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Cheap flights from Billings to Washington, D.C. from $127

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Billings to Washington, D.C. departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Billings to Washington, D.C. (BIL-WAS)

Cheap round-trip flights

Logo
10:02 am - 4:30 amBIL-BWI
16h 28m1 stop
Logo
12:12 pm - 9:24 amBWI-BIL
23h 12m2 stops
$341
Find Deal
Mon, Oct 6 - Thu, Oct 9
American Airlines Logo
12:19 pm - 11:59 pmBIL-DCA
9h 40m1 stop
American Airlines Logo
6:59 am - 11:50 amDCA-BIL
6h 51m1 stop
$372American Airlines
Find Deal
Wed, Oct 1 - Mon, Oct 6
Alaska Airlines Logo
1:59 pm - 12:23 amBIL-IAD
8h 24m1 stop
Alaska Airlines Logo
8:53 am - 6:35 pmIAD-BIL
11h 42m1 stop
$408Alaska Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15
United Airlines Logo
10:45 am - 9:21 pmBIL-IAD
8h 36m1 stop
United Airlines Logo
3:59 pm - 10:49 pmIAD-BIL
8h 50m1 stop
$409United Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
Delta Logo
5:25 am - 8:42 pmBIL-DCA
13h 17m2 stops
Delta Logo
3:05 pm - 11:18 pmDCA-BIL
10h 13m2 stops
$419Delta
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Wed, Oct 1 - Mon, Oct 6
United Airlines Logo
2:30 pm - 11:22 pmBIL-IAD
6h 52m1 stop
United Airlines Logo
6:30 am - 11:16 amIAD-BIL
6h 46m1 stop
$420United Airlines
Find Deal
Mon, Oct 6 - Thu, Oct 9
Delta Logo
6:25 am - 1:50 pmBIL-BWI
5h 25m1 stop
Delta Logo
6:00 am - 5:16 pmBWI-BIL
13h 16m2 stops
$421Delta
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Fri, Oct 31 - Tue, Nov 4
Alaska Airlines Logo
2:00 pm - 6:16 pmBIL-BWI
26h 16m1 stop
Alaska Airlines Logo
7:38 am - 3:00 pmBWI-BIL
9h 22m1 stop
$456Alaska Airlines
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Fri, Oct 31 - Tue, Nov 4
Hawaiian Airlines Logo
6:00 am - 4:49 pmBIL-DCA
8h 49m1 stop
Hawaiian Airlines Logo
8:00 am - 3:04 pmDCA-BIL
9h 04m1 stop
$690Hawaiian Airlines
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Sun, Sep 28 - Sat, Oct 4
Hawaiian Airlines Logo
6:00 am - 4:49 pmBIL-DCA
8h 49m1 stop
Hawaiian Airlines Logo
8:00 am - 3:04 pmDCA-BIL
9h 04m1 stop
$782Hawaiian Airlines
Find Deal
Sun, Sep 28 - Sat, Oct 4

American Airlines flights from Billings to Washington, D.C.

Our best American Airlines deals on Billings to Washington, D.C. flight tickets
American Airlines
Oct 1
BIL12:19 pmBillings Logan Intl
9h 40m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
Oct 6
DCA6:59 amWashington, D.C. Reagan-National
6h 51m
1 stop
BIL11:50 amBillings Logan Intl
$372
Find similar
American Airlines
Oct 8
BIL12:20 pmBillings Logan Intl
5h 56m
1 stop
DCA8:16 pmWashington, D.C. Reagan-National
Oct 15
DCA6:59 amWashington, D.C. Reagan-National
6h 51m
1 stop
BIL11:50 amBillings Logan Intl
$409
Find similar
American Airlines
Oct 8
BIL12:20 pmBillings Logan Intl
8h 46m
1 stop
DCA11:06 pmWashington, D.C. Reagan-National
Oct 15
DCA5:00 amWashington, D.C. Reagan-National
10h 22m
2 stops
BIL1:22 pmBillings Logan Intl
$414
Find similar

Delta flights from Billings to Washington, D.C.

Our best Delta deals on Billings to Washington, D.C. flight tickets
Delta
Oct 1
BIL5:25 amBillings Logan Intl
13h 17m
2 stops
DCA8:42 pmWashington, D.C. Reagan-National
Oct 6
DCA3:05 pmWashington, D.C. Reagan-National
10h 13m
2 stops
BIL11:18 pmBillings Logan Intl
$419
Find similar
Delta
Oct 31
BIL6:25 amBillings Logan Intl
5h 25m
1 stop
BWI1:50 pmBaltimore/Washington
Nov 4
BWI6:00 amBaltimore/Washington
13h 16m
2 stops
BIL5:16 pmBillings Logan Intl
$421
Find similar
Delta
Oct 31
BIL6:25 amBillings Logan Intl
5h 25m
1 stop
BWI1:50 pmBaltimore/Washington
Nov 4
BWI5:39 pmBaltimore/Washington
7h 39m
2 stops
BIL11:18 pmBillings Logan Intl
$426
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 10, 2025.
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

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Mon 10/6

10:02 am-4:30 am

1 stop16h 28m

Baltimore/Washington

Thu 10/9

12:12 pm-9:24 am

2 stops23h 12m

$341

BillingsWashington, D.C.

BIL - DCA

BILDCA

Billings Logan Intl

Wed 10/1

12:19 pm-11:59 pm

1 stop9h 40m

Washington, D.C. Reagan-National

Mon 10/6

6:59 am-11:50 am

1 stop6h 51m

$372

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Wed 10/8

1:59 pm-12:23 am

1 stop8h 24m

Washington, D.C. Dulles Intl

Wed 10/15

8:53 am-6:35 pm

1 stop11h 42m

$408

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Thu 11/20

10:45 am-9:21 pm

1 stop8h 36m

Washington, D.C. Dulles Intl

Mon 11/24

3:59 pm-10:49 pm

1 stop8h 50m

$409

BillingsWashington, D.C.

BIL - DCA

BILDCA

Billings Logan Intl

Wed 10/1

5:25 am-8:42 pm

2 stops13h 17m

Washington, D.C. Reagan-National

Mon 10/6

3:05 pm-11:18 pm

2 stops10h 13m

$419

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Mon 10/6

2:30 pm-11:22 pm

1 stop6h 52m

Washington, D.C. Dulles Intl

Thu 10/9

6:30 am-11:16 am

1 stop6h 46m

$420

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Fri 10/31

6:25 am-1:50 pm

1 stop5h 25m

Baltimore/Washington

Tue 11/4

6:00 am-5:16 pm

2 stops13h 16m

$421

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Fri 10/31

2:00 pm-6:16 pm

1 stop26h 16m

Baltimore/Washington

Tue 11/4

7:38 am-3:00 pm

1 stop9h 22m

$456

BillingsWashington, D.C.

BIL - DCA

BILDCA

Billings Logan Intl

Sun 9/28

6:00 am-4:49 pm

1 stop8h 49m

Washington, D.C. Reagan-National

Sat 10/4

8:00 am-3:04 pm

1 stop9h 04m

$690

BillingsWashington, D.C.

BIL - DCA

BILDCA

Billings Logan Intl

Sun 9/28

6:00 am-4:49 pm

1 stop8h 49m

Washington, D.C. Reagan-National

Sat 10/4

8:00 am-3:04 pm

1 stop9h 04m

$782

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Billings to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Billings and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of February is, on average, the cheapest month to fly to Washington, D.C. from Billings, with most prices found around $394. If you’re not able to fly to Washington, D.C. in February, then April is your next best option. Flight prices from Billings to Washington, D.C. during April average around $430.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Billings is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $507. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Billings to Washington, D.C. for around $718.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At noon is the cheapest time of day to fly from Billings to Washington, D.C. when you can find flight prices for as low as $542. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $678. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Billings to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Billings to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Billings to Washington, D.C. (BIL to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Billings to Washington, D.C.

Direct flights

None
There are no direct flights from Billings to Washington, D.C.. There are no popular flight routes from Billings to Washington, D.C..
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  • How far is Billings Logan Intl to Washington, D.C. by plane?

    Washington, D.C. is 1662.3 mi away from Billings Logan Intl. A reasonable flight in good conditions will take 5h 12m.

  • When did momondo last update prices for flights from Billings Logan Intl Airport to Washington, D.C.?

    Prices for flights from Billings Logan Intl Airport to Washington, D.C. are updated daily.

  • How many operators does momondo search for flights from Billings Logan Intl Airport to Washington, D.C.?

  • How old do you have to be to fly from Billings Logan Intl Airport to Washington, D.C.?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Billings Logan Intl Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Billings to Washington, D.C.?

Best airlines flying from Billings to Washington, D.C.

Compare and see reviews for airlines that fly from Billings to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $373Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
American AirlinesPriceFrom $388Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $388Free CancellationRating
7.9
7,963 reviews
Search Delta flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Glen Burnie
Springfield
Linthicum Heights

Why use momondo?

Why should I use momondo to find a flight deal from Billings to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Billings to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Billings to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Billings with this policy.

How can momondo help me find flights from Billings to Washington, D.C.?

momondo helps you find the best flight between Billings and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Billings to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Billings to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport