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Billings

$205+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BIL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/316:20 amIAD - BIL
1 stop9h 04mUnited Airlines
Tue 1/62:45 pmBIL - IAD
1 stop6h 37mUnited Airlines
Deal found 12/10$409
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/316:20 amIAD - BIL
1 stop9h 04mUnited Airlines
Mon 1/52:40 pmBIL - IAD
1 stop6h 43mUnited Airlines
Deal found 12/10$486
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Tue 12/306:20 amIAD - BIL
1 stop9h 04mUnited Airlines
Mon 1/55:50 pmBIL - IAD
1 stop17h 22mUnited Airlines
Deal found 12/9$723
This United Airlines deal was found by Cheapflights users on 12/8. 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.
Wed 12/244:00 pmIAD - BIL
1 stop7h 24mUnited Airlines
Sun 12/282:40 pmBIL - IAD
2 stops19h 15mUnited Airlines
Deal found 12/8$782

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$344
(Alaska Airlines)

One-way from

$205
(United Airlines)

Popular in

December

Cheapest in

July

Average price

$745
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Billings Logan Intl flight deals.
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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. 5% potential increase in price ($33 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 December 2025
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 December 12, 2025.
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

Dulles Intl

Fly to

Billings

Route

Depart

Return

Price

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Tue 1/6

6:43 pm-11:36 pm

1 stop30h 53m

Billings Logan Intl

Tue 1/13

3:35 pm-4:26 pm

1 stop22h 51m

$344

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 1/10

6:04 pm-11:36 pm

1 stop31h 32m

Billings Logan Intl

Mon 1/12

2:02 pm-4:26 pm

1 stop24h 24m

$364

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 1/10

2:24 pm-9:23 pm

1 stop8h 59m

Billings Logan Intl

Sat 1/17

2:45 pm-11:22 pm

1 stop6h 37m

$373

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 1/10

11:34 am-10:33 pm

2 stops12h 59m

Billings Logan Intl

Sat 1/17

6:54 am-11:42 pm

2 stops14h 48m

$383

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 1/7

2:20 pm-7:25 pm

1 stop7h 05m

Billings Logan Intl

Wed 1/14

6:22 am-1:38 pm

1 stop5h 16m

$389

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 12/31

6:20 am-1:24 pm

1 stop9h 04m

Billings Logan Intl

Tue 1/6

2:45 pm-11:22 pm

1 stop6h 37m

$409

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 1/7

8:15 am-1:24 pm

1 stop7h 09m

Billings Logan Intl

Sat 1/10

2:45 pm-11:22 pm

1 stop6h 37m

$409

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 2/4

2:31 pm-9:23 pm

1 stop8h 52m

Billings Logan Intl

Sun 2/8

2:45 pm-11:22 pm

1 stop6h 37m

$409

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 1/7

6:04 pm-2:55 pm

1 stop22h 51m

Billings Logan Intl

Wed 1/14

7:00 am-5:04 pm

2 stops32h 04m

$411

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 1/7

11:34 am-10:33 pm

2 stops12h 59m

Billings Logan Intl

Wed 1/14

6:54 am-11:12 pm

2 stops14h 18m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 15 results
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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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Billings flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Find hourly flight availability from Dulles Intl to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Billings, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 17% versus a flight in the evening.

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 December 12, 2025.
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
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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, United Airlines, and American Airlines fly from Washington, D.C. Dulles Intl Airport to Billings in about 8h 59m. The time it takes to get you to your destination can typically vary by up to 21h 54m. 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 $434, 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.

  • 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.

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Alternative routes for Dulles Intl to Billings

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$434Average$502FlexibilityNo cancel feeOn-time69%

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