Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Canada to Washington, D.C. Dulles Intl Airport from C$ 166

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 17/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — IAD
31 May — 7 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Canada to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Canada to Dulles Intl
Explore the most affordable flight options available from Canada to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2026.

Wed 3/61:50 p.m.
YTZ
-
IAD
Nonstop1h 31m
Porter Airlines
Mon 8/64:05 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 27/4C$ 269
Wed 3/610:45 a.m.
YTZ
-
IAD
1 stop4h 18m
Air Canada
Mon 8/65:15 p.m.
IAD
-
YTZ
Nonstop1h 27m
Air Canada
Deal found 28/4C$ 271
Thu 11/62:55 p.m.
YTZ
-
IAD
Nonstop1h 17m
Air Canada
Tue 16/65:15 p.m.
IAD
-
YTZ
Nonstop1h 27m
Air Canada
Deal found 29/4C$ 273
Thu 21/59:15 a.m.
YTZ
-
IAD
Nonstop1h 31m
Porter Airlines
Mon 25/54:05 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 28/4C$ 277
Thu 25/61:45 p.m.
YTZ
-
IAD
Nonstop1h 31m
Porter Airlines
Mon 29/64:00 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 30/4C$ 278
Sat 20/69:15 a.m.
YTZ
-
IAD
Nonstop1h 31m
Porter Airlines
Fri 26/64:00 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 26/4C$ 280
Fri 17/711:45 a.m.
YYC
-
IAD
Nonstop4h 25m
WestJet
Fri 24/77:00 p.m.
IAD
-
YYC
Nonstop5h 00m
WestJet
Deal found 26/4C$ 281
Sat 13/68:30 a.m.
YTZ
-
IAD
1 stop6h 33m
Air Canada
Sat 20/65:15 p.m.
IAD
-
YTZ
Nonstop1h 27m
Air Canada
Deal found 29/4C$ 281
Mon 27/711:45 a.m.
YYC
-
IAD
Nonstop4h 25m
WestJet
Mon 3/87:00 p.m.
IAD
-
YYC
Nonstop5h 00m
WestJet
Deal found 29/4C$ 282
Tue 23/61:45 p.m.
YTZ
-
IAD
Nonstop1h 31m
Porter Airlines
Mon 29/64:00 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 29/4C$ 282
Thu 4/610:45 a.m.
YTZ
-
IAD
1 stop4h 18m
Air Canada
Mon 8/65:15 p.m.
IAD
-
YTZ
Nonstop1h 27m
Air Canada
Deal found 30/4C$ 284
Wed 27/51:50 p.m.
YTZ
-
IAD
Nonstop1h 31m
Porter Airlines
Tue 2/611:30 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 27/4C$ 285

Find flight deals from Canada to Dulles Intl

Keep the following information in mind while searching for Canada to Dulles Intl flight deals. Data was last updated 1 May 2026.

Round-trip from

C$ 269

One-way from

C$ 166

Popular in

March

Cheapest in

October

Average price

C$ 346

Good round-trip deal

C$ 307 or less

Good one-way deal

C$ 224 or less
Porter Airlines
  • Porter Airlines
  • 3/6-8/6
  • Nonstop
  • 3h 01m total
  • Canada to Washington, D.C.
Search Deals
WestJet
  • WestJet
  • 17/7
  • Nonstop
  • 4h 25m total
  • Canada to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Canada to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Canada to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Canada 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 1 May 2026.
Use the filters below to find and compare flights from Canada to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 30/5

9:15 a.m.-10:46 a.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 7/6

4:05 p.m.-5:35 p.m.

Nonstop1h 30m

C$ 271

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 3/6

10:45 a.m.-3:03 p.m.

1 stop4h 18m

Washington, D.C. Dulles Intl

Mon 8/6

5:15 p.m.-6:42 p.m.

Nonstop1h 27m

C$ 271

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 30/5

12:30 p.m.-6:58 p.m.

1 stop6h 28m

Washington, D.C. Dulles Intl

Sun 7/6

5:15 p.m.-6:42 p.m.

Nonstop1h 27m

C$ 271

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 27/5

1:50 p.m.-3:21 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 2/6

11:30 a.m.-1:00 p.m.

Nonstop1h 30m

C$ 285

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 29/5

1:50 p.m.-3:21 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 31/5

4:05 p.m.-5:35 p.m.

Nonstop1h 30m

C$ 300

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 27/5

1:50 p.m.-3:21 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 1/6

11:30 a.m.-1:00 p.m.

Nonstop1h 30m

C$ 310

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sun 14/6

1:50 p.m.-3:21 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 21/6

4:00 p.m.-5:30 p.m.

Nonstop1h 30m

C$ 310

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 5/6

9:15 a.m.-10:46 a.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sat 6/6

11:30 a.m.-1:00 p.m.

Nonstop1h 30m

C$ 311

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 28/5

4:04 p.m.-10:56 p.m.

1 stop6h 52m

Washington, D.C. Dulles Intl

Fri 5/6

6:00 a.m.-1:30 p.m.

1 stop7h 30m

C$ 319

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Wed 27/5

12:05 p.m.-6:53 p.m.

1 stop6h 48m

Washington, D.C. Dulles Intl

Sat 6/6

11:15 a.m.-5:21 p.m.

1 stop6h 06m

C$ 321

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Canada to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Canada 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 Canada to Washington, D.C. Dulles Intl Airport

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

The best time to book flights from Canada to Washington, D.C. Dulles Intl Airport is 35 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 month to book a flight from Canada to Washington, D.C. Dulles Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Canada to Washington, D.C. Dulles Intl Airport (average of C$ 102). Flying from Canada to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of C$ 863). 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 CA to IAD?

Find hourly flight availability from Canada 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 1 May 2026.

It’s optimal to fly from Canada to Washington, D.C. Dulles Intl Airport in the evening. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Canada to Dulles Intl. Price data was last updated on 25 April 2026.

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

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

Explore weekly flight availability from Canada 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 1 May 2026.

The most flights from CA0 to IAD are scheduled on a Thursday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

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

About 15% of weekly flights between Canada and Washington, D.C. have experienced delays in the past year, with the average delay time being 120 minutes.

What is the most punctual flight time for Canada 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?

Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Canada to Washington, D.C. flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 13% of flights being delayed.

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 1 May 2026.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andUnited Airlines from Canada to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
435 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.8
Good
546 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,678 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,331 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,983 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Related info for your journey

Find useful and relevant information for your journey from Canada 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 Canada to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Canada to Washington, D.C. Dulles Intl Airport in 1h 31m. Fly via Porter Airlines, Air Canada, or Delta to get the fastest option. There are 546 km between Canada and Washington, D.C. Dulles Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 131. WestJet flights start at C$ 144 while deals on Air Transat start at C$ 145 one-way.

  • What are the most popular routes from Canada to Washington, D.C. Dulles Intl Airport?

    The most popular flight routes from Canada to Washington, D.C. Dulles Intl Airport are Toronto Pearson Intl - Washington, D.C. Dulles Intl, Toronto Island - Washington, D.C. Dulles Intl and Vancouver Intl - Washington, D.C. Dulles Intl.

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

    Consider Copa Airlines (81%), Republic Airways (81%) or Air Canada (75%) when booking your flight. These represent the most reliable airlines when flying from Canada to Washington, D.C. Dulles Intl Airport.

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

    Looking at all options, your cheapest flight can be booked for C$ 226. While the most popular route (Toronto Pearson Intl - Washington, D.C. Dulles Intl) can be booked for C$ 316 on average, our data indicates C$ 1,109 when flying from Canada to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Canada to Washington, D.C. Dulles Intl Airport (average of C$ 102). Flying from Canada to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of C$ 863). 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
Warrenton
Winchester
Hanover
Fairfax
Reston
Ellicott City
Oxon Hill
Gaithersburg
Arlington
Herndon
Manassas
Fredericksburg
Alexandria
Rockville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Canada to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Dulles Intl flights
Pearson Intl to Reagan-National flights
Toronto Island to Dulles Intl flights
Pearson Intl to Baltimore flights
Vancouver Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Vancouver Intl to Baltimore flights
Toronto Island to Reagan-National flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Toronto Island to Baltimore flights
Calgary to Dulles Intl flights
Vancouver Intl to Reagan-National flights
Pierre Elliott Trudeau Intl to Baltimore flights
Ottawa to Dulles Intl flights
Ottawa to Reagan-National flights
Buffalo to Baltimore flights
Calgary to Baltimore flights
Ottawa to Baltimore flights
Winnipeg to Baltimore flights
Edmonton to Dulles Intl flights
Winnipeg to Dulles Intl flights
Calgary to Reagan-National flights
Edmonton to Reagan-National flights
Edmonton to Baltimore flights
Québec City to Reagan-National flights
Québec City to Dulles Intl flights
Halifax to Dulles Intl flights
Seattle to Dulles Intl flights
Winnipeg to Reagan-National flights
Halifax to Baltimore flights
Regina to Dulles Intl flights
Saskatoon to Baltimore flights
Regina to Baltimore flights
Québec City to Baltimore flights
Regina to Reagan-National flights
Saskatoon to Reagan-National flights
Seattle to Reagan-National flights
Kelowna to Dulles Intl flights
Victoria to Dulles Intl flights
Halifax to Reagan-National flights
London to Reagan-National flights
London to Dulles Intl flights
Kelowna to Reagan-National flights
Victoria to Baltimore flights
Fredericton to Dulles Intl flights

Top 7 airlines flying from Canada to Dulles Intl

Discover the top 7 airlines that operate flights from Canada 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 1 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 134AverageC$ 509FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 135AverageC$ 572FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 137AverageC$ 475FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 147AverageC$ 559FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 186AverageC$ 234FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 221AverageC$ 338FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 294AverageC$ 511FlexibilityNo cancel feeOn-time50%
Search Air Transat 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 Canada to Dulles Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Canada to Dulles Intl. 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 Canada to Dulles Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Canada to Dulles Intl for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Canada to Dulles Intl flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Canada 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.