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Dulles Intl

$194+ Cheap flights from Billings (BIL) 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — IAD
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Billings to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) 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 July 29, 2025.

Round-trip from

$388
(Hawaiian Airlines)

One-way from

$194
(Hawaiian Airlines)

Popular in

October

Cheapest in

January

Average price

$686
From Billings Logan Intl to Washington, D.C. Dulles Intl
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One-way flight from Billings Logan Intl to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 15% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Billings to Dulles Intl

Cheapest flights from Billings to Dulles Intl
Explore the most affordable flight options available from Billings to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 7/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:18 pmBIL - IAD
1 stop10h 15mHawaiian Airlines
Tue 10/287:43 amIAD - BIL
1 stop9h 17mHawaiian Airlines
Deal found 7/28$388
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 9/177:03 amBIL - IAD
1 stop7h 47mAmerican Airlines
Tue 9/236:25 amIAD - BIL
1 stop9h 04mAmerican Airlines
Deal found 7/28$389
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:18 pmBIL - IAD
2 stops12h 54mDelta
Sat 8/233:26 pmIAD - BIL
2 stops9h 46mDelta
Deal found 7/28$399
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 8/215:00 amBIL - IAD
1 stop8h 34mUnited Airlines
Sat 8/233:48 pmIAD - BIL
1 stop6h 46mUnited Airlines
Deal found 7/28$419
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:18 pmBIL - IAD
1 stop10h 15mAlaska Airlines
Tue 10/286:13 pmIAD - BIL
2 stops21h 07mAlaska Airlines
Deal found 7/28$431

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings 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 July 29, 2025.
Use the filters below to find and compare flights from Billings to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Billings

Fly to

Dulles Intl

Route

Depart

Return

Price

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Mon 9/15

7:18 pm-7:33 am

1 stop10h 15m

Washington, D.C. Dulles Intl

Tue 10/28

7:43 am-3:00 pm

1 stop9h 17m

$388

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Wed 9/17

7:03 am-4:50 pm

1 stop7h 47m

Washington, D.C. Dulles Intl

Tue 9/23

6:25 am-1:29 pm

1 stop9h 04m

$389

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Thu 8/21

6:18 pm-9:12 am

2 stops12h 54m

Washington, D.C. Dulles Intl

Sat 8/23

3:26 pm-11:12 pm

2 stops9h 46m

$399

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Thu 8/21

5:00 am-3:34 pm

1 stop8h 34m

Washington, D.C. Dulles Intl

Sat 8/23

3:48 pm-8:34 pm

1 stop6h 46m

$419

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Mon 9/15

7:18 pm-7:33 am

1 stop10h 15m

Washington, D.C. Dulles Intl

Tue 10/28

6:13 pm-1:20 pm

2 stops21h 07m

$431

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Mon 10/6

1:59 pm-12:23 am

1 stop8h 24m

$194

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Mon 10/6

6:00 am-7:45 pm

2 stops11h 45m

$200

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Mon 8/4

5:20 am-4:25 pm

2 stops9h 05m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Billings to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Billings 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 July 29, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Billings to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

    Located just 2.7 mi from the city center, Billings Logan Intl is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Billings. Booking flights from Billings Logan Intl (BIL) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 1 airline.

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

    Our cheapest airline available from Billings to Washington, D.C. Dulles Intl Airport is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $388 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $389 and $399 round-trip. Hawaiian Airlines is currently priced 31% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Billings to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Billings to Washington, D.C. Dulles Intl Airport are Hawaiian Airlines ($194), American Airlines ($200), and Delta ($361).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Billings 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 Billings to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Billings to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Billings to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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Top airline flying from Billings to Dulles Intl

Discover the top airline that operate flights from Billings 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$373Average$656FlexibilityNo cancel feeOn-time69%

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