BIL - DCA

$359 Find Cheap Flights from Billings to Reagan Washington National Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Reagan-National departing on 2/4. 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 Washington, D.C. Reagan-National Airport

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

Cheapest round-trip
$359
Typical prices: $712-$815
Delta
Wed 2/11Sun 2/15
BIL - DCA • 1 stop
Cheapest one-way
$230
Alaska Airlines
Wed 2/4
BIL - DCA • 1 stop
Top airlines
Delta
Cheapest • from $359 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Reagan-National (BIL-DCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Reagan-National 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 Billings to Reagan-National

Wed, Feb 11 - Sun, Feb 15
Delta Logo
6:10 am - 1:35 pm
BIL
-
DCA
5h 25m
1 stop
Delta Logo
5:10 pm - 10:26 pm
DCA
-
BIL
7h 16m
1 stop
$359Delta
Wed, Feb 11 - Sun, Feb 15
Delta Logo
5:15 am - 6:04 pm
BIL
-
DCA
10h 49m
2 stops
Delta Logo
5:10 pm - 10:26 pm
DCA
-
BIL
7h 16m
1 stop
$364Delta
Wed, Feb 11 - Sun, Feb 15
American Airlines Logo
6:54 am - 9:30 pm
BIL
-
DCA
12h 36m
2 stops
American Airlines Logo
3:21 pm - 11:35 pm
DCA
-
BIL
10h 14m
2 stops
$369American Airlines
Fri, Jul 10 - Tue, Jul 14
Delta Logo
6:15 am - 1:57 pm
BIL
-
DCA
5h 42m
1 stop
Delta Logo
3:05 pm - 10:37 pm
DCA
-
BIL
9h 32m
2 stops
$435Delta
Thu, Apr 2 - Tue, Apr 7
Alaska Airlines Logo
7:56 am - 9:59 pm
BIL
-
DCA
12h 03m
1 stop
Alaska Airlines Logo
8:00 am - 11:58 pm
DCA
-
BIL
17h 58m
1 stop
$439Alaska Airlines
Fri, Jul 10 - Tue, Jul 14
Delta Logo
6:15 am - 1:57 pm
BIL
-
DCA
5h 42m
1 stop
Delta Logo
5:00 pm - 10:27 pm
DCA
-
BIL
7h 27m
1 stop
$455Delta
Mon, Mar 9 - Fri, Mar 13
Alaska Airlines Logo
2:04 pm - 9:59 pm
BIL
-
DCA
29h 55m
1 stop
Alaska Airlines Logo
5:06 pm - 1:24 pm
DCA
-
BIL
22h 18m
1 stop
$503Alaska Airlines
Thu, Feb 12 - Mon, Feb 16
Delta Logo
5:10 am - 4:00 pm
BIL
-
DCA
8h 50m
1 stop
Delta Logo
3:10 pm - 7:39 pm
DCA
-
BIL
6h 29m
1 stop
$509Delta
Thu, Feb 12 - Mon, Feb 16
Delta Logo
5:10 am - 4:00 pm
BIL
-
DCA
8h 50m
1 stop
Delta Logo
6:05 am - 5:27 pm
DCA
-
BIL
13h 22m
2 stops
$514Delta
Thu, Apr 2 - Tue, Apr 7
Alaska Airlines Logo
7:56 am - 9:59 pm
BIL
-
DCA
12h 03m
1 stop
Alaska Airlines Logo
5:20 pm - 11:54 am
DCA
-
BIL
20h 34m
2 stops
$517Alaska Airlines
Booking Insights

KAYAK's insights & trends for Billings to Reagan-National flights

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

How much is a round-trip flight from Billings to Washington, D.C. Reagan-National Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Billings to Washington, D.C. Reagan-National Airport departing in February.

Good to know

Low seasonNovember
Cheapest flight$230
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Billings to Reagan Washington National Airport

When to book flights from Billings to Reagan-National

Are your dates flexible? Find out the best times to travel from Billings to Reagan-National 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 Billings to Reagan Washington National Airport flights

  • What is the cheapest flight from Billings to Washington, D.C. Reagan-National Airport?

    In the last 3 days, the lowest price for a flight from Billings to Washington, D.C. Reagan-National Airport was $230 for a one-way ticket and $359 for a round-trip.

  • Do I need a passport to fly between Billings and Reagan Washington National Airport?

    A passport is not required to fly from Billings to Reagan Washington National Airport.

  • Which aircraft models fly most regularly from Billings to Reagan Washington National Airport?

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

  • Which airline alliances offer flights from Billings to Reagan Washington National Airport?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Billings and Reagan Washington National Airport, with Star Alliance being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Billings to Washington, D.C. are Delta and United Airlines. With an average price for the route of $558 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 $484 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Billings to Reagan Washington National Airport?

    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 Billings to Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Billings to Reagan Washington National Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport from Billings 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 Billings to Reagan Washington National Airport?

    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 Reagan Washington National Airport with an airline and back to Billings with another airline. Booking your flights between Billings and DCA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Billings to Reagan Washington National Airport?

    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 Reagan Washington National Airport from Billings 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 Billings to Reagan-National

 
See real verified KAYAK customer reviews for airlines flying from Billings to Washington, D.C.. 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 Billings to Reagan-National? 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 8128 reviews
7.2Food
8.5Crew
7.8Entertainment
7.9Comfort
8.1Boarding
Airline reviews

Timing, quality of service, promptness and courtesy of the staff

10.0 ExcellentAjai, Jan 2026
DFW - ATL
Read more Delta reviews

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

The food is terrible. The same pasta or chicken with bad taste and presentation

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

A little late at the start but all worked out well.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

The boarding crew was incredibly helpful getting me on an earlier flight

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Everything you need to know for your flight from Billings to Reagan-National

Information on your arrival and departure airports