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Cheap flights from Toronto to Washington, D.C. Dulles Intl Airport from C$ 165

YTO — IAD
15 Oct — 22 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Toronto to Washington, D.C. Dulles Intl are usually found in August or December, booked 35 days in advance, depart on a Friday or Saturday and return on a Sunday

Cheap flight deals from Toronto to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Toronto to Dulles Intl

Fri 30/109:10 a.m. -
Nonstop1h 28m
Sat 7/1111:20 a.m. -
Nonstop1h 32m
Deal found 14/9C$ 249
Thu 29/109:10 a.m. -
Nonstop1h 28m
Sun 1/116:25 p.m. -
Nonstop1h 34m
Deal found 10/9C$ 250
Tue 27/102:15 p.m. -
Nonstop1h 30m
Tue 3/119:55 a.m. -
Nonstop1h 27m
Deal found 12/9C$ 250
Thu 15/109:15 a.m. -
Nonstop1h 30m
Sun 18/103:50 p.m. -
Nonstop1h 30m
Deal found 14/9C$ 251
Fri 30/109:10 a.m. -
Nonstop1h 28m
Sun 1/116:25 p.m. -
Nonstop1h 34m
Deal found 10/9C$ 253
Thu 29/106:40 p.m. -
Nonstop1h 30m
Sun 1/119:55 a.m. -
Nonstop1h 27m
Deal found 15/9C$ 254
Sat 3/109:15 a.m. -
Nonstop1h 30m
Mon 5/1011:25 a.m. -
Nonstop1h 30m
Deal found 12/9C$ 256
Fri 9/101:40 p.m. -
Nonstop1h 30m
Sun 11/1011:25 a.m. -
Nonstop1h 30m
Deal found 11/9C$ 257
Thu 15/101:40 p.m. -
Nonstop1h 30m
Wed 11/1111:20 a.m. -
Nonstop1h 32m
Deal found 14/9C$ 258
Thu 29/109:10 a.m. -
Nonstop1h 28m
Thu 5/1111:20 a.m. -
Nonstop1h 32m
Deal found 13/9C$ 260
Fri 30/102:00 p.m. -
1 stop6h 23m
Sat 7/119:55 a.m. -
Nonstop1h 27m
Deal found 14/9C$ 260
Fri 25/99:15 a.m. -
Nonstop1h 30m
Sun 27/911:25 a.m. -
Nonstop1h 30m
Deal found 10/9C$ 261

Find flight deals from Toronto to Dulles Intl

Round-trip from

C$ 249

One-way from

C$ 165

Popular in

May

Cheapest in

August

Average price

C$ 361

Good round-trip deal

C$ 288 or less

Good one-way deal

C$ 163 or less
Porter Airlines
  • Porter Airlines
  • 30/10-7/11
  • Nonstop
  • 3h 00m total
  • Toronto to Washington, D.C.
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Porter Airlines
  • Porter Airlines
  • 22/11-31/12
  • Nonstop
  • 1h 28m total
  • Toronto to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 7 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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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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Cheapflights Fare Finder

 
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Sun 4/10

6:00 a.m.-10:21 a.m.

1 stop4h 21m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 201

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Tue 29/9

6:00 a.m.-10:21 a.m.

1 stop4h 21m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 201

TorontoWashington, D.C.

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

YTZIAD

Toronto Island

Sat 3/10

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

Nonstop1h 30m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 207

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Tue 6/10

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

1 stop5h 06m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 213

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Wed 7/10

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

Nonstop1h 37m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 232

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Sat 17/10

7:43 p.m.-9:24 p.m.

Nonstop1h 41m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 232

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Tue 24/11

2:45 p.m.-4:24 p.m.

Nonstop1h 39m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 232

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Wed 14/10

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

Nonstop1h 37m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 232

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Tue 29/9

2:30 p.m.-4:07 p.m.

Nonstop1h 37m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 232

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Tue 20/10

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

Nonstop1h 37m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 232

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 43 resultsSorted by cheapest first
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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

Cheapflights Insights

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

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$ 357). Flying from Toronto to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of C$ 447). 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?

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 24% on your trip compared to booking a flight in the evening.

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

The most flights from YTO to IAD are scheduled on a Thursday (24 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

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

Airfare is below average for this route at the moment.
Toronto to Washington, D.C. Dulles Intl Airport flights typically cost between C$ 281 and C$ 510 in October.
The cheapest round-trip price found within the last 5 days was C$ 249 on Porter Airlines (30 Oct-7 Nov).

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

Montreal (YUL) – chosen by Cheapflights users on 50% 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?

Ottawa (YOW) is the most affordable 1-stop option, with an average round-trip price of C$ 361.

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

Flights via Ottawa (YOW) have the shortest average one-way travel time for 1-stop routes: 3h 52m.

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

Flights via Ottawa (YOW) offer the fastest connection on this route, with an average layover time of 1h 11m.

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

About 18% of weekly flights between Toronto and Washington, D.C. have experienced delays in the past year, with the average delay time being 116 minutes.

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

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

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

Wednesday 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 Toronto to Washington, D.C. flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 12% of flights being delayed.

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

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 34 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 day to fly from Toronto to Washington, D.C. Dulles Intl Airport?

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

Reviews of airlines servicing Dulles Intl

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.
Porter Airlines
8.0
Very good
461 reviews
Check prices

Crew

8.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Porter Airlines
8.0
Very good
461 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Crew

8.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Air Transat
7.7
Good
579 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Crew

8.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
United Airlines
7.4
Good
10,209 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Crew

8.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Air Canada
7.1
Good
11,631 reviews
Porter Airlines
8.0
Very good
461 reviews
Check prices

Crew

8.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.

Related info for your journey

  • 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 27m. The time it takes to get you to your destination can typically vary by up to 4h 25m. 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 Canada, at C$ 113, 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 Transat. Air Canada is 69% 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 Porter Airlines (C$ 155), Air Canada (C$ 193), and United Airlines (C$ 199).

  • 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 (80%), Copa Airlines (79%), Republic Airways( 79%).

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

    On average you can expect to pay C$ 2,494 for a flight from Toronto to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is C$ 241 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Dulles Intl) is currently priced at C$ 285.

  • 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$ 357). Flying from Toronto to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of C$ 447). 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
Silver Spring
Winchester
Alexandria
Hanover
Oxon Hill
Gaithersburg
Reston
Chantilly
Herndon
Ellicott City
Arlington
Fredericksburg
Ashburn
Rockville

Browse thousands of different options on Cheapflights for your next trip

Fly from Toronto to Dulles Intl on these airlines

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 4 airlines flying from Toronto to Dulles Intl

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 113AverageC$ 417FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 233AverageC$ 306FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 302AverageC$ 601FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 324AverageC$ 434FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Toronto today with Cheapflights!

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.

Can Cheapflights notify me if prices for flights from Toronto to Dulles Intl become cheaper?

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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