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Billings

$176+ Cheap flights from Dulles Intl (IAD) to Billings (BIL)

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BIL
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
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Cheap flight deals from Dulles Intl to Billings

Cheapest flights from Dulles Intl to Billings
Explore the most affordable flight options available from Dulles Intl to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This Alaska Airlines deal was found by Cheapflights users on 4/20. 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.
Tue 6/25:35 pm
IAD
-
BIL
1 stop21h 46m
Alaska Airlines
Tue 6/97:21 pm
BIL
-
IAD
1 stop10h 13m
Alaska Airlines
Deal found 4/20$351
This Delta deal was found by Cheapflights users on 4/23. 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.
Wed 6/36:58 pm
IAD
-
BIL
1 stop6h 16m
Delta
Wed 6/106:43 pm
BIL
-
IAD
2 stops13h 37m
Delta
Deal found 4/23$356
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 6/211:15 am
IAD
-
BIL
2 stops13h 37m
Delta
Tue 6/96:43 pm
BIL
-
IAD
2 stops13h 37m
Delta
Deal found 4/22$361
This Delta deal was found by Cheapflights users on 4/21. 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.
Wed 8/266:40 pm
IAD
-
BIL
1 stop5h 57m
Delta
Sun 8/306:15 am
BIL
-
IAD
2 stops8h 26m
Delta
Deal found 4/21$365
This Delta deal was found by Cheapflights users on 4/21. 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 5/306:08 am
IAD
-
BIL
2 stops13h 31m
Delta
Sat 6/66:19 pm
BIL
-
IAD
2 stops13h 02m
Delta
Deal found 4/21$386
This Delta deal was found by Cheapflights users on 4/23. 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 8/146:40 pm
IAD
-
BIL
1 stop5h 57m
Delta
Tue 8/2511:35 am
BIL
-
IAD
2 stops10h 35m
Delta
Deal found 4/23$393
This American Airlines deal was found by Cheapflights users on 4/22. 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 8/296:10 am
IAD
-
BIL
1 stop8h 31m
American Airlines
Wed 9/97:00 am
BIL
-
IAD
1 stop8h 54m
American Airlines
Deal found 4/22$394
This American Airlines deal was found by Cheapflights users on 4/23. 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 8/292:53 pm
IAD
-
BIL
1 stop9h 51m
American Airlines
Sat 9/512:28 pm
BIL
-
IAD
2 stops9h 19m
American Airlines
Deal found 4/23$399

Find flight deals from Dulles Intl to Billings

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Billings (BIL). 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 April 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$351
(Alaska Airlines)

One-way from

$176
(United Airlines)

Popular in

February

Cheapest in

April

Average price

$442
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Billings Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Billings Logan Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Billings Logan Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Billings Logan Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Billings 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 April 23, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Billings that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Tue 6/2

5:35 pm-1:21 pm

1 stop21h 46m

Billings Logan Intl

Tue 6/9

7:21 pm-7:34 am

1 stop10h 13m

$351

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Tue 6/2

11:15 am-10:52 pm

2 stops13h 37m

Billings Logan Intl

Tue 6/9

6:24 am-6:41 pm

2 stops10h 17m

$361
Quickest round-trip

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 9/2

6:15 am-11:02 am

1 stop6h 47m

Billings Logan Intl

Thu 9/10

4:10 pm-12:40 am

1 stop6h 30m

$389

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Fri 8/14

6:30 am-1:20 pm

1 stop8h 50m

Billings Logan Intl

Tue 8/25

2:25 pm-12:40 am

1 stop8h 15m

$460

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Mon 9/21

5:54 pm-11:38 am

1 stop19h 44m

Billings Logan Intl

Fri 9/25

7:29 pm-5:40 am

1 stop8h 11m

$469

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 8/29

5:44 pm-3:02 pm

2 stops23h 18m

Billings Logan Intl

Wed 9/9

7:29 pm-5:40 am

1 stop8h 11m

$491

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 7/4

6:15 am-12:45 pm

1 stop8h 30m

Billings Logan Intl

Tue 7/7

12:35 pm-12:10 am

2 stops9h 35m

$496

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 7/4

6:30 am-1:22 pm

1 stop8h 52m

Billings Logan Intl

Tue 7/7

4:10 pm-12:45 am

1 stop6h 35m

$496
Cheapest one-way

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Tue 9/15

2:46 pm-10:41 pm

1 stop9h 55m

$176

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 6/3

6:30 am-1:22 pm

1 stop8h 52m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Dulles Intl to Billings

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 Billings in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Billings 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-Billings 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 Washington, D.C. Dulles Intl Airport-Billings 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 Billings

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

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Billings

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Billings?

Reviews of airlines servicing Billings

Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated April 23, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Billings, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,637 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,637 reviews
United Airlines
7.4
Good
9,637 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Billings. 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 Billings from 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 Billings from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Billings Logan Intl (BIL) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.

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

    Airlines like Alaska Airlines, Delta, and United Airlines fly from Washington, D.C. Dulles Intl Airport to Billings in about 6h 47m. The time it takes to get you to your destination can typically vary by up to 14h 59m. The distance from Washington, D.C. Dulles Intl Airport to Billings is about 1643 mi. This flight may include one or multiple stops.

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

    Currently priced at $388, United Airlines will fly you from Washington, D.C. Dulles Intl Airport to Billings and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is priced at 26% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Billings 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Dulles Intl to Billings

Discover the top airline that operate flights from Dulles Intl to Billings. 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 April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$388Average$491FlexibilityNo cancel feeOn-time69%

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