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Cheap flights from Toronto to Washington, D.C. Dulles Intl Airport from C$ 170

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — IAD
25 Feb — 4 Mar1
1 adult

The best prices from Toronto to Washington, D.C. Dulles Intl are usually found in January or April, booked 47 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Toronto to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to Dulles Intl (IAD). 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 20 February 2025.

Round-trip from

C$ 264

One-way from

C$ 170

Popular in

October

Cheapest in

January

Average price

C$ 381

Good round-trip deal

C$ 267 or less

Good one-way deal

C$ 176 or less
Porter Airlines
  • Porter Airlines
  • 23/3-25/3
  • Nonstop
  • 2h 59m total
  • Toronto to Washington, D.C.
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Air Canada
  • Air Canada
  • 12/3
  • 1 total stop
  • 6h 48m total
  • Toronto to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 53 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Toronto (YTO) to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Toronto (YTO) to Washington, D.C. Dulles Intl.
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Find flight deals from Toronto to Dulles Intl

Cheapest flights from Toronto to Dulles Intl
Explore the most affordable flight options available from Toronto to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2025.

Sun 23/38:55 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Tue 25/31:45 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 19/2C$ 264
Wed 19/38:55 p.m.YTZ - IAD
Nonstop1h 29mAir Transat
Wed 26/37:00 a.m.IAD - YTZ
Nonstop1h 30mAir Transat
Deal found 19/2C$ 273
Wed 26/310:20 a.m.YTZ - IAD
1 stop5h 38mAir Canada
Tue 1/43:55 p.m.IAD - YTZ
1 stop5h 40mAir Canada
Deal found 19/2C$ 274
Tue 1/46:15 a.m.YYZ - IAD
Nonstop1h 40mAir Canada
Tue 8/410:19 p.m.IAD - YYZ
Nonstop1h 35mAir Canada
Deal found 18/2C$ 274
Tue 1/47:00 a.m.YYZ - IAD
1 stop8h 47mMultiple Airlines
Tue 8/44:32 p.m.IAD - YYZ
1 stop7h 29mMultiple Airlines
Deal found 19/2C$ 298
Fri 14/312:25 p.m.YYZ - IAD
Nonstop1h 36mUnited Airlines
Thu 20/310:35 a.m.IAD - YYZ
Nonstop1h 31mUnited Airlines
Deal found 19/2C$ 307
Thu 3/411:30 a.m.YTZ - IAD
Nonstop1h 29mMultiple Airlines
Sun 6/44:07 p.m.IAD - YTZ
1 stop5h 28mMultiple Airlines
Deal found 19/2C$ 328
Thu 20/36:00 a.m.YYZ - IAD
1 stop7h 10mDelta
Thu 27/36:00 a.m.IAD - YYZ
1 stop5h 55mDelta
Deal found 19/2C$ 337
Thu 27/21:20 p.m.YYZ - IAD
1 stop9h 53mWestJet
Sun 2/36:05 a.m.IAD - YYZ
1 stop7h 39mWestJet
Deal found 19/2C$ 358
Fri 7/38:55 p.m.YTZ - IAD
Nonstop1h 29mAPG Airlines
Mon 10/37:00 a.m.IAD - YTZ
Nonstop1h 30mAPG Airlines
Deal found 19/2C$ 389
Thu 13/310:00 a.m.YYZ - IAD
Nonstop1h 39mLufthansa
Mon 17/32:45 p.m.IAD - YYZ
Nonstop1h 31mLufthansa
Deal found 19/2C$ 401

Find flights from Toronto to Dulles Intl within your budget

Customize your flight search to find flights from Toronto to Dulles Intl 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 20 February 2025.

Fly from

Toronto

Fly to

Dulles Intl

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sun 23/3

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Tue 25/3

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

Nonstop1h 30m

C$ 264

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 19/3

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 26/3

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

Nonstop1h 30m

C$ 273

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 26/3

10:20 a.m.-3:58 p.m.

1 stop5h 38m

Washington, D.C. Dulles Intl

Tue 1/4

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

1 stop5h 40m

C$ 274

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 1/4

6:15 a.m.-7:55 a.m.

Nonstop1h 40m

Washington, D.C. Dulles Intl

Tue 8/4

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

Nonstop1h 35m

C$ 274

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 1/4

7:00 a.m.-3:47 p.m.

1 stop8h 47m

Washington, D.C. Dulles Intl

Tue 8/4

4:32 p.m.-12:01 a.m.

1 stop7h 29m

C$ 298

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 14/3

12:25 p.m.-2:01 p.m.

Nonstop1h 36m

Washington, D.C. Dulles Intl

Thu 20/3

10:35 a.m.-12:06 p.m.

Nonstop1h 31m

C$ 307

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 3/4

11:30 a.m.-12:59 p.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 6/4

4:07 p.m.-9:35 p.m.

1 stop5h 28m

C$ 328

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 20/3

6:00 a.m.-1:10 p.m.

1 stop7h 10m

Washington, D.C. Dulles Intl

Thu 27/3

6:00 a.m.-11:55 a.m.

1 stop5h 55m

C$ 337

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 1/4

6:00 a.m.-11:33 a.m.

1 stop5h 33m

Washington, D.C. Dulles Intl

Tue 8/4

6:00 a.m.-11:49 a.m.

1 stop5h 49m

C$ 364

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 7/3

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Mon 10/3

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

Nonstop1h 30m

C$ 389

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 22 results
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Best time to book a flight from Toronto to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Toronto 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 from Toronto to Dulles Intl

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

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

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 14 February 2025.

To ensure you get the cheapest price possible for a flight from Toronto to Washington, D.C. Dulles Intl Airport, 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.

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

Currently, February is the cheapest month in which you can book a flight from Toronto to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from Toronto to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). 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 YTO to IAD?

Find hourly flight availability from Toronto to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 February 2025.

A simple way to save on the total cost of your ticket is to fly from Toronto to Washington, D.C. Dulles Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Toronto to Washington, D.C. Dulles Intl Airport?

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.

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

Weekly flight availability from Toronto to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Toronto to Dulles Intl. 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 20 February 2025.

The most flights from YTO to IAD are scheduled on a Wednesday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (15 on average).

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 Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport, 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 20 February 2025.
To help decide which airline to fly from Toronto to Washington, D.C., see what other customers have to say about Delta, Porter Airlines and Air Transat. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,227 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,227 reviews
Delta
8.0
Very good
8,227 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
8,227 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Transat
7.8
Good
380 reviews
Delta
8.0
Very good
8,227 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,768 reviews
Delta
8.0
Very good
8,227 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,227 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Toronto to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Porter Airlines, at C$ 264, was found to be the cheapest airline from Toronto to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Air Transat and Air Canada. Porter Airlines is 32% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from Toronto to Washington, D.C. Dulles Intl Airport are Air Canada (C$ 170), Porter Airlines (C$ 172), and Air Transat (C$ 173).

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

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Toronto, check out the most reliable airlines to get you to your destination on time: ANA (88%), Republic Airways (83%), Copa Airlines( 78%).

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

    On average you can expect to pay C$ 1,276 for a flight from Toronto to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is C$ 201 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Dulles Intl) is currently priced at C$ 277.

  • Can I find deals for flights from Toronto to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Toronto to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Toronto to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Toronto to Dulles Intl.

  • Can I find deals for business class flights from Toronto to Dulles Intl?

    Yes. Cheapflights offers flight deals from Toronto to Dulles Intl 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 Toronto to Washington, D.C. Dulles Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Toronto to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from Toronto to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). 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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Fly from Toronto to Dulles Intl on these airlines

Choose from the following airlines for your flight from Toronto to Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on 20 February 2025.
Porter Airlines flights from Toronto to Washington, D.C. Dulles Intl
Air Canada flights from Toronto to Washington, D.C. Dulles Intl
United Airlines flights from Toronto to Washington, D.C. Dulles Intl

Top 5 airlines flying from Toronto to Dulles Intl

Discover the top 5 airlines that operate flights from Toronto to Dulles Intl. 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 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 233AverageC$ 336FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 286AverageC$ 570FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 309AverageC$ 405FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 327AverageC$ 459FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 491AverageC$ 593FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dulles Intl from Toronto.

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

Yes, we can. To see specific flights from Toronto to Dulles Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Of course! You can now track prices for flights from Toronto 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 above to set up your price alerts.

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