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Cheap flights from Billings to Washington, D.C. from $130

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 5/4. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
2:06 pm - 12:09 am
BIL
-
IAD
8h 03m
1 stop
Alaska Airlines Logo
6:00 am - 1:21 pm
IAD
-
BIL
9h 21m
1 stop
$349Alaska Airlines
Mon, May 11 - Sun, May 24
United Airlines Logo
2:25 pm - 11:32 pm
BIL
-
IAD
7h 07m
1 stop
United Airlines Logo
5:38 pm - 10:15 pm
IAD
-
BIL
6h 37m
1 stop
$369United Airlines
Sat, May 23 - Sat, May 30
Alaska Airlines Logo
7:00 am - 6:20 pm
BIL
-
IAD
9h 20m
1 stop
Alaska Airlines Logo
7:20 pm - 12:07 pm
IAD
-
BIL
18h 47m
1 stop
$384Alaska Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
12:42 pm - 12:13 am
BIL
-
IAD
9h 31m
2 stops
American Airlines Logo
6:14 am - 12:53 pm
IAD
-
BIL
8h 39m
1 stop
$389American Airlines
Wed, May 27 - Sat, May 30
Alaska Airlines Logo
7:00 am - 6:20 pm
BIL
-
IAD
9h 20m
1 stop
Alaska Airlines Logo
7:20 pm - 12:07 pm
IAD
-
BIL
18h 47m
1 stop
$399Alaska Airlines
Fri, Apr 24 - Fri, May 1
United Airlines Logo
5:00 am - 1:26 pm
BIL
-
IAD
6h 26m
1 stop
United Airlines Logo
6:30 am - 1:22 pm
IAD
-
BIL
8h 52m
1 stop
$408United Airlines
Sun, May 24 - Sun, May 31
Delta Logo
6:25 pm - 9:10 am
BIL
-
IAD
12h 45m
2 stops
Delta Logo
6:40 pm - 10:37 pm
IAD
-
BIL
5h 57m
1 stop
$419Delta
Sat, Aug 15 - Tue, Aug 25
American Airlines Logo
12:42 pm - 12:13 am
BIL
-
IAD
9h 31m
2 stops
American Airlines Logo
6:14 am - 12:53 pm
IAD
-
BIL
8h 39m
1 stop
$424American Airlines
Wed, May 27 - Sat, May 30
Delta Logo
6:18 pm - 9:50 am
BIL
-
IAD
13h 32m
2 stops
Delta Logo
12:12 pm - 10:24 pm
IAD
-
BIL
12h 12m
2 stops
$425Delta
Fri, Apr 24 - Fri, May 1
American Airlines Logo
12:42 pm - 12:13 am
BIL
-
IAD
9h 31m
2 stops
American Airlines Logo
1:12 pm - 11:15 pm
IAD
-
BIL
12h 03m
2 stops
$429American Airlines
Wed, May 27 - Sat, May 30

American Airlines flights from Billings to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Billings to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
May 27
BIL12:42 pmBillings Logan Intl
9h 31m
2 stops
IAD12:13 amWashington, D.C. Dulles Intl
May 30
IAD6:14 amWashington, D.C. Dulles Intl
8h 39m
1 stop
BIL12:53 pmBillings Logan Intl
$389
American Airlines
May 27
BIL12:42 pmBillings Logan Intl
9h 31m
2 stops
IAD12:13 amWashington, D.C. Dulles Intl
May 30
IAD6:14 amWashington, D.C. Dulles Intl
8h 39m
1 stop
BIL12:53 pmBillings Logan Intl
$424
American Airlines
May 27
BIL12:42 pmBillings Logan Intl
9h 31m
2 stops
IAD12:13 amWashington, D.C. Dulles Intl
May 30
IAD1:12 pmWashington, D.C. Dulles Intl
12h 03m
2 stops
BIL11:15 pmBillings Logan Intl
$429

Alaska Airlines flights from Billings to Washington, D.C. Dulles Intl Airport

Our best Alaska Airlines deals on Billings to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
May 11
BIL2:06 pmBillings Logan Intl
8h 03m
1 stop
IAD12:09 amWashington, D.C. Dulles Intl
May 24
IAD6:00 amWashington, D.C. Dulles Intl
9h 21m
1 stop
BIL1:21 pmBillings Logan Intl
$349
Alaska Airlines
Apr 24
BIL7:00 amBillings Logan Intl
9h 20m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
May 1
IAD7:20 pmWashington, D.C. Dulles Intl
18h 47m
1 stop
BIL12:07 pmBillings Logan Intl
$384
Alaska Airlines
Apr 24
BIL7:00 amBillings Logan Intl
9h 20m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
May 1
IAD7:20 pmWashington, D.C. Dulles Intl
18h 47m
1 stop
BIL12:07 pmBillings Logan Intl
$399

momondo Fare Finder

 
Customize your flight search to find flights from Billings to Washington, D.C. Dulles Intl Airport 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 March 29, 2026.
Use the filters below to find and compare flights from Billings to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Mon 5/11

2:06 pm-12:09 am

1 stop8h 03m

Washington, D.C. Dulles Intl

Sun 5/24

6:00 am-1:21 pm

1 stop9h 21m

$349
Quickest round-trip

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Sat 5/23

2:25 pm-11:32 pm

1 stop7h 07m

Washington, D.C. Dulles Intl

Sat 5/30

5:38 pm-10:15 pm

1 stop6h 37m

$369

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Fri 4/24

7:00 am-6:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Fri 5/1

7:20 pm-12:07 pm

1 stop18h 47m

$384

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Wed 5/27

12:42 pm-12:13 am

2 stops9h 31m

Washington, D.C. Dulles Intl

Sat 5/30

6:14 am-12:53 pm

1 stop8h 39m

$389

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Fri 4/24

7:00 am-6:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Fri 5/1

7:20 pm-12:07 pm

1 stop18h 47m

$399

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Sun 5/24

5:00 am-1:26 pm

1 stop6h 26m

Washington, D.C. Dulles Intl

Sun 5/31

6:30 am-1:22 pm

1 stop8h 52m

$408

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Sat 8/15

6:25 pm-9:10 am

2 stops12h 45m

Washington, D.C. Dulles Intl

Tue 8/25

6:40 pm-10:37 pm

1 stop5h 57m

$419

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Wed 5/27

12:42 pm-12:13 am

2 stops9h 31m

Washington, D.C. Dulles Intl

Sat 5/30

6:14 am-12:53 pm

1 stop8h 39m

$424

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Fri 4/24

6:18 pm-9:50 am

2 stops13h 32m

Washington, D.C. Dulles Intl

Fri 5/1

12:12 pm-10:24 pm

2 stops12h 12m

$425

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

Wed 5/27

12:42 pm-12:13 am

2 stops9h 31m

Washington, D.C. Dulles Intl

Sat 5/30

1:12 pm-11:15 pm

2 stops12h 03m

$429

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. Dulles Intl Airport

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 cheapest airline that flies from Billings Logan Intl to Washington, D.C. Dulles Intl?

Alaska Airlines, United Airlines, and Delta are the most popular carriers operating from Billings Logan Intl to Washington, D.C. Dulles Intl

When to book flights from Billings to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Billings to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport (BIL to IAD) flight deals and tips

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

Fastest flight time

6h 35m

Direct flights

None
The fastest flight from Billings to Washington, D.C. Dulles Intl Airport takes 6h 35m
There are no direct flights from Billings to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Billings to Washington, D.C. Dulles Intl Airport.
Search flight deals

  • How far is Billings Logan Intl to Washington, D.C. Dulles Intl by plane?

    A flight from Billings Logan Intl to Washington, D.C. Dulles Intl will travel around 1641.1 mi. A reasonable flight in good conditions will take 6h 35m.

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

    Prices for flights from Billings Logan Intl Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

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

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

    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. Dulles Intl Airport.

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

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Billings to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Billings to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $427Free CancellationRating
7.4
9,509 reviews
Search United Airlines 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
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Sterling
Linthicum Heights
Springfield
Bethesda

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?

Flights from Billings to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

Yes momondo offers price alerts on flights to Washington, D.C. from Billings. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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