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Cheap flights from Washington, D.C. Dulles Intl Airport to Billings from $205

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Billings departing on 11/3. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Billings

Cheap round-trip flights

Alaska Airlines Logo
7:43 am - 3:00 pmIAD-BIL
9h 17m1 stop
Alaska Airlines Logo
7:19 pm - 6:23 amBIL-IAD
9h 04m1 stop
$408Alaska Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19
Delta Logo
6:59 pm - 11:19 pmIAD-BIL
6h 20m1 stop
Delta Logo
6:25 am - 1:28 pmBIL-IAD
5h 03m1 stop
$409Delta
Find Deal
Wed, Nov 19 - Fri, Nov 28
American Airlines Logo
6:11 am - 1:22 pmIAD-BIL
9h 11m1 stop
American Airlines Logo
12:20 pm - 11:53 pmBIL-IAD
9h 33m2 stops
$414American Airlines
Find Deal
Sat, Oct 25 - Mon, Oct 27
Delta Logo
6:55 am - 5:44 pmIAD-BIL
12h 49m2 stops
Delta Logo
5:18 am - 7:27 pmBIL-IAD
12h 09m2 stops
$419Delta
Find Deal
Sat, Nov 15 - Wed, Nov 19
Alaska Airlines Logo
6:25 am - 3:04 pmIAD-BIL
10h 39m1 stop
Alaska Airlines Logo
6:00 am - 12:23 amBIL-IAD
16h 23m1 stop
$422Alaska Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
United Airlines Logo
6:30 am - 11:16 amIAD-BIL
6h 46m1 stop
United Airlines Logo
5:00 am - 1:28 pmBIL-IAD
6h 28m1 stop
$487United Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19
United Airlines Logo
6:30 am - 11:16 amIAD-BIL
6h 46m1 stop
United Airlines Logo
7:00 am - 4:58 pmBIL-IAD
7h 58m1 stop
$490United Airlines
Find Deal
Fri, Oct 17 - Sat, Oct 18
American Airlines Logo
6:11 am - 1:23 pmIAD-BIL
9h 12m1 stop
American Airlines Logo
12:20 pm - 11:53 pmBIL-IAD
9h 33m2 stops
$529American Airlines
Find Deal
Fri, Oct 17 - Sat, Oct 18
Multiple Airlines Logo
12:46 pm - 9:12 amIAD-BIL
22h 26m2 stops
Multiple Airlines Logo
9:35 pm - 11:26 amBIL-IAD
11h 51m2 stops
$612Multiple Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19
Multiple Airlines Logo
12:46 pm - 9:12 amIAD-BIL
22h 26m2 stops
Multiple Airlines Logo
9:35 pm - 11:26 amBIL-IAD
11h 51m2 stops
$621Multiple Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19

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

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to Billings flight tickets
Alaska Airlines
Nov 15
IAD7:43 amWashington, D.C. Dulles Intl
9h 17m
1 stop
BIL3:00 pmBillings Logan Intl
Nov 19
BIL7:19 pmBillings Logan Intl
9h 04m
1 stop
IAD6:23 amWashington, D.C. Dulles Intl
$408
Find similar
Alaska Airlines
Oct 4
IAD6:25 amWashington, D.C. Dulles Intl
10h 39m
1 stop
BIL3:04 pmBillings Logan Intl
Oct 7
BIL6:00 amBillings Logan Intl
16h 23m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
$422
Find similar
Alaska Airlines
Oct 14
IAD6:25 amWashington, D.C. Dulles Intl
19h 43m
1 stop
BIL12:08 amBillings Logan Intl
Oct 21
BIL7:15 pmBillings Logan Intl
27h 08m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
$442
Find similar

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Billings flight tickets
Delta
Nov 19
IAD6:59 pmWashington, D.C. Dulles Intl
6h 20m
1 stop
BIL11:19 pmBillings Logan Intl
Nov 28
BIL6:25 amBillings Logan Intl
5h 03m
1 stop
IAD1:28 pmWashington, D.C. Dulles Intl
$409
Find similar
Delta
Nov 15
IAD6:55 amWashington, D.C. Dulles Intl
12h 49m
2 stops
BIL5:44 pmBillings Logan Intl
Nov 19
BIL5:18 amBillings Logan Intl
12h 09m
2 stops
IAD7:27 pmWashington, D.C. Dulles Intl
$419
Find similar
Delta
Oct 23
IAD7:10 pmWashington, D.C. Dulles Intl
6h 08m
1 stop
BIL11:18 pmBillings Logan Intl
Nov 1
BIL2:30 pmBillings Logan Intl
7h 03m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
$450
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated September 16, 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

Fly to

Route

Depart

Return

Price

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 11/15

7:43 am-3:00 pm

1 stop9h 17m

Billings Logan Intl

Wed 11/19

7:19 pm-6:23 am

1 stop9h 04m

$408

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Wed 11/19

6:59 pm-11:19 pm

1 stop6h 20m

Billings Logan Intl

Fri 11/28

6:25 am-1:28 pm

1 stop5h 03m

$409

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 10/25

6:11 am-1:22 pm

1 stop9h 11m

Billings Logan Intl

Mon 10/27

12:20 pm-11:53 pm

2 stops9h 33m

$414

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 11/15

6:55 am-5:44 pm

2 stops12h 49m

Billings Logan Intl

Wed 11/19

5:18 am-7:27 pm

2 stops12h 09m

$419

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 10/4

6:25 am-3:04 pm

1 stop10h 39m

Billings Logan Intl

Tue 10/7

6:00 am-12:23 am

1 stop16h 23m

$422

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sun 10/12

6:30 am-11:16 am

1 stop6h 46m

Billings Logan Intl

Sun 10/19

5:00 am-1:28 pm

1 stop6h 28m

$487

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Fri 10/17

6:30 am-11:16 am

1 stop6h 46m

Billings Logan Intl

Sat 10/18

7:00 am-4:58 pm

1 stop7h 58m

$490

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Fri 10/17

6:11 am-1:23 pm

1 stop9h 12m

Billings Logan Intl

Sat 10/18

12:20 pm-11:53 pm

2 stops9h 33m

$529

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sun 10/12

12:46 pm-9:12 am

2 stops22h 26m

Billings Logan Intl

Sun 10/19

9:35 pm-11:26 am

2 stops11h 51m

$612

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sun 10/12

12:46 pm-9:12 am

2 stops22h 26m

Billings Logan Intl

Sun 10/19

9:35 pm-11:26 am

2 stops11h 51m

$621

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Billings from

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

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 Billings?

Our data shows that Tuesday is the least expensive day to fly to Billings. Tickets to fly out on this day can be as low as $568. Flights from Washington, D.C. Dulles Intl Airport to Billings on a Sunday will generally be more expensive and average around $727. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Billings?

According to our data, the cheapest time of day to fly to Billings is at noon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Billings at noon for as low as $596. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Billings, so prices are often more expensive at around $630 per ticket.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Billings flights?

You could potentially save up to 33% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Billings flight.

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

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

Cheap Washington, D.C. Dulles Intl Airport to Billings (IAD to BIL) flight deals and tips

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

Direct flights

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

    Billings Logan Intl is 1641.1 mi away from Washington, D.C. Dulles Intl. A reasonable flight in good conditions will take 6h 08m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Billings Logan Intl Airport.

  • What documentation or ID do you need to fly to Billings Logan Intl Airport?

    The necessary travel and health documents for your Billings Logan 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 Washington, D.C. Dulles Intl Airport to Billings?

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Billings with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $434Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights

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

momondo does allow users to show only those flights to Billings from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington, D.C. to Billings flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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