HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$208+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — IAD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bismarck to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 18, 2025.

This Delta deal was found by Cheapflights users on 12/17. 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 12/1911:47 amBIS - IAD
1 stop5h 25mDelta
Fri 12/262:21 pmIAD - BIS
1 stop6h 28mDelta
Deal found 12/17$439
This Delta deal was found by Cheapflights users on 12/17. 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 12/225:00 amBIS - IAD
2 stops9h 14mDelta
Fri 12/262:21 pmIAD - BIS
1 stop6h 28mDelta
Deal found 12/17$444
This Delta deal was found by Cheapflights users on 12/17. 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 12/195:00 amBIS - IAD
1 stop5h 18mDelta
Mon 12/296:00 amIAD - BIS
1 stop5h 38mDelta
Deal found 12/17$564

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 December 18, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$257
(Delta)

One-way from

$208
(Kiwi.com)

Popular in

October

Cheapest in

March

Average price

$505
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
One-way flight from Bismarck to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($189 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
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 1/8

5:27 pm-11:57 pm

1 stop5h 30m

Washington, D.C. Dulles Intl

Thu 1/15

7:00 am-12:23 pm

1 stop6h 23m

$257

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Sat 3/7

2:40 pm-10:48 pm

1 stop7h 08m

Washington, D.C. Dulles Intl

Thu 3/12

6:00 am-1:55 pm

1 stop8h 55m

$570

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Sun 3/8

2:25 pm-10:53 pm

1 stop7h 28m

Washington, D.C. Dulles Intl

Wed 3/11

6:00 am-1:55 pm

1 stop8h 55m

$609

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Mon 6/8

5:30 pm-11:29 pm

1 stop4h 59m

Washington, D.C. Dulles Intl

Wed 6/10

6:15 am-12:41 pm

1 stop7h 26m

$609

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Wed 12/31

1:28 pm-10:13 pm

1 stop7h 45m

Washington, D.C. Dulles Intl

Sun 1/4

2:21 pm-7:49 pm

1 stop6h 28m

$784

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Mon 1/5

7:21 pm-4:50 pm

3 stops44h 29m

$208

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Sun 1/11

5:00 am-1:38 pm

1 stop7h 38m

$305

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Sat 2/14

1:28 pm-11:09 pm

2 stops8h 41m

$310

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Mon 1/5

1:03 pm-7:24 pm

1 stop5h 21m

$395

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Sun 1/11

9:00 am-7:30 am

2 stops21h 30m

$435

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 December.
ProviderPrice AccuracyTrust Score*
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 Bismarck-Washington, D.C. Dulles Intl Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Bismarck-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. Expedia 90-95% 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 American Airlines can get you from Bismarck to Washington, D.C. Dulles Intl Airport in just under 5h 30m. Your travel time can differ by up to 1h 38m. 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
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.