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Dulles Intl

$334+ Cheap flights from Bismarck (BIS) 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — IAD
May 28 — Jun 41
Thu 5/28
Thu 6/4
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 April 28, 2026.

This Delta deal was found by Cheapflights users on 4/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:42 pm
BIS
-
IAD
1 stop4h 38m
Delta
Tue 6/306:00 am
IAD
-
BIS
1 stop5h 36m
Delta
Deal found 4/24$349
This Delta deal was found by Cheapflights users on 4/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:42 pm
BIS
-
IAD
1 stop4h 56m
Delta
Mon 5/116:00 am
IAD
-
BIS
1 stop5h 29m
Delta
Deal found 4/24$399
This United Airlines deal was found by Cheapflights users on 4/28. 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 11/45:45 am
BIS
-
IAD
1 stop6h 42m
United Airlines
Mon 11/95:15 pm
IAD
-
BIS
1 stop7h 22m
United Airlines
Deal found 4/28$412
This Delta deal was found by Cheapflights users on 4/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:14 pm
BIS
-
IAD
2 stops8h 42m
Delta
Thu 6/116:00 am
IAD
-
BIS
1 stop5h 36m
Delta
Deal found 4/24$429
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:42 pm
BIS
-
IAD
1 stop4h 56m
Delta
Sat 5/1612:45 pm
IAD
-
BIS
2 stops7h 49m
Delta
Deal found 4/27$444
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 9/111:45 pm
BIS
-
IAD
1 stop8h 02m
American Airlines
Mon 9/142:46 pm
IAD
-
BIS
1 stop9h 10m
American Airlines
Deal found 4/28$456

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 April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(Delta)

One-way from

$334
(Delta)
Provider with most accurate pricing for Bismarck-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Bismarck-Washington, D.C. Dulles Intl flights.
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From Bismarck to Washington, D.C. Dulles Intl
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One-way flight from Bismarck to Washington, D.C. Dulles Intl
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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 April 28, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Tue 6/23

5:42 pm-11:20 pm

1 stop4h 38m

Washington, D.C. Dulles Intl

Tue 6/30

6:00 am-10:36 am

1 stop5h 36m

$349

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Fri 5/8

5:42 pm-11:38 pm

1 stop4h 56m

Washington, D.C. Dulles Intl

Mon 5/11

6:58 pm-11:22 pm

1 stop5h 24m

$399

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Sat 6/6

1:14 pm-10:56 pm

2 stops8h 42m

Washington, D.C. Dulles Intl

Thu 6/11

6:00 am-10:36 am

1 stop5h 36m

$429

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Fri 9/11

1:45 pm-10:47 pm

1 stop8h 02m

Washington, D.C. Dulles Intl

Mon 9/14

2:46 pm-10:56 pm

1 stop9h 10m

$456

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Wed 6/24

5:00 am-4:35 pm

2 stops10h 35m

Washington, D.C. Dulles Intl

Tue 6/30

8:27 am-5:02 pm

2 stops9h 35m

$515
Cheapest one-way
Quickest one-way

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Mon 5/18

5:42 pm-11:38 pm

1 stop4h 56m

$334

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Mon 5/18

1:55 pm-11:40 am

2 stops20h 45m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Sorted by cheapest first

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 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 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.

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 April 28, 2026.
Peruse reviews from past customers who have flown with Delta from Bismarck to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,467 reviews

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,467 reviews
Delta
7.9
Good
8,467 reviews

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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. 1 airline 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 can get you from Bismarck to Washington, D.C. Dulles Intl Airport in just under 4h 38m. Your travel time can differ by up to . Airlines will cover a distance of 1291 mi.

  • What is the cheapest airline to fly from Bismarck to Washington, D.C. Dulles Intl Airport round-trip?

    According to our current data, Delta ($317), offers the cheapest pricing from Bismarck to Washington, D.C. Dulles Intl Airport.

  • 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
Tysons
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Woodbridge
Hanover
Laurel
Largo
Upper Marlboro
Waldorf
Clinton
Hunt Valley
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Bismarck to Dulles Intl

Discover the top airline that operate flights from Bismarck 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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$317Average$469FlexibilityNo cancel feeOn-timeN/A

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