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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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BIL
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Find 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 October 27, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 11/137:43 amIAD - BIL
1 stop9h 17mAlaska Airlines
Mon 11/172:00 pmBIL - IAD
1 stop14h 23mAlaska Airlines
Deal found 10/26$444
This Delta deal was found by Cheapflights users on 10/25. 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.
Sun 11/236:59 pmIAD - BIL
1 stop6h 25mDelta
Fri 11/286:25 amBIL - IAD
1 stop5h 03mDelta
Deal found 10/25$504
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/253:59 pmIAD - BIL
1 stop7h 19mUnited Airlines
Tue 12/27:00 amBIL - IAD
1 stop6h 01mUnited Airlines
Deal found 10/26$543
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Sun 11/25:04 amIAD - BIL
1 stop9h 26mAmerican Airlines
Sun 11/96:00 amBIL - IAD
1 stop8h 11mAmerican Airlines
Deal found 10/26$566
This Delta deal was found by Cheapflights users on 10/26. 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.
Sun 11/25:15 amIAD - BIL
1 stop6h 49mDelta
Sun 11/95:18 amBIL - IAD
2 stops11h 01mDelta
Deal found 10/26$581
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/412:40 pmIAD - BIL
1 stop6h 36mUnited Airlines
Wed 11/52:31 pmBIL - IAD
1 stop6h 44mUnited Airlines
Deal found 10/27$643
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 11/245:18 pmIAD - BIL
1 stop7h 31mUnited Airlines
Mon 12/17:00 amBIL - IAD
1 stop14h 15mUnited Airlines
Deal found 10/27$660
This Delta deal was found by Cheapflights users on 10/26. 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 11/135:03 pmIAD - BIL
2 stops9h 07mDelta
Mon 11/1711:42 amBIL - IAD
2 stops10h 34mDelta
Deal found 10/26$664

Cheap 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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$444
(Alaska Airlines)

One-way from

$205
(United Airlines)

Popular in

November

Cheapest in

April

Average price

$469
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. 11% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 27, 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

Thu 11/13

7:43 am-3:00 pm

1 stop9h 17m

Billings Logan Intl

Mon 11/17

2:00 pm-6:23 am

1 stop14h 23m

$444

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sun 11/23

6:59 pm-11:24 pm

1 stop6h 25m

Billings Logan Intl

Fri 11/28

6:25 am-1:28 pm

1 stop5h 03m

$504

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Fri 3/27

10:17 pm-8:54 pm

1 stop24h 37m

Billings Logan Intl

Tue 3/31

5:00 am-3:50 pm

1 stop8h 50m

$625

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Mon 11/24

5:18 pm-10:49 pm

1 stop7h 31m

Billings Logan Intl

Mon 12/1

7:00 am-5:18 am

1 stop20h 18m

$660

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Thu 11/13

5:03 pm-12:10 am

2 stops9h 07m

Billings Logan Intl

Mon 11/17

11:42 am-12:16 am

2 stops10h 34m

$664

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 1/24

8:15 am-3:20 pm

1 stop9h 05m

$205

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 11/15

8:36 pm-11:10 am

3 stops40h 34m

$229

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 11/12

7:43 am-3:00 pm

1 stop9h 17m

$240

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 11/12

7:55 am-9:18 pm

2 stops15h 23m

$246

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 11/15

7:43 am-3:00 pm

1 stop9h 17m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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 October.
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 October 27, 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 October 27, 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
8,997 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,997 reviews
United Airlines
7.4
Good
8,997 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 25m. The time it takes to get you to your destination can typically vary by up to 18h 12m. 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. United Airlines is priced at 18% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $205 on United Airlines. Other airlines that offer cheap prices include Alaska Airlines from $240 and American Airlines from $246 one-way.

  • 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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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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$434Average$503FlexibilityNo cancel feeOn-time69%

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