WAS - BIL

$140 Find Cheap Flights from Washington, D.C. to Billings

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Billings departing on 1/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Billings

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Billings, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Billings, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$409
Delta
Tue 4/28Wed 4/29
DCA - BIL • 1 stop
Cheapest one-way
$140
Multiple Airlines
Thu 1/8
BWI - BIL • 2 stops
Top airlines
Delta
Cheapest • from $409 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Billings!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Billings (WAS-BIL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Billings that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Billings

Tue, Apr 28 - Wed, Apr 29
Delta Logo
5:00 pm - 10:27 pmDCA-BIL
7h 27m1 stop
Delta Logo
6:15 am - 1:57 pmBIL-DCA
5h 42m1 stop
$409Delta
Find Deal
Sun, Dec 7 - Sun, Dec 14
American Airlines Logo
6:00 am - 1:28 pmIAD-BIL
9h 28m1 stop
American Airlines Logo
5:10 am - 4:08 pmBIL-IAD
8h 58m1 stop
$409American Airlines
Find Deal
Tue, Apr 28 - Wed, Apr 29
Delta Logo
3:05 pm - 10:37 pmDCA-BIL
9h 32m2 stops
Delta Logo
6:15 am - 1:57 pmBIL-DCA
5h 42m1 stop
$414Delta
Find Deal
Sat, May 2 - Tue, May 5
Alaska Airlines Logo
7:00 am - 3:07 pmBWI-BIL
10h 07m1 stop
Alaska Airlines Logo
6:00 am - 6:02 pmBIL-BWI
10h 02m1 stop
$423Alaska Airlines
Find Deal
Mon, Dec 8 - Sun, Dec 14
United Airlines Logo
4:15 pm - 9:21 pmBWI-BIL
7h 06m1 stop
United Airlines Logo
7:00 am - 3:11 pmBIL-BWI
6h 11m1 stop
$424United Airlines
Find Deal
Sat, May 2 - Tue, May 5
Delta Logo
10:00 am - 10:27 pmBWI-BIL
14h 27m2 stops
Delta Logo
6:25 pm - 6:03 amBIL-BWI
9h 38m1 stop
$429Delta
Find Deal
Sun, Dec 7 - Sun, Dec 14
Alaska Airlines Logo
7:34 am - 12:08 amIAD-BIL
18h 34m1 stop
Alaska Airlines Logo
3:36 pm - 4:36 pmBIL-IAD
23h 00m2 stops
$433Alaska Airlines
Find Deal
Sat, May 2 - Tue, May 5
Delta Logo
3:00 pm - 10:27 pmBWI-BIL
9h 27m2 stops
Delta Logo
6:25 pm - 9:15 amBIL-BWI
12h 50m2 stops
$434Delta
Find Deal
Mon, Dec 15 - Sat, Dec 20
United Airlines Logo
2:30 pm - 9:21 pmIAD-BIL
8h 51m1 stop
United Airlines Logo
2:40 pm - 11:23 pmBIL-IAD
6h 43m1 stop
$461United Airlines
Find Deal
Sat, Nov 22 - Wed, Nov 26
American Airlines Logo
6:44 am - 9:15 pmIAD-BIL
16h 31m2 stops
American Airlines Logo
2:00 pm - 1:12 pmBIL-IAD
21h 12m2 stops
$698American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Billings flights

Get data-powered insights and trends into flights from Washington, D.C. to Billings to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington, D.C. to Billings?

The average price of all round-trip flights from Washington, D.C. to Billings clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Billings on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Washington, D.C. to Billings. For your return ticket, we recommend flying on a Thursday and avoiding Fridays for the best deals.

Good to know

Low seasonJuly
Cheapest flight$140
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Baltimore to Billings

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Billings based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Billings

  • What is the cheapest flight from Washington, D.C. to Billings?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Billings was $140 for a one-way ticket and $409 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Billings?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Washington, D.C. to Billings?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at Billings Logan Intl.

  • Which aircraft models fly most regularly from Washington, D.C. to Billings?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Billings?

    oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Billings, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Billings, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Billings are Delta and United Airlines. With an average price for the route of $528 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $567 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Billings?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Billings.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Billings?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Billings?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Billings with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Billings?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Billings from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Washington, D.C. to Billings

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Billings. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Billings? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8004 reviews
7.9Comfort
8.5Crew
7.3Food
7.9Entertainment
8.1Boarding
Airline reviews

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

2.0 MediocreAnonymous, Nov 2025MOB - ATL
Read more Delta reviews

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

Baggage handling poor. Second time this has happened. My bag went to San Francisco instead of Fiji. No apology. Luckily Nadi airport staff are fantastic. My bag arrived in Fiji the next day.

We loved the steward on the plane. He made the night enjoyable

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

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

Information on your arrival and departure airports