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Dulles Intl

$289+ Cheap flights from Bismarck (BIS) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — IAD
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Bismarck to Dulles Intl

Cheapest flights from Bismarck to Dulles Intl
Explore the most affordable flight options available from Bismarck to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:05 am
BIS
-
IAD
1 stop9h 45m
American Airlines
Tue 2/245:37 pm
IAD
-
BIS
1 stop7h 18m
American Airlines
Deal found 1/19$289
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:26 pm
BIS
-
IAD
1 stop5h 29m
Delta
Tue 2/245:13 pm
IAD
-
BIS
2 stops7h 09m
Delta
Deal found 1/19$334
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:47 am
BIS
-
IAD
1 stop4h 45m
Delta
Thu 4/166:00 am
IAD
-
BIS
1 stop7h 38m
Delta
Deal found 1/19$354
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:30 pm
BIS
-
IAD
1 stop4h 59m
Delta
Mon 5/116:15 am
IAD
-
BIS
1 stop7h 26m
Delta
Deal found 1/20$399
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Thu 2/51:35 pm
BIS
-
IAD
1 stop8h 47m
United Airlines
Mon 2/95:15 pm
IAD
-
BIS
1 stop7h 15m
United Airlines
Deal found 1/21$400
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/45:00 am
BIS
-
IAD
1 stop7h 35m
Delta
Sun 2/87:00 am
IAD
-
BIS
1 stop6h 46m
Delta
Deal found 1/20$414
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/92:26 pm
BIS
-
IAD
1 stop8h 02m
American Airlines
Thu 4/168:11 pm
IAD
-
BIS
2 stops17h 02m
American Airlines
Deal found 1/20$436
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/91:45 pm
BIS
-
IAD
1 stop8h 49m
United Airlines
Wed 4/159:55 am
IAD
-
BIS
1 stop7h 28m
United Airlines
Deal found 1/20$442

Find flight deals from Bismarck to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Bismarck (BIS) 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$289
(American Airlines)

Popular in

January

Cheapest in

March

Average price

$1,068
Provider with most accurate pricing for Bismarck-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bismarck-Washington, D.C. Dulles Intl flights.
Search Deals
From Bismarck to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 32% potential increase in price ($227 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($61 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bismarck 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 January 21, 2026.
Use the filters below to find and compare flights from Bismarck to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Bismarck

Fly to

Dulles Intl

Route

Depart

Return

Price

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Thu 2/19

5:26 pm-11:55 pm

1 stop5h 29m

Washington, D.C. Dulles Intl

Tue 2/24

5:13 pm-11:22 pm

2 stops7h 09m

$334

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Thu 4/9

7:47 am-1:32 pm

1 stop4h 45m

Washington, D.C. Dulles Intl

Thu 4/16

6:00 am-12:38 pm

1 stop7h 38m

$354

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Fri 5/8

5:30 pm-11:29 pm

1 stop4h 59m

Washington, D.C. Dulles Intl

Mon 5/11

6:15 am-12:41 pm

1 stop7h 26m

$399

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Thu 2/5

1:35 pm-11:22 pm

1 stop8h 47m

Washington, D.C. Dulles Intl

Mon 2/9

5:15 pm-11:30 pm

1 stop7h 15m

$400

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Wed 2/4

5:00 am-1:35 pm

1 stop7h 35m

Washington, D.C. Dulles Intl

Sun 2/8

7:00 am-12:46 pm

1 stop6h 46m

$414

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Fri 3/13

4:50 pm-11:41 pm

1 stop5h 51m

Washington, D.C. Dulles Intl

Tue 3/17

2:15 pm-8:19 pm

1 stop7h 04m

$419

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Thu 4/9

1:45 pm-11:34 pm

1 stop8h 49m

Washington, D.C. Dulles Intl

Thu 4/16

9:55 am-4:23 pm

1 stop7h 28m

$454

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Thu 3/12

7:47 am-1:32 pm

1 stop4h 45m

Washington, D.C. Dulles Intl

Tue 3/17

7:00 am-12:45 pm

1 stop6h 45m

$463

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Tue 6/9

2:03 pm-10:41 pm

1 stop7h 38m

Washington, D.C. Dulles Intl

Sun 6/14

6:22 am-1:33 pm

1 stop8h 11m

$465

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Mon 4/20

2:26 pm-11:28 pm

1 stop8h 02m

$305

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 12 results
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Compare providers for flights from Bismarck 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 Bismarck to Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
PricelinePrice 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 Bismarck-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 Bismarck-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bismarck-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 Bismarck-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Expedia the most. Expedia 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 Bismarck-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 Bismarck to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Bismarck 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.

Related info for your journey

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

    Bismarck (BIS), located 2.5 mi from the city center, is the airport you fly out of when you book flights from Bismarck to Washington, D.C. Dulles Intl. 0 airlines have flights from Bismarck to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Bismarck to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

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

    Delta and United Airlines can get you from Bismarck to Washington, D.C. Dulles Intl Airport in just under 5h 29m. Your travel time can differ by up to 3h 18m. Airlines will cover a distance of 1291 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bismarck 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.

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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Herndon
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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