.-10:04 a.m.

Nonstop1h 39m

C$ 274

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 10/4

10:25 a.m.-3:13 p.m.

1 stop4h 48m

Washington, D.C. Dulles Intl

Thu 17/4

3:55 p.m.-9:35 p.m.

1 stop5h 40m

C$ 278

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 9/4

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 16/4

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

Nonstop1h 30m

C$ 291

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 15/4

6:00 a.m.-11:31 a.m.

1 stop5h 31m

Washington, D.C. Dulles Intl

Sat 19/4

6:00 a.m.-11:25 a.m.

1 stop5h 25m

C$ 311

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 11/4

12:20 p.m.-4:28 p.m.

1 stop4h 08m

Washington, D.C. Dulles Intl

Fri 18/4

3:55 p.m.-9:39 p.m.

1 stop5h 44m

C$ 315

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 1/4

12:25 p.m.-1:56 p.m.

Nonstop1h 31m

C$ 174

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 11/4

8:25 a.m.-3:13 p.m.

1 stop6h 48m

C$ 177

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 19 results
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Best time to book a flight to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to 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.

Travel insights for flights to Dulles Intl

Get recent, data-driven insights about flights to Dulles Intl including ideal travel times, pricing trends, and more.

When is the best time to book a flight to Dulles Intl?

Use this chart to determine the optimal time to book a round-trip flight from Toronto to Dulles Intl. Price data was last updated on 7 March 2025.

To ensure you get the cheapest price possible for a flight to Dulles Intl, you should look to book at least 47 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to Dulles Intl?

On average, a flight from Toronto to Dulles Intl takes 1 hour 28 minutes. Flights to Dulles Intl from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Dulles Intl?

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

Users looking for the lowest fares to Dulles Intl should consider flying on Tuesday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, when prices are usually at their highest.

Weekly flight availability to Dulles Intl

The most flights from Toronto to Dulles Intl are scheduled on a Thursday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

What are the most popular airlines that fly to Dulles Intl?

The most popular airlines flying from Toronto to Dulles Intl are Air Canada, Porter Airlines and United Airlines.

Air Canada

Air Canada

From C$ 189

Porter Airlines

Porter Airlines

From C$ 164

United Airlines

United Airlines

From C$ 240

WestJet

WestJet

From C$ 337

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from Toronto to Dulles Intl are Porter Airlines, Air Canada and Air Transat.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dulles Intl ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Dulles Intl when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dulles Intl, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 14 March 2025.
See what other customers who have flown with Porter Airlines, Delta and Air Transat to Washington, D.C. have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
278 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.0

Food

7.6

Crew

8.8

Comfort

8.1

Reviews

1 / 17

10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

Porter Airlines
8.0
Very good
278 reviews
Porter Airlines
8.0
Very good
278 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.0

Food

7.6

Crew

8.8

Comfort

8.1

Reviews

1 / 17

10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

Delta
8.0
Very good
7,944 reviews
Porter Airlines
8.0
Very good
278 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.0

Food

7.6

Crew

8.8

Comfort

8.1

Reviews

1 / 17

10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

Air Transat
7.8
Good
379 reviews
Porter Airlines
8.0
Very good
278 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.0

Food

7.6

Crew

8.8

Comfort

8.1

Reviews

1 / 17

10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

United Airlines
7.4
Good
8,623 reviews
Porter Airlines
8.0
Very good
278 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.0

Food

7.6

Crew

8.8

Comfort

8.1

Reviews

1 / 17

10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
278 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.0

Food

7.6

Crew

8.8

Comfort

8.1

Reviews

1 / 17

10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

FAQs about flying to Dulles Intl

Washington Dulles International Airport (IAD) handles close to 24 million passengers each year. This architecturally beautiful airport is situated 26 miles (42km) from downtown Washington DC and serves a metropolitan area that includes Washington, Baltimore and Northern Virginia.

Washington Dulles International Airport was named after John Foster Dulles who was a former US Secretary of State. The airport is well-connected to Washington and Virginia, and is also connected to more than 125 destinations around the world, making it a popular gateway to the eastern United States.

The airport has a range of shopping options including book shops, fashion, jewellery, gifts, gadgets and music. The duty-free shops at the Washington Dulles International Airport are well-stocked and the amenities are top-class.

The airport serves as a hub for United Airlines, however passengers can book flights to Washington Dulles International Airport on most major international and domestic airlines.

  • Can I find cheaper flights to Dulles Intl if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Dulles Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Dulles Intl?

    Based on reviews from Cheapflights users, Porter Airlines is rated the highest out of the airlines that fly to Dulles Intl.

  • What is the cheapest airport to fly to in Dulles Intl?

    Washington, D.C. Dulles Intl is currently the cheapest airport to fly to in Dulles Intl. One-way flights to Washington, D.C. Dulles Intl typically cost C$ 89, while round-trip flights cost around C$ 82.

  • How much is a round-trip flight to Dulles Intl?

    A round-trip flight to Dulles Intl will typically cost around C$ 71, however they can be found for as little as C$ 57.

  • Where does the fastest flight to Dulles Intl depart from?

    For those looking to save time traveling to Dulles Intl, Toronto offers the quickest one-way flight (1 hour 27 minutes).

  • Does Washington, D.C. Dulles Intl have rental cars?

    Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to Washington, D.C. Dulles Intl?

    Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 km away from Washington, D.C. Dulles Intl).

See more FAQs

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Herndon
Warrenton
Arlington
Hanover
Fairfax
Bel Air
Chantilly
Winchester
Falls Church
Manassas
Fredericksburg
Alexandria
Rockville

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

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Of course! You can track prices for flights to Dulles Intl 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 to set up your price alerts.

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