Cheap flights from Toronto to Washington, D.C. Dulles Intl Airport from C$ 180

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 24/11. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — IAD
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Toronto to Washington, D.C. Dulles Intl are usually found in July or June, booked 35 days in advance, depart on a Friday or Thursday and return on a Monday

Find flight deals from Toronto to Dulles Intl

Enter your travel dates to find the best prices.

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 5 November 2025.

Thu 27/113:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Tue 2/126:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 4/11C$ 266
Thu 4/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Sun 7/1211:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 4/11C$ 267
Thu 18/123:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Thu 25/122:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 4/11C$ 269
Wed 3/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Sat 6/121:45 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 5/11C$ 273
Fri 5/123:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Mon 8/1211:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 4/11C$ 275
Wed 17/123:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Thu 25/122:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 3/11C$ 277
Wed 19/113:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Sun 23/1111:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 2/11C$ 284
Sat 13/126:55 p.m.YYZ - IAD
Nonstop1h 31mAir Canada
Sun 14/129:00 a.m.IAD - YYZ
Nonstop1h 29mAir Canada
Deal found 4/11C$ 286
Sun 23/118:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Tue 25/116:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 2/11C$ 287
Mon 24/113:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Mon 12/111:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 3/11C$ 289
Fri 21/113:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Sun 23/1111:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 2/11C$ 291
Thu 18/126:55 p.m.YYZ - IAD
Nonstop1h 31mAir Canada
Thu 25/129:00 a.m.IAD - YYZ
Nonstop1h 29mAir Canada
Deal found 4/11C$ 296

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 5 November 2025.

Round-trip from

C$ 266

One-way from

C$ 180

Popular in

October

Cheapest in

July

Average price

C$ 465

Good round-trip deal

C$ 273 or less

Good one-way deal

C$ 168 or less
Porter Airlines
  • Porter Airlines
  • 27/11-2/12
  • Nonstop
  • 2h 59m total
  • Toronto to Washington, D.C.
Porter Airlines
  • Porter Airlines
  • 24/11
  • Nonstop
  • 1h 29m total
  • Toronto to Washington, D.C.
Highest demand for flights based on searches. 21% potential increase in price (C$ 140 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease (C$ 33 potential savings vs. average RT price).
Average for round-trip flights in November 2025
Price to beat on a round-trip flight from Toronto (YTO) to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Toronto (YTO) to Washington, D.C. Dulles Intl.

Cheapflights Fare Finder

 
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 5 November 2025.
Use the filters below to find and compare flights from Toronto to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Toronto

Fly to

Dulles Intl

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 3/12

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 7/12

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

Nonstop1h 30m

C$ 266

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 28/11

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 7/12

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

Nonstop1h 30m

C$ 266

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 4/12

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 7/12

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

Nonstop1h 30m

C$ 267

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 3/12

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 10/12

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

C$ 269

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 18/12

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Thu 25/12

2:30 p.m.-4:00 p.m.

Nonstop1h 30m

C$ 270

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 5/12

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Mon 8/12

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

Nonstop1h 30m

C$ 273

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 24/11

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Thu 27/11

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

Nonstop1h 30m

C$ 275

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 21/11

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Tue 25/11

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

C$ 297

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 27/11

2:15 p.m.-3:46 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 2/12

4:30 p.m.-6:03 p.m.

Nonstop1h 33m

C$ 307

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 21/11

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

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sat 22/11

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

Nonstop1h 30m

C$ 318

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 38 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.

Cheapflights Insights

Everything you need to know about your flight from Toronto to Washington, D.C. Dulles Intl Airport

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 31 October 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 35 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$ 186). Flying from Toronto to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of C$ 263). 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 5 November 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 morning. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight in the afternoon.

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 Wednesday at noon when fares are most often at their lowest. Monday afternoons 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 5 November 2025.

The most flights from YTO to IAD are scheduled on a Monday (19 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 Toronto to Washington, D.C. Dulles Intl Airport?

What’s the top layover airport for flights from Toronto to Washington, D.C. Dulles Intl Airport?

Share of one-stop round-trip flights from Toronto to Washington, D.C. Dulles Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Detroit (DTW) – chosen by Cheapflights users on 62% of one-stop itineraries from Toronto to Washington, D.C. Dulles Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Toronto to Washington, D.C. Dulles Intl Airport?

Average round-trip fare for 1-stop flights from Toronto to Washington, D.C. Dulles Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Montreal (YUL) is the most affordable 1-stop option, with an average round-trip price of C$ 366.

What’s the fastest layover option from Toronto to Washington, D.C. Dulles Intl Airport?

Shortest average travel time for 1-stop one-way flights from Toronto to Washington, D.C. Dulles Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 4h 47m.

Which airport typically offers the quickest layover for flights from Toronto to Washington, D.C. Dulles Intl Airport?

Average layover duration for 1-stop one-way flights from Toronto to Washington, D.C. Dulles Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Montreal (YUL) offer the fastest connection on this route, with an average layover time of 1h 52m.

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 5 November 2025.
See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Toronto to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Entertainment

7.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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.
  • How long is the flight from Toronto to Washington, D.C. Dulles Intl Airport?

    Airlines like Porter Airlines, Air Canada, and Delta fly from Toronto to Washington, D.C. Dulles Intl Airport in about 1h 29m. The time it takes to get you to your destination can typically vary by up to 4h 14m. The distance from Toronto to Washington, D.C. Dulles Intl Airport is about 546 km. This flight may include one or multiple stops.

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

    Air Transat, at C$ 214, was found to be the cheapest airline from Toronto to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Porter Airlines and Air Canada. Air Transat is 40% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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: Avianca (94%), Republic Airways (93%), Copa Airlines( 92%).

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

    On average you can expect to pay C$ 1,424 for a flight from Toronto to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is C$ 206 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Dulles Intl) is currently priced at C$ 324.

  • 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$ 186). Flying from Toronto to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of C$ 263). 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

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
Warrenton
Hanover
Fairfax
Reston
Ellicott City
Oxon Hill
Gaithersburg
Herndon
Arlington
Winchester
Manassas
Fredericksburg
Alexandria
Rockville

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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 5 November 2025.

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 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 214AverageC$ 358FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 216AverageC$ 302FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 264AverageC$ 409FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 266AverageC$ 424FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 420AverageC$ 619FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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

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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.

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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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