Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Billings to Washington, D.C. from $194

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 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Billings to Washington, D.C.

Cheap round-trip flights

United Airlines Logo
7:00 am - 3:34 pmBIL-IAD
6h 34m1 stop
United Airlines Logo
6:30 am - 11:16 amIAD-BIL
6h 46m1 stop
$389United Airlines
Find Deal
sáb., sep. 13 - sáb., sep. 20
American Airlines Logo
6:00 am - 6:47 pmBIL-IAD
10h 47m2 stops
American Airlines Logo
6:25 am - 1:29 pmIAD-BIL
9h 04m1 stop
$394American Airlines
Find Deal
sáb., sep. 20 - dom., sep. 21
Delta Logo
6:25 am - 6:39 pmBIL-IAD
10h 14m2 stops
Delta Logo
2:15 pm - 7:44 pmIAD-BIL
7h 29m1 stop
$419Delta
Find Deal
sáb., sep. 13 - sáb., sep. 20
Delta Logo
6:25 am - 6:39 pmBIL-IAD
10h 14m2 stops
Delta Logo
9:00 am - 7:44 pmIAD-BIL
12h 44m2 stops
$424Delta
Find Deal
sáb., sep. 13 - sáb., sep. 20
American Airlines Logo
1:59 pm - 10:48 pmBIL-IAD
6h 49m1 stop
American Airlines Logo
6:25 am - 1:29 pmIAD-BIL
9h 04m1 stop
$444American Airlines
Find Deal
sáb., sep. 20 - dom., sep. 21
United Airlines Logo
12:00 pm - 8:55 pmBIL-IAD
6h 55m1 stop
United Airlines Logo
2:39 pm - 8:34 pmIAD-BIL
7h 55m1 stop
$479United Airlines
Find Deal
lun., sep. 15 - mié., sep. 17
American Airlines Logo
6:00 am - 11:07 pmBIL-IAD
15h 07m2 stops
American Airlines Logo
8:09 pm - 11:55 amIAD-BIL
17h 46m2 stops
$517American Airlines
Find Deal
mar., nov. 18 - mar., dic. 2
American Airlines Logo
6:00 am - 4:11 pmBIL-IAD
8h 11m1 stop
American Airlines Logo
6:04 am - 9:15 pmIAD-BIL
17h 11m1 stop
$533American Airlines
Find Deal
mar., nov. 18 - mar., dic. 2
United Airlines Logo
12:00 pm - 7:30 amBIL-IAD
17h 30m2 stops
United Airlines Logo
6:35 am - 11:16 amIAD-BIL
6h 41m1 stop
$536United Airlines
Find Deal
lun., sep. 15 - mié., sep. 17
Hawaiian Airlines Logo
6:00 am - 5:09 pmBIL-IAD
9h 09m1 stop
Hawaiian Airlines Logo
7:00 am - 3:03 pmIAD-BIL
10h 03m1 stop
$922Hawaiian Airlines
Find Deal
lun., sep. 1 - mié., sep. 3

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

Our best United Airlines deals on Billings to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Sep 13
BIL7:00 amBillings Logan Intl
6h 34m
1 stop
IAD3:34 pmWashington, D.C. Dulles Intl
Sep 20
IAD6:30 amWashington, D.C. Dulles Intl
6h 46m
1 stop
BIL11:16 amBillings Logan Intl
$389
Find similar
United Airlines
Sep 15
BIL12:00 pmBillings Logan Intl
6h 55m
1 stop
IAD8:55 pmWashington, D.C. Dulles Intl
Sep 17
IAD2:39 pmWashington, D.C. Dulles Intl
7h 55m
1 stop
BIL8:34 pmBillings Logan Intl
$479
Find similar
United Airlines
Sep 15
BIL12:00 pmBillings Logan Intl
17h 30m
2 stops
IAD7:30 amWashington, D.C. Dulles Intl
Sep 17
IAD6:35 amWashington, D.C. Dulles Intl
6h 41m
1 stop
BIL11:16 amBillings Logan Intl
$536
Find similar

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
Sep 20
BIL6:00 amBillings Logan Intl
10h 47m
2 stops
IAD6:47 pmWashington, D.C. Dulles Intl
Sep 21
IAD6:25 amWashington, D.C. Dulles Intl
9h 04m
1 stop
BIL1:29 pmBillings Logan Intl
$394
Find similar
American Airlines
Sep 20
BIL1:59 pmBillings Logan Intl
6h 49m
1 stop
IAD10:48 pmWashington, D.C. Dulles Intl
Sep 21
IAD6:25 amWashington, D.C. Dulles Intl
9h 04m
1 stop
BIL1:29 pmBillings Logan Intl
$444
Find similar
American Airlines
Nov 18
BIL6:00 amBillings Logan Intl
15h 07m
2 stops
IAD11:07 pmWashington, D.C. Dulles Intl
Dec 2
IAD8:09 pmWashington, D.C. Dulles Intl
17h 46m
2 stops
BIL11:55 amBillings Logan Intl
$517
Find similar

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 agosto 18, 2025.
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

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

sáb. 9/13

7:00 am-3:34 pm

1 stop6h 34m

Washington, D.C. Dulles Intl

sáb. 9/20

6:30 am-11:16 am

1 stop6h 46m

$389

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

sáb. 9/20

6:00 am-6:47 pm

2 stops10h 47m

Washington, D.C. Dulles Intl

dom. 9/21

6:25 am-1:29 pm

1 stop9h 04m

$394

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

sáb. 9/13

6:25 am-6:39 pm

2 stops10h 14m

Washington, D.C. Dulles Intl

sáb. 9/20

2:15 pm-7:44 pm

1 stop7h 29m

$419

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

sáb. 9/13

6:25 am-6:39 pm

2 stops10h 14m

Washington, D.C. Dulles Intl

sáb. 9/20

9:00 am-7:44 pm

2 stops12h 44m

$424

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

sáb. 9/20

1:59 pm-10:48 pm

1 stop6h 49m

Washington, D.C. Dulles Intl

dom. 9/21

6:25 am-1:29 pm

1 stop9h 04m

$444

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

lun. 9/15

12:00 pm-8:55 pm

1 stop6h 55m

Washington, D.C. Dulles Intl

mié. 9/17

2:39 pm-8:34 pm

1 stop7h 55m

$479

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

mar. 11/18

6:00 am-11:07 pm

2 stops15h 07m

Washington, D.C. Dulles Intl

mar. 12/2

8:09 pm-11:55 am

2 stops17h 46m

$517

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

mar. 11/18

6:00 am-4:11 pm

1 stop8h 11m

Washington, D.C. Dulles Intl

mar. 12/2

6:04 am-9:15 pm

1 stop17h 11m

$533

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

lun. 9/15

12:00 pm-7:30 am

2 stops17h 30m

Washington, D.C. Dulles Intl

mié. 9/17

6:35 am-11:16 am

1 stop6h 41m

$536

BillingsWashington, D.C.

BIL - IAD

BILIAD

Billings Logan Intl

lun. 9/1

6:00 am-5:09 pm

1 stop9h 09m

Washington, D.C. Dulles Intl

mié. 9/3

7:00 am-3:03 pm

1 stop10h 03m

$922

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $594. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Billings to Washington, D.C. Dulles Intl Airport for around $778.

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

Flying to Washington, D.C. Dulles Intl Airport from Billings in the morning is the least expensive time of day to depart. momondo users have found prices as low as $628 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $758 on average. Flights to Washington, D.C. Dulles Intl Airport from Billings at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Best Price Found

$194

Fastest flight time

5h 00m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from Billings in the past 72 hours is $194. The best round-trip flight deal from Billings to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $389.
The fastest flight from Billings to Washington, D.C. Dulles Intl Airport takes 5h 00m
There are no direct flights from Billings to Washington, D.C. Dulles Intl Airport. Popular non-direct route for this connection is Billings Logan Intl Airport - 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 5h 00m.

  • 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 $373Free CancellationRating
7.4
8,925 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
Gettysburg
Arlington
National Harbor
Winchester
Woodbridge
Tysons
Laurel
Silver Spring
Waldorf
Fredericksburg
Colonial Beach
Manassas
Harpers Ferry
Rockville
Towson
Gaithersburg
Fairfax
Reston
Glen Burnie

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.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb. 8/23
sáb. 8/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.