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

American Airlines and Delta can get you from Bismarck to Washington, D.C. Dulles Intl Airport in just under 5h 21m. Your travel time can differ by up to 2h 55m. Airlines will cover a distance of 1291 mi. This flight may include one or multiple stops.

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. Delta is priced at 39% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from BIS to IAD?

When flying from Bismarck to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

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.

$319+ Cheap Flights from Bismarck to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Bismarck to Dulles Intl

Cheapest

Best

Last-minute

One-way

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 September 9, 2026.

Fri 10/302:07 pm -

1 stop8h 16m

Tue 11/37:18 am -

1 stop7h 10m

Deal found 9/4

$383

Thu 10/295:00 am -

1 stop5h 21m

Mon 11/22:28 pm -

1 stop6h 27m

Deal found 9/8

$403

Fri 10/305:39 pm -

1 stop4h 47m

Tue 11/35:13 pm -

2 stops7h 12m

Deal found 9/6

$408

Mon 9/215:00 am -

1 stop4h 53m

Sat 10/36:10 am -

1 stop7h 27m

Deal found 9/7

$443

Wed 9/231:17 pm -

2 stops10h 24m

Tue 9/296:00 am -

2 stops7h 37m

Deal found 9/7

$453

Thu 10/292:07 pm -

1 stop8h 16m

Mon 11/22:42 pm -

1 stop8h 04m

Deal found 9/4

$463

Best flights from Bismarck to Dulles Intl
Discover carefully curated flight deals from Bismarck to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.

Fri 10/302:07 pm -

1 stop8h 16m

Tue 11/37:18 am -

1 stop7h 10m

Deal found 9/4

$383

Thu 10/295:00 am -

1 stop5h 21m

Mon 11/22:28 pm -

1 stop6h 27m

Deal found 9/8

$403

Fri 10/303:18 pm -

2 stops8h 24m

Tue 11/35:13 pm -

2 stops7h 12m

Deal found 9/7

$413

Wed 9/235:00 am -

1 stop4h 53m

Tue 9/296:47 pm -

1 stop5h 24m

Deal found 9/8

$443

Mon 9/215:00 am -

1 stop4h 53m

Sat 10/36:10 am -

1 stop7h 27m

Deal found 9/6

$443

Last-minute flights from Bismarck to Dulles Intl
Discover last-minute flight deals from Bismarck to Dulles Intl. Data last updated September 9, 2026 and is based on user searches.

Mon 9/215:00 am -

1 stop4h 53m

Sat 10/36:10 am -

1 stop7h 27m

Deal found 9/7

$443

Wed 9/231:17 pm -

2 stops10h 24m

Tue 9/296:00 am -

2 stops7h 37m

Deal found 9/7

$453

Thu 10/295:00 am -

1 stop5h 21m

Mon 11/22:28 pm -

1 stop6h 27m

Deal found 9/8

$403

Thu 10/292:07 pm -

1 stop8h 16m

Mon 11/22:42 pm -

1 stop8h 04m

Deal found 9/4

$463

Fri 10/302:07 pm -

1 stop8h 16m

Tue 11/37:18 am -

1 stop7h 10m

Deal found 9/4

$383

Fri 10/305:39 pm -

1 stop4h 47m

Tue 11/35:13 pm -

2 stops7h 12m

Deal found 9/6

$408

Find flight deals from Bismarck to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$383 (American Airlines)
One-way from	$319 (KAYAK)
Popular in	May
Cheapest in	December
Average price	$633

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. 21% potential increase in price ($146 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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 Bismarck - IAD Washington, D.C. Dulles Intl

BISIAD

Bismarck

Thu 10/8

5:39 pm-11:26 pm

1 stop4h 47m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$319

BismarckWashington, D.C.

BIS Bismarck - IAD Washington, D.C. Dulles Intl

BISIAD

Bismarck

Fri 10/30

2:07 pm-11:23 pm

1 stop8h 16m

Washington, D.C. Dulles Intl

Tue 11/3

7:18 am-1:28 pm

1 stop7h 10m

$383

BismarckWashington, D.C.

BIS Bismarck - IAD Washington, D.C. Dulles Intl

BISIAD

Bismarck

Thu 10/29

5:00 am-11:21 am

1 stop5h 21m

Washington, D.C. Dulles Intl

Mon 11/2

2:28 pm-7:55 pm

1 stop6h 27m

$403

BismarckWashington, D.C.

BIS Bismarck - IAD Washington, D.C. Dulles Intl

BISIAD

Bismarck

Fri 10/30

3:18 pm-12:42 am

2 stops8h 24m

Washington, D.C. Dulles Intl

Tue 11/3

5:13 pm-11:25 pm

2 stops7h 12m

$413

BismarckWashington, D.C.

BIS Bismarck - IAD Washington, D.C. Dulles Intl

BISIAD

Bismarck

Wed 9/23

5:00 am-10:53 am

1 stop4h 53m

Washington, D.C. Dulles Intl

Tue 9/29

6:47 pm-11:11 pm

1 stop5h 24m

$443

BismarckWashington, D.C.

BIS Bismarck - IAD Washington, D.C. Dulles Intl

BISIAD

Bismarck

Mon 9/21

5:00 am-10:53 am

1 stop4h 53m

Washington, D.C. Dulles Intl

Sat 10/3

6:10 am-12:37 pm

1 stop7h 27m

$443

BismarckWashington, D.C.

BIS Bismarck - IAD Washington, D.C. Dulles Intl

BISIAD

Bismarck

Mon 9/14

8:39 pm-2:09 pm

2 stops40h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$705

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Sorted by cheapest first

Compare providers for flights from Bismarck to Dulles Intl

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 September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust 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.

BIS-IAD

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

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

7.8

Good

8,554 reviews

Reviews

1 / 20

8.0

Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Delta

7.8

Good

8,554 reviews

Delta

7.8

Good

8,554 reviews

Reviews

1 / 20

8.0

Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Related info for your journey

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?
American Airlines and Delta can get you from Bismarck to Washington, D.C. Dulles Intl Airport in just under 5h 21m. Your travel time can differ by up to 2h 55m. Airlines will cover a distance of 1291 mi. This flight may include one or multiple stops.
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. Delta is priced at 39% lower than the current average price of a flight leaving 3 months from now.
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.

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Top airline flying from Bismarck to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$317	Average$482	FlexibilityNo cancel fee	On-timeN/A

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$319+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Bismarck to Dulles Intl with Cheapflights

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Cheap flight deals from Bismarck to Dulles Intl

Cheapest flights from Bismarck to Dulles IntlExplore 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 September 9, 2026.

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 September 9, 2026.

Best flights from Bismarck to Dulles IntlDiscover carefully curated flight deals from Bismarck to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.

Discover carefully curated flight deals from Bismarck to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.

Last-minute flights from Bismarck to Dulles IntlDiscover last-minute flight deals from Bismarck to Dulles Intl. Data last updated September 9, 2026 and is based on user searches.

Discover last-minute flight deals from Bismarck to Dulles Intl. Data last updated September 9, 2026 and is based on user searches.

One-way flights from Bismarck to Dulles IntlSearch for one-way flight options from Bismarck to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.

Search for one-way flight options from Bismarck to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.

Find flight deals from Bismarck to Dulles Intl

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Cheapflights Fare Finder

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

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 September.

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.

Reviews of airlines servicing Dulles Intl

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.

Related info for your journey

What airport do you fly from for flights from Bismarck to Washington, D.C. Dulles Intl?

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Bismarck to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.

Search flights from Bismarck to Dulles Intl by cabin class

Find flights from Bismarck to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Bismarck and Dulles Intl flights

Browse other Bismarck and Dulles Intl flight options. Last updated on September 9, 2026.

Other flights from Bismarck

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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 September 9, 2026.

Best flights from Bismarck to Dulles Intl
Discover carefully curated flight deals from Bismarck to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.

Last-minute flights from Bismarck to Dulles Intl
Discover last-minute flight deals from Bismarck to Dulles Intl. Data last updated September 9, 2026 and is based on user searches.

One-way flights from Bismarck to Dulles Intl
Search for one-way flight options from Bismarck to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.