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$329+ Cheap flights from Dulles Intl (IAD) to Bismarck (BIS)

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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BIS
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Dulles Intl to Bismarck

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Bismarck (BIS). 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 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$329
(Delta)

Popular in

July

Cheapest in

February
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Bismarck flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Bismarck flights.
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From Washington, D.C. Dulles Intl to Bismarck
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Find flight deals from Dulles Intl to Bismarck

Cheapest flights from Dulles Intl to Bismarck
Explore the most affordable flight options available from Dulles Intl to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This Delta deal was found by Cheapflights users on 1/14. 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 2/127:00 am
IAD
-
BIS
1 stop6h 45m
Delta
Wed 2/185:00 am
BIS
-
IAD
1 stop7h 34m
Delta
Deal found 1/14$329
This Delta deal was found by Cheapflights users on 1/14. 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 2/67:15 am
IAD
-
BIS
2 stops10h 19m
Delta
Sat 2/216:10 am
BIS
-
IAD
2 stops9h 18m
Delta
Deal found 1/14$340
This Delta deal was found by Cheapflights users on 1/14. 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 2/147:00 am
IAD
-
BIS
1 stop6h 45m
Delta
Sat 2/2810:20 am
BIS
-
IAD
1 stop7h 34m
Delta
Deal found 1/14$354
This Delta deal was found by Cheapflights users on 1/14. 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 1/317:00 am
IAD
-
BIS
1 stop6h 46m
Delta
Sat 2/146:10 am
BIS
-
IAD
2 stops9h 18m
Delta
Deal found 1/14$364
This American Airlines deal was found by Cheapflights users on 1/14. 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 2/66:00 am
IAD
-
BIS
1 stop9h 24m
American Airlines
Sat 2/212:24 pm
BIS
-
IAD
1 stop7h 29m
American Airlines
Deal found 1/14$382
This Delta deal was found by Cheapflights users on 1/14. 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.
Mon 2/912:40 pm
IAD
-
BIS
2 stops11h 46m
Delta
Sun 2/156:10 am
BIS
-
IAD
2 stops9h 18m
Delta
Deal found 1/14$385
This American Airlines deal was found by Cheapflights users on 1/14. 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.
Sat 1/316:00 am
IAD
-
BIS
1 stop9h 24m
American Airlines
Sat 2/142:24 pm
BIS
-
IAD
1 stop7h 29m
American Airlines
Deal found 1/14$407

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Bismarck 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 15, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Bismarck that are best for you.

Fly from

Dulles Intl

Fly to

Bismarck

Route

Depart

Return

Price

Washington, D.C.Bismarck

IAD - BIS

IADBIS

Washington, D.C. Dulles Intl

Thu 2/26

7:00 am-12:45 pm

1 stop6h 45m

Bismarck

Sun 3/1

5:26 pm-11:55 pm

1 stop5h 29m

$329

Washington, D.C.Bismarck

IAD - BIS

IADBIS

Washington, D.C. Dulles Intl

Fri 2/6

7:15 am-4:34 pm

2 stops10h 19m

Bismarck

Sat 2/21

6:10 am-4:28 pm

2 stops9h 18m

$340

Washington, D.C.Bismarck

IAD - BIS

IADBIS

Washington, D.C. Dulles Intl

Sat 2/14

7:00 am-12:45 pm

1 stop6h 45m

Bismarck

Sat 2/28

10:20 am-6:54 pm

1 stop7h 34m

$354

Washington, D.C.Bismarck

IAD - BIS

IADBIS

Washington, D.C. Dulles Intl

Sat 1/31

7:00 am-12:46 pm

1 stop6h 46m

Bismarck

Sat 2/14

6:10 am-4:28 pm

2 stops9h 18m

$364

Washington, D.C.Bismarck

IAD - BIS

IADBIS

Washington, D.C. Dulles Intl

Wed 2/18

6:00 am-1:54 pm

1 stop8h 54m

Bismarck

Sat 2/21

2:24 pm-10:53 pm

1 stop7h 29m

$382

Washington, D.C.Bismarck

IAD - BIS

IADBIS

Washington, D.C. Dulles Intl

Thu 4/2

6:00 am-12:45 pm

2 stops7h 45m

Bismarck

Sat 4/18

1:10 pm-11:03 pm

2 stops8h 53m

$385

Washington, D.C.Bismarck

IAD - BIS

IADBIS

Washington, D.C. Dulles Intl

Sat 1/31

6:00 am-2:24 pm

1 stop9h 24m

Bismarck

Sat 2/14

2:24 pm-10:53 pm

1 stop7h 29m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Compare providers for flights from Dulles Intl to Bismarck

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 Bismarck in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 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 Washington, D.C. Dulles Intl Airport-Bismarck flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Bismarck flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Bismarck 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-Bismarck flights, Cheapflights users trust eDreams the most. eDreams 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-Bismarck 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 Bismarck

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

Related info for your journey

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

    Located just 2.5 mi from the city center, Bismarck is the airport most travelers will use when flying to Bismarck from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Bismarck (BIS) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

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

    For as low as $329, Delta can have you in Bismarck from Washington, D.C. Dulles Intl Airport in 6h 45m. Airlines will cover a distance of 1291 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Bismarck 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

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