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Dulles Intl

$181+ Cheap flights from Calgary (YYC) to Dulles Intl (IAD)

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — IAD
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Calgary to Washington, D.C. Dulles Intl are usually found in October or August, booked 87 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap flight deals from Calgary to Dulles Intl

Cheapest flights from Calgary to Dulles Intl
Explore the most affordable flight options available from Calgary to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.

This FlightHub deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:45 am
YYC
-
IAD
Nonstop4h 25m
WestJet
Mon 9/77:00 pm
IAD
-
YYC
Nonstop5h 00m
WestJet
Deal found 7/20$255
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am
YYC
-
IAD
1 stop15h 25m
United Airlines
Tue 10/1310:18 pm
IAD
-
YYC
1 stop15h 10m
United Airlines
Deal found 7/24$277
This Air Canada deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:30 am
YYC
-
IAD
1 stop6h 55m
Air Canada
Sat 9/263:45 pm
IAD
-
YYC
1 stop10h 02m
Air Canada
Deal found 7/20$283
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/172:58 pm
YYC
-
IAD
Nonstop4h 20m
United Airlines
Tue 9/228:20 am
IAD
-
YYC
1 stop16h 16m
United Airlines
Deal found 7/19$287
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/172:58 pm
YYC
-
IAD
Nonstop4h 20m
United Airlines
Fri 9/258:33 am
IAD
-
YYC
2 stops15h 15m
United Airlines
Deal found 7/19$293
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:58 pm
YYC
-
IAD
Nonstop4h 20m
United Airlines
Sun 9/1310:41 am
IAD
-
YYC
1 stop13h 55m
United Airlines
Deal found 7/19$295
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:45 am
YYC
-
IAD
1 stop14h 14m
United Airlines
Wed 10/146:45 am
IAD
-
YYC
1 stop12h 45m
United Airlines
Deal found 7/21$296
This Air Canada deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:50 am
YYC
-
IAD
1 stop7h 11m
Air Canada
Wed 8/263:45 pm
IAD
-
YYC
1 stop10h 07m
Air Canada
Deal found 7/23$299
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:00 am
YYC
-
IAD
2 stops13h 28m
United Airlines
Tue 9/222:43 pm
IAD
-
YYC
1 stop9h 05m
United Airlines
Deal found 7/19$300

Find flight deals from Calgary to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) 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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$255
(FlightHub)

One-way from

$181
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$409

Good round-trip deal

$202 or less

Good one-way deal

$243 or less
Provider with most accurate pricing for Calgary-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Calgary-Washington, D.C. Dulles Intl flights.
Search Deals
From Calgary to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Calgary to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Calgary to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Calgary to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Calgary 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 2,558,603 searches. Data last updated July 24, 2026.
Use the filters below to find and compare flights from Calgary to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Wed 10/7

6:00 am-11:25 pm

1 stop15h 25m

Washington, D.C. Dulles Intl

Tue 10/13

10:18 pm-11:28 am

1 stop15h 10m

$277

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Wed 10/7

6:00 am-11:25 pm

1 stop15h 25m

Washington, D.C. Dulles Intl

Wed 10/14

10:18 pm-1:53 pm

2 stops17h 35m

$287

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Thu 9/10

6:45 am-10:59 pm

1 stop14h 14m

Washington, D.C. Dulles Intl

Sun 9/13

6:15 am-6:30 pm

2 stops14h 15m

$300
Quickest round-trip

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Fri 8/28

12:32 pm-11:39 pm

1 stop9h 07m

Washington, D.C. Dulles Intl

Mon 8/31

7:00 pm-10:00 pm

Nonstop5h 00m

$360

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Tue 10/6

12:20 am-4:21 pm

2 stops14h 01m

Washington, D.C. Dulles Intl

Wed 10/14

6:00 am-5:10 pm

2 stops13h 10m

$381

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Thu 10/22

12:30 pm-10:52 pm

1 stop8h 22m

Washington, D.C. Dulles Intl

Tue 10/27

8:37 am-9:53 pm

2 stops15h 16m

$387
Cheapest one-way

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Sat 8/29

6:00 am-12:44 am

2 stops16h 44m

$192

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Mon 9/28

1:51 pm-11:56 am

2 stops20h 05m

$197
Quickest one-way

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Fri 10/23

12:25 pm-11:21 pm

2 stops8h 56m

$228

CalgaryWashington, D.C.

YYC - IAD

YYCIAD

Calgary

Mon 8/24

11:50 pm-4:38 pm

2 stops14h 48m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Calgary to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Calgary to Dulles Intl in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Calgary-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Calgary-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Calgary-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Calgary-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Calgary-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Calgary to Dulles Intl

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

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

The price you pay for your flight from Calgary to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Calgary to Washington, D.C. Dulles Intl Airport (average of $280). Flying from Calgary to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $660). 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 YYC to IAD?

Find hourly flight availability from Calgary 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 July 24, 2026.

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

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

Airfare is typical for this route at the moment.

Calgary to Washington, D.C. Dulles Intl Airport flights typically cost between $214 and $444 in September.
The cheapest round-trip price found within the last 5 days was $255 on WestJet (Sep 4-Sep 7).

The best insider tips for Calgary to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Calgary to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Jenna Scatena

Jenna Scatena

Expert on YYC

Journalist and Travel Writer, Jenna Scatena is an award-winning travel writer with a love for sharing stories and exploring new places, especially by Vespa. Though she's from San Francisco, she has spent a significant chunk of her vacation days over the last decade eating her way through Texas and sleeping in hotels around the world—especially in California, the Middle East, and Europe.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 July 24, 2026.
Read through reviews of airlines operating flights from Calgary to Washington, D.C. Dulles Intl Airport, such as United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,026 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,026 reviews
United Airlines
7.4
Good
10,026 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Canada
7.1
Good
11,373 reviews
United Airlines
7.4
Good
10,026 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Calgary 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 airport do you fly from for flights from Calgary to Washington, D.C. Dulles Intl?

    Located just 5.8 mi from the city center, Calgary is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Calgary. Booking flights from Calgary (YYC) to Washington, D.C. Dulles Intl should be relatively easy as there are 2 daily outbound flights to Washington, D.C. Dulles Intl from 2 different airlines.

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

    United Airlines and Air Canada can get you from Calgary to Washington, D.C. Dulles Intl Airport in just under 7h 11m. Your travel time can differ by up to 7h 03m. The distance from Calgary to Washington, D.C. Dulles Intl Airport is about 1946 mi. This flight may include one or multiple stops.

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

    According to our current data, Air Canada ($126), and United Airlines ($280) offers the cheapest pricing from Calgary to Washington, D.C. Dulles Intl Airport. You may be able to fly from Calgary to Washington, D.C. Dulles Intl Airport for 69% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $105. United Airlines flights start at $153 while deals on Air Canada start at $153 one-way.

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

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Calgary, check out the most reliable airlines to get you to your destination on time: Air Canada (65%), United Airlines (65%), Scandinavian Airlines( 65%).

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

    While on average a flight from Calgary to Washington, D.C. Dulles Intl Airport is generally $279, our data shows the cheapest flight currently is $167. When looking at the most popular route, (Calgary - Washington, D.C. Dulles Intl), you can expect to pay $303 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Calgary to Washington, D.C. Dulles Intl Airport (average of $280). Flying from Calgary to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $660). 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

Traveling 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
Alexandria
Tysons
Arlington
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Sterling
Clinton
Hunt Valley
Cordova

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Alternative routes for Calgary to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Calgary to Reagan-National flights
Calgary to Baltimore flights
Edmonton to Baltimore flights

Top 2 airlines flying from Calgary to Dulles Intl

Discover the top 2 airlines that operate flights from Calgary 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 2,558,603 searches. Data last updated July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$126Average$489FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$280Average$617FlexibilityNo cancel feeOn-time69%

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