What are the cheapest airlines flying from Bismarck to Washington, D.C. Dulles Intl Airport round-trip?

According to our current data, Delta ($269), American Airlines ($279), and United Airlines ($358) 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.

What is the cheapest month to book a flight from Bismarck to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Bismarck to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Bismarck to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Bismarck to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Bismarck to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 day to fly round-trip from Bismarck to Washington, D.C. Dulles Intl Airport?

Flights from Bismarck to Washington, D.C. Dulles Intl Airport are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Dulles Intl Airport.

What is the cheapest month to fly from Bismarck to Washington, D.C. Dulles Intl Airport?

Our data shows that March tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Bismarck. Users have commonly found prices around $486 for the month, but tickets can be as low as $192. Due to multiple factors, prepare for potentially higher prices in October.

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

It’s typically best to fly out from Bismarck to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 32% on the flight price compared to flying at noon, which is usually more expensive.

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.

$269+ Flights from Bismarck to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

Round-trip from	$269 (Delta)
Popular in	June
Cheapest in	October
Average price	$480

From Bismarck to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($103 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 13% potential price decrease ($52 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find 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 July 2, 2025.

Tue 7/295:00 amBIS - IAD

1 stop4h 54mDelta

Tue 8/56:20 amIAD - BIS

1 stop5h 17mDelta

Deal found 6/30

$269

Tue 9/96:19 amBIS - IAD

2 stops11h 32mAmerican Airlines

Sat 9/1312:48 pmIAD - BIS

2 stops10h 38mAmerican Airlines

Deal found 6/30

$279

Tue 7/159:20 amBIS - IAD

1 stop6h 24mUnited Airlines

Sat 7/196:30 amIAD - BIS

1 stop7h 30mUnited Airlines

Deal found 6/30

$358

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 July 2, 2025.

Tue 7/295:00 amBIS - IAD

1 stop4h 54mDelta

Tue 8/56:20 amIAD - BIS

1 stop5h 17mDelta

Deal found 6/30

$269

Tue 9/96:19 amBIS - IAD

2 stops11h 32mAmerican Airlines

Sat 9/1312:48 pmIAD - BIS

2 stops10h 38mAmerican Airlines

Deal found 6/30

$279

Tue 7/159:20 amBIS - IAD

1 stop6h 24mUnited Airlines

Sat 7/196:30 amIAD - BIS

1 stop7h 30mUnited Airlines

Deal found 6/30

$358

Last-minute flights from Bismarck to Dulles Intl
Discover last-minute flight deals from Bismarck to Dulles Intl. Data last updated July 2, 2025 and is based on user searches.

Tue 7/159:20 amBIS - IAD

1 stop6h 24mUnited Airlines

Sat 7/196:30 amIAD - BIS

1 stop7h 30mUnited Airlines

Deal found 6/30

$358

Thu 7/173:00 pmBIS - IAD

1 stop6h 46mAmerican Airlines

Tue 7/226:27 amIAD - BIS

1 stop8h 58mAmerican Airlines

Deal found 7/2

$319

Tue 7/295:00 amBIS - IAD

1 stop4h 54mDelta

Tue 8/56:20 amIAD - BIS

1 stop5h 17mDelta

Deal found 7/2

$269

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 July 2, 2025.

Thu 7/171:17 pmBIS - IAD

2 stops10h 17mDelta

Deal found 7/2

$278

Thu 7/176:00 amBIS - IAD

1 stop6h 36mUnited Airlines

Deal found 6/30

$333

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

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Tue 7/29

5:00 am-10:54 am

1 stop4h 54m

Washington, D.C. Dulles Intl

Tue 8/5

6:20 am-10:37 am

1 stop5h 17m

$269

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Tue 9/9

6:19 am-6:51 pm

2 stops11h 32m

Washington, D.C. Dulles Intl

Sat 9/13

12:48 pm-10:26 pm

2 stops10h 38m

$279

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Tue 7/15

9:20 am-4:44 pm

1 stop6h 24m

Washington, D.C. Dulles Intl

Sat 7/19

6:30 am-1:00 pm

1 stop7h 30m

$358

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Thu 7/17

1:17 pm-12:34 am

2 stops10h 17m

$278

BismarckWashington, D.C.

BIS - IAD

BISIAD

Bismarck

Thu 7/17

6:00 am-1:36 pm

1 stop6h 36m

$333

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines 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

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,983 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.
What are the cheapest airlines flying from Bismarck to Washington, D.C. Dulles Intl Airport round-trip?
According to our current data, Delta ($269), American Airlines ($279), and United Airlines ($358) 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.
What is the cheapest month to book a flight from Bismarck to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Bismarck to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Bismarck to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Arlington

Woodbridge

Alexandria

Tysons

Silver Spring

Fredericksburg

Linthicum Heights

Gaithersburg

Fairfax

Easton

Towson

Waldorf

Laurel

Falls Church

Rockville

Springfield

National Harbor

Manassas

Dundalk

Bowie

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Bismarck to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$218	Average$348	FlexibilityNo cancel fee	On-timeN/A

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.

$269+ 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 7/29. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Bismarck to Dulles Intl

Round-trip from

Popular in

Cheapest in

Average price

Find 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 July 2, 2025.

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 July 2, 2025.

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.

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

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?

What are the cheapest airlines flying 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?

What is the cheapest month to book a flight from Bismarck to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Bismarck?

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.

Alternative routes for Bismarck to Dulles Intl

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

Top airline flying from Bismarck to Dulles Intl

100% Free

Book with Flexibility

Travel Smart

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 July 2, 2025.