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Cheap flights from Canada to Washington, D.C. Dulles Intl Airport from C$ 149

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — IAD
19 Aug — 26 Aug1
1 adult

Cheap 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 14 August 2025.

Round-trip from

C$ 190

One-way from

C$ 149

Popular in

June

Cheapest in

April

Average price

C$ 349

Good round-trip deal

C$ 251 or less

Good one-way deal

C$ 156 or less
WestJet
  • WestJet
  • 8/9-15/9
  • Nonstop
  • 9h 14m total
  • Canada to Washington, D.C.
Search Deals
United Airlines
  • United Airlines
  • 4/10
  • 1 total stop
  • 7h 34m total
  • Canada to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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.
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Find flight deals from Canada to Dulles Intl

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 14 August 2025.

Fri 5/911:30 a.m.YYC - IAD
Nonstop4h 20mWestJet
Mon 8/96:45 p.m.IAD - YYC
Nonstop4h 54mWestJet
Deal found 13/8C$ 211
Thu 2/102:50 p.m.YHZ - IAD
1 stop7h 21mUnited Airlines
Mon 6/106:15 a.m.IAD - YHZ
1 stop6h 48mUnited Airlines
Deal found 14/8C$ 238
Wed 3/1211:35 a.m.YHZ - IAD
2 stops6h 59mPorter Airlines
Fri 5/1211:40 a.m.IAD - YHZ
1 stop7h 25mPorter Airlines
Deal found 14/8C$ 255
Mon 8/98:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Thu 11/911:35 a.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 12/8C$ 258
Wed 3/91:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Sun 14/911:35 a.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 12/8C$ 259
Mon 10/118:25 a.m.YHZ - IAD
2 stops10h 09mPorter Airlines
Mon 17/1111:40 a.m.IAD - YHZ
2 stops8h 20mPorter Airlines
Deal found 14/8C$ 259
Mon 8/98:00 a.m.YEG - IAD
1 stop7h 50mWestJet
Mon 15/96:45 p.m.IAD - YEG
1 stop7h 42mWestJet
Deal found 14/8C$ 259
Fri 12/91:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Wed 24/94:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 13/8C$ 261
Fri 26/91:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Fri 3/104:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 11/8C$ 262
Thu 4/95:30 p.m.YHZ - IAD
1 stop4h 35mAir Canada
Tue 9/99:35 a.m.IAD - YHZ
1 stop5h 35mAir Canada
Deal found 13/8C$ 262
Thu 4/98:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Sun 7/94:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 12/8C$ 263
Wed 3/91:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Tue 23/94:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 12/8C$ 269

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 14 August 2025.
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

Canada

Fly to

Dulles Intl

Route

Depart

Return

Price

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Fri 5/9

11:30 a.m.-5:50 p.m.

Nonstop4h 20m

Washington, D.C. Dulles Intl

Mon 8/9

6:45 p.m.-9:39 p.m.

Nonstop4h 54m

C$ 211

HalifaxWashington, D.C.

YHZ - IAD

YHZIAD

Halifax Intl

Thu 2/10

2:50 p.m.-9:11 p.m.

1 stop7h 21m

Washington, D.C. Dulles Intl

Mon 6/10

6:15 a.m.-2:03 p.m.

1 stop6h 48m

C$ 238

HalifaxWashington, D.C.

YHZ - IAD

YHZIAD

Halifax Intl

Wed 3/12

3:15 p.m.-9:21 p.m.

1 stop7h 06m

Washington, D.C. Dulles Intl

Fri 5/12

8:45 a.m.-2:31 p.m.

1 stop4h 46m

C$ 238

HalifaxWashington, D.C.

YHZ - IAD

YHZIAD

Halifax Intl

Wed 3/12

11:35 a.m.-5:34 p.m.

2 stops6h 59m

Washington, D.C. Dulles Intl

Fri 5/12

11:40 a.m.-8:05 p.m.

1 stop7h 25m

C$ 255

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Tue 9/9

1:35 p.m.-3:06 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 14/9

11:35 a.m.-1:08 p.m.

Nonstop1h 33m

C$ 258

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 13/9

1:35 p.m.-3:06 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sat 20/9

4:20 p.m.-5:53 p.m.

Nonstop1h 33m

C$ 258

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 8/9

8:45 a.m.-10:16 a.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Thu 11/9

11:35 a.m.-1:08 p.m.

Nonstop1h 33m

C$ 258

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 8/9

1:35 p.m.-3:06 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 14/9

11:35 a.m.-1:08 p.m.

Nonstop1h 33m

C$ 258

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 8/9

1:35 p.m.-3:06 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Wed 10/9

4:20 p.m.-5:53 p.m.

Nonstop1h 33m

C$ 258

EdmontonWashington, D.C.

YEG - IAD

YEGIAD

Edmonton

Mon 8/9

8:00 a.m.-5:50 p.m.

1 stop7h 50m

Washington, D.C. Dulles Intl

Mon 15/9

6:45 p.m.-12:27 a.m.

1 stop7h 42m

C$ 261

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/8

Showing 1-10 of 60 results
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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

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

Currently, February is the cheapest month in which you can book a flight from Canada to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from Canada 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 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 14 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Canada to Washington, D.C. Dulles Intl Airport as you normally would.

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 14 August 2025.

The most flights from CA0 to IAD are scheduled on a Monday (18 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

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 August 2025.
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
332 reviews
Check prices

Entertainment

7.0

Crew

8.7

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
332 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Entertainment

7.0

Crew

8.7

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
427 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Entertainment

7.0

Crew

8.7

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,916 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Entertainment

7.0

Crew

8.7

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
3,015 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Entertainment

7.0

Crew

8.7

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,949 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Entertainment

7.0

Crew

8.7

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • 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 United Airlines, which is currently one of the cheapest options available, starting at C$ 149. Porter Airlines flights start at C$ 160 while deals on Air Canada start at C$ 175 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, Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl and Toronto Island - Washington, D.C. Dulles Intl.

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

    Consider Republic Airways (81%), United Airlines (79%) or Air Canada (76%) 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$ 199. While the most popular route (Toronto Pearson Intl - Washington, D.C. Dulles Intl) can be booked for C$ 309 on average our data indicates C$ 1,090 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, February is the cheapest month in which you can book a flight from Canada to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from Canada 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

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

Browse thousands of different options on Cheapflights for your next trip

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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
Pierre Elliott Trudeau Intl to Reagan-National flights
Pearson Intl to Reagan-National flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Pearson Intl to Baltimore flights
Toronto Island to Dulles Intl flights
Vancouver Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Baltimore flights
Vancouver Intl to Baltimore flights
Vancouver Intl to Reagan-National flights
Ottawa to Dulles Intl flights
Ottawa to Reagan-National flights
Calgary to Dulles Intl flights
Calgary to Baltimore flights
Toronto Island to Baltimore flights
Calgary to Reagan-National flights
Toronto Island to Reagan-National flights
Winnipeg to Dulles Intl flights
Buffalo to Baltimore flights
Edmonton to Dulles Intl flights
Edmonton to Reagan-National flights
Winnipeg to Reagan-National flights
Edmonton to Baltimore flights
Ottawa to Baltimore flights
Winnipeg to Baltimore flights
Halifax to Dulles Intl flights
Québec City to Reagan-National flights
Québec City to Dulles Intl flights
Seattle to Reagan-National flights
Kelowna to Dulles Intl flights
Saskatoon to Reagan-National flights
Seattle to Dulles Intl flights
Halifax to Baltimore flights
Halifax to Reagan-National flights
Saskatoon to Baltimore flights
Victoria to Baltimore flights
Québec City to Baltimore flights
St. John's to Dulles Intl flights
London to Baltimore flights
Regina to Reagan-National flights

Top 8 airlines flying from Canada to Dulles Intl

Discover the top 8 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 14 August 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 189AverageC$ 283FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 194AverageC$ 510FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 204AverageC$ 351FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 212AverageC$ 389FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 257AverageC$ 554FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 277AverageC$ 525FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 286AverageC$ 648FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 505AverageC$ 788FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines 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.

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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.

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