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$170+ Cheap flights from Dulles Intl (IAD) to Calgary (YYC)

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYC
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Calgary are usually found in October or November, booked 19 days in advance, depart on a Monday or Friday and return on a Saturday

Cheap flight deals from Dulles Intl to Calgary

Cheapest flights from Dulles Intl to Calgary
Explore the most affordable flight options available from Dulles Intl to Calgary. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.

This Booking.com deal was found by Cheapflights users on 7/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:00 pm
IAD
-
YYC
Nonstop5h 00m
Multiple Airlines
Wed 9/25:50 am
YYC
-
IAD
1 stop7h 05m
Multiple Airlines
Deal found 7/26$277
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:00 pm
IAD
-
YYC
Nonstop5h 00m
Multiple Airlines
Tue 9/15:50 am
YYC
-
IAD
1 stop7h 11m
Multiple Airlines
Deal found 7/24$280
This Booking.com deal was found by Cheapflights users on 7/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:00 pm
IAD
-
YYC
Nonstop5h 00m
Multiple Airlines
Thu 9/105:50 am
YYC
-
IAD
1 stop7h 10m
Multiple Airlines
Deal found 7/25$286
This Justfly.com deal was found by Cheapflights users on 7/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:00 pm
IAD
-
YYC
Nonstop5h 00m
WestJet
Mon 8/2411:45 am
YYC
-
IAD
Nonstop4h 25m
WestJet
Deal found 7/25$298
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:00 pm
IAD
-
YYC
Nonstop5h 00m
Multiple Airlines
Tue 8/255:50 am
YYC
-
IAD
1 stop7h 11m
Multiple Airlines
Deal found 7/24$300
This FlightHub deal was found by Cheapflights users on 7/27. 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.
Mon 8/317:00 pm
IAD
-
YYC
Nonstop5h 00m
WestJet
Mon 9/711:45 am
YYC
-
IAD
Nonstop4h 25m
WestJet
Deal found 7/27$303
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:00 pm
IAD
-
YYC
Nonstop5h 00m
Multiple Airlines
Fri 9/117:00 am
YYC
-
IAD
1 stop8h 18m
Multiple Airlines
Deal found 7/27$315

Find flight deals from Dulles Intl to Calgary

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Calgary (YYC). 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 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(Booking.com)

One-way from

$170
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$537

Good round-trip deal

$414 or less

Good one-way deal

$184 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Calgary flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Calgary flights.
Search Deals
From Washington, D.C. Dulles Intl to Calgary
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Calgary
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($19 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 Washington, D.C. Dulles Intl to Calgary.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Calgary.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Calgary 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 27, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Calgary that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Thu 8/20

8:20 am-10:37 pm

1 stop16h 17m

Calgary

Thu 8/27

2:58 pm-9:18 pm

Nonstop4h 20m

$364

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Mon 9/7

6:30 am-9:48 pm

1 stop17h 18m

Calgary

Fri 9/11

5:50 am-3:00 pm

1 stop7h 10m

$364
Quickest round-trip

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Wed 9/23

9:07 am-11:58 am

Nonstop4h 51m

Calgary

Sat 10/3

11:15 am-9:14 pm

1 stop7h 59m

$407

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Tue 9/8

11:10 am-10:20 pm

2 stops13h 10m

Calgary

Tue 9/15

12:25 pm-11:23 pm

2 stops8h 58m

$452

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Sun 8/23

9:07 am-11:58 am

Nonstop4h 51m

Calgary

Sat 8/29

8:00 am-7:23 pm

1 stop9h 23m

$460

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Wed 9/2

9:07 am-11:58 am

Nonstop4h 51m

Calgary

Sun 9/6

6:00 am-5:50 pm

1 stop9h 50m

$461

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Tue 9/1

2:43 pm-9:48 pm

1 stop9h 05m

Calgary

Wed 9/9

2:58 pm-9:18 pm

Nonstop4h 20m

$469

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Sat 8/8

12:29 pm-9:05 pm

1 stop10h 36m

Calgary

Sat 8/15

8:10 am-11:21 pm

2 stops13h 11m

$478

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Tue 8/11

7:10 am-1:10 pm

1 stop8h 00m

Calgary

Wed 8/12

7:10 pm-10:23 am

2 stops13h 13m

$492

Washington, D.C.Calgary

IAD - YYC

IADYYC

Washington, D.C. Dulles Intl

Wed 8/19

5:15 pm-10:37 pm

1 stop7h 22m

Calgary

Sun 8/23

8:00 am-12:32 am

1 stop14h 32m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Dulles Intl to Calgary

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 Dulles Intl to Calgary in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy2 starsTrust 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 Washington, D.C. Dulles Intl Airport-Calgary flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Calgary flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Calgary flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Calgary 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 Washington, D.C. Dulles Intl Airport-Calgary 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 Dulles Intl to Calgary

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

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

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Calgary may vary depending on when you book. For the best chance of a lower fare, look to book 18 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 Washington, D.C. Dulles Intl Airport to Calgary?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Calgary (average of $301). Flying from Washington, D.C. Dulles Intl Airport to Calgary in March is currently the most expensive (average of $718). 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 IAD to YYC?

Find hourly flight availability from Dulles Intl to Calgary. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 27, 2026.

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

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

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Calgary flights typically cost between $346 and $677 in August.
The cheapest round-trip price found within the last 5 days was $277 on Multiple Airlines (Aug 24-Sep 2).

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

Get insights into the airlines that provide service to Calgary. 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 Calgary. Reviews last updated July 27, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Calgary, such as Delta,United Airlines, andWestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,483 reviews

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,483 reviews
Delta
7.8
Good
8,483 reviews

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,042 reviews
Delta
7.8
Good
8,483 reviews

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
WestJet
7.2
Good
3,415 reviews
Delta
7.8
Good
8,483 reviews

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,837 reviews
Delta
7.8
Good
8,483 reviews

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Air Canada
7.1
Good
11,392 reviews
Delta
7.8
Good
8,483 reviews

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Calgary. 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 into for flights to Calgary from 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 Calgary from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Calgary (YYC) should be relatively easy as there are 2 daily inbound flights from Washington, D.C. Dulles Intl from 5 different airlines.

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

    For as low as $452, United Airlines can have you in Calgary from Washington, D.C. Dulles Intl Airport in 13h 10m. There are 1946 mi between Washington, D.C. Dulles Intl Airport and Calgary. This flight may include one or multiple stops.

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

    Flying on Delta is currently your cheapest option to Calgary, with prices starting at $124. Additional round-trip tickets that might be worth considering are offered by Air Canada and WestJet, with the lowest prices starting at $145 and $174, respectively. Delta is 75% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $80. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Calgary for a low price.

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

    Before booking your flight to Calgary from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (95%), United Airlines (95%), Scandinavian Airlines( 65%).

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

    While on average a flight from Washington, D.C. Dulles Intl Airport to Calgary is generally $401, our data shows the cheapest flight currently is $132. When looking at the most popular route, (Washington, D.C. Dulles Intl - Calgary), you can expect to pay $315 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Calgary (average of $301). Flying from Washington, D.C. Dulles Intl Airport to Calgary in March is currently the most expensive (average of $718). 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 Calgary?

Book flights to Calgary if you plan to visit one of these locations
Canmore

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Alternative routes for Dulles Intl to Calgary

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

Top 5 airlines flying from Dulles Intl to Calgary

Discover the top 5 airlines that operate flights from Dulles Intl to Calgary. 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 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$124Average$433FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$145Average$550FlexibilityNo cancel feeOn-time67%
WestJetCheapest$174Average$386FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$265Average$625FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$294Average$478FlexibilityNo cancel feeOn-time71%

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