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Washington, D.C.

$174+ Cheap flights from Billings (BIL) to Washington, D.C. (WAS)

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — WAS
Jun 12 — Jun 191
Fri 6/12
Fri 6/19
1 adult, Economy
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Cheap flight deals from Billings to Washington, D.C.

Cheapest flights from Billings to Washington, D.C.
Explore the most affordable flight options available from Billings to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.

This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:45 am
BIL
-
DCA
2 stops11h 34m
Delta
Sat 9/55:00 pm
DCA
-
BIL
1 stop7h 27m
Delta
Deal found 5/10$356
This Delta deal was found by Cheapflights users on 5/12. 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 8/156:34 pm
BIL
-
BWI
1 stop9h 46m
Delta
Tue 8/257:17 pm
BWI
-
BIL
1 stop5h 56m
Delta
Deal found 5/12$359
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:34 pm
BIL
-
IAD
2 stops12h 45m
Delta
Wed 8/123:03 pm
IAD
-
BIL
2 stops10h 10m
Delta
Deal found 5/10$365
This Delta deal was found by Cheapflights users on 5/12. 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 8/65:10 am
BIL
-
DCA
2 stops11h 33m
Delta
Wed 8/122:45 pm
DCA
-
BIL
2 stops10h 28m
Delta
Deal found 5/12$365
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:15 am
BIL
-
DCA
1 stop5h 42m
Delta
Sat 9/55:00 pm
DCA
-
BIL
1 stop7h 27m
Delta
Deal found 5/10$375
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:45 am
BIL
-
DCA
2 stops11h 34m
Delta
Fri 9/43:05 pm
DCA
-
BIL
2 stops9h 32m
Delta
Deal found 5/10$385
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:15 am
BIL
-
DCA
1 stop5h 42m
Delta
Wed 9/26:50 pm
DCA
-
BIL
1 stop5h 47m
Delta
Deal found 5/10$399
This Alaska Airlines deal was found by Cheapflights users on 5/12. 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 10/2012:05 pm
BIL
-
IAD
1 stop9h 54m
Alaska Airlines
Sat 10/249:35 am
IAD
-
BIL
1 stop11h 17m
Alaska Airlines
Deal found 5/12$401
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:15 am
BIL
-
DCA
1 stop5h 42m
Delta
Fri 9/43:05 pm
DCA
-
BIL
2 stops9h 32m
Delta
Deal found 5/10$404
This Expedia deal was found by Cheapflights users on 5/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:05 am
BIL
-
IAD
1 stop8h 41m
Alaska Airlines
Thu 9/177:00 am
IAD
-
BIL
1 stop13h 49m
Alaska Airlines
Deal found 5/11$405
This Alaska Airlines deal was found by Cheapflights users on 5/12. 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 9/247:29 pm
BIL
-
BWI
1 stop9h 01m
Alaska Airlines
Mon 9/284:34 pm
BWI
-
BIL
1 stop24h 28m
Alaska Airlines
Deal found 5/12$409
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:45 am
BIL
-
DCA
2 stops11h 34m
Delta
Fri 9/43:05 pm
DCA
-
BIL
2 stops9h 32m
Delta
Deal found 5/10$409

Find flight deals from Billings to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Washington, D.C. (WAS). 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 May 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$356
(Delta)

One-way from

$174
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$539
Provider with most accurate pricing for Billings Logan Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-Washington, D.C. (WAS) flights.
Search Deals
From Billings Logan Intl to Washington, D.C. (WAS)
Search Deals
One-way flight from Billings Logan Intl to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to Washington, D.C. 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 May 13, 2026.
Use the filters below to find and compare flights from Billings to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsWashington, D.C.

BIL - DCA

BILDCA

Billings Logan Intl

Tue 9/1

5:45 am-7:19 pm

2 stops11h 34m

Washington, D.C. Reagan-National

Sat 9/5

5:00 pm-10:27 pm

1 stop7h 27m

$356

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Thu 9/24

3:42 pm-3:34 pm

1 stop21h 52m

Baltimore/Washington

Mon 9/28

4:34 pm-3:02 pm

1 stop24h 28m

$359

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Sat 8/15

6:34 pm-6:20 am

1 stop9h 46m

Baltimore/Washington

Tue 8/25

7:17 pm-11:13 pm

1 stop5h 56m

$359

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Sun 8/16

6:34 pm-6:20 am

1 stop9h 46m

Baltimore/Washington

Mon 8/24

12:30 pm-10:35 pm

2 stops12h 05m

$364

BillingsWashington, D.C.

BIL - DCA

BILDCA

Billings Logan Intl

Thu 8/6

5:10 am-6:43 pm

2 stops11h 33m

Washington, D.C. Reagan-National

Wed 8/12

1:42 pm-11:13 pm

2 stops11h 31m

$365

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Sat 10/24

2:29 pm-11:36 pm

1 stop7h 07m

Baltimore/Washington

Tue 10/27

4:10 pm-8:51 pm

1 stop6h 41m

$449

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Thu 9/24

6:25 pm-6:03 am

1 stop9h 38m

Baltimore/Washington

Mon 9/28

8:10 am-7:37 pm

2 stops13h 27m

$452

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Wed 9/2

7:00 am-3:12 pm

1 stop6h 12m

Baltimore/Washington

Wed 9/2

4:18 pm-9:00 pm

1 stop6h 42m

$458

BillingsWashington, D.C.

BIL - DCA

BILDCA

Billings Logan Intl

Sun 8/16

6:26 am-8:38 pm

2 stops12h 12m

Washington, D.C. Reagan-National

Mon 8/24

6:59 pm-11:13 pm

1 stop6h 14m

$464

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Thu 9/24

7:29 pm-5:40 am

1 stop8h 11m

Washington, D.C. Dulles Intl

Mon 9/28

7:29 pm-11:29 pm

2 stops30h 00m

$475

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 35 resultsSorted by cheapest first
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Compare providers for flights from Billings to Washington, D.C.

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 Billings to Washington, D.C. in May.
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 Billings-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-Washington, D.C. 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 Billings-Washington, D.C. 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 Billings to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

Cheapflights Insights

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

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

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated May 13, 2026.
Read through reviews of airlines operating flights from Billings to Washington, D.C., 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
9,706 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

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
9,706 reviews
United Airlines
7.4
Good
9,706 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

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 Billings to Washington, D.C.. 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.?

    Most people fly from Billings Logan Intl (BIL) if they book a flight from Billings to Washington, D.C.. On average, Billings Logan Intl has 0 outbound flights to Washington, D.C. per day from 3 airlines. Billings Logan Intl is conveniently located just 2.7 mi from Billings’s city center.

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

    A quick flight from Billings to Washington, D.C. can take about 6h 35m. Delta provides one of the quickest options available for as low as $489. There are 1643 mi between Billings and Washington, D.C.. This flight may include one or multiple stops.

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

    According to our current data, American Airlines ($328), United Airlines ($350), and Delta ($398) offers the cheapest pricing from Billings to Washington, D.C.. You may be able to fly from Billings to Washington, D.C. for 41% less than the average price by searching for these airlines.

  • What are the most popular routes from Billings to Washington, D.C.?

    Most travelers choose Billings Logan Intl - Washington, D.C. Dulles Intl, Billings Logan Intl - Washington, D.C. Reagan-National or Billings Logan Intl - Baltimore/Washington when deciding on the best route from Billings to Washington, D.C..

  • Can I find deals for flights from Billings to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Billings to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to Washington, D.C.?

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

  • Can I find deals for business class flights from Billings to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Billings to Washington, D.C. 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Silver Spring
Hanover
Laurel
Woodbridge
Waldorf
Largo
Clinton
Hunt Valley
Cordova
Reston

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Billings to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Dulles Intl flights
Billings to Dulles Intl flights
Missoula to Reagan-National flights

Top 3 airlines flying from Billings to Washington, D.C.

Discover the top 3 airlines that operate flights from Billings to Washington, D.C.. 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 May 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$328Average$595FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$350Average$556FlexibilityNo cancel feeOn-time69%
DeltaCheapest$398Average$585FlexibilityNo cancel feeOn-timeN/A

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