$125 Find Cheap Flights from Washington, D.C. to Big Sky

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 Big Sky departing on 2/1. 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

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Everything you should know

Cheapest round-trip
$248
Overall average: $403
Alaska Airlines
Thu 1/29Mon 2/2
BWI - BZN • 1 stop
Cheapest non-stop
$269
United Airlines
Sat 1/24Sat 1/31
IAD - BZN • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Washington, D.C. to Big Sky (WAS-BZN)

 
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 Big Sky 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 Big Sky

Thu, Jan 29 - Mon, Feb 2
Alaska Airlines Logo
7:14 pm - 11:20 am
BWI
-
BZN
18h 06m1 stop
Alaska Airlines Logo
3:03 pm - 6:14 pm
BZN
-
BWI
25h 11m1 stop
$248Alaska Airlines
Wed, Mar 4 - Tue, Mar 10
American Airlines Logo
6:50 am - 12:38 pm
BWI
-
BZN
7h 48m1 stop
American Airlines Logo
7:00 am - 6:04 pm
BZN
-
BWI
9h 04m1 stop
$249American Airlines
Tue, Jan 20 - Tue, Jan 27
United Airlines Logo
4:10 pm - 9:33 pm
BWI
-
BZN
7h 23m1 stop
United Airlines Logo
6:15 am - 9:21 pm
BZN
-
BWI
13h 06m2 stops
$254United Airlines
Tue, Jan 20 - Tue, Jan 27
United Airlines Logo
10:05 am - 9:33 pm
BWI
-
BZN
13h 28m2 stops
United Airlines Logo
6:15 am - 9:21 pm
BZN
-
BWI
13h 06m2 stops
$259United Airlines
Fri, Jan 23 - Tue, Jan 27
Alaska Airlines Logo
7:14 pm - 10:42 am
BWI
-
BZN
17h 28m1 stop
Alaska Airlines Logo
7:20 am - 6:14 pm
BZN
-
BWI
8h 54m1 stop
$268Alaska Airlines
Sat, Jan 24 - Sat, Jan 31
United Airlines Logo
8:30 am - 11:21 am
IAD
-
BZN
4h 51mnonstop
United Airlines Logo
3:00 pm - 8:48 pm
BZN
-
IAD
3h 48mnonstop
$269United Airlines
Sat, Jan 24 - Sat, Jan 31
Hawaiian Airlines Logo
5:01 pm - 11:56 pm
DCA
-
BZN
8h 55m1 stop
Hawaiian Airlines Logo
11:22 am - 9:59 pm
BZN
-
DCA
8h 37m1 stop
$275Hawaiian Airlines
Tue, Jan 20 - Thu, Jan 29
Delta Logo
3:00 pm - 8:06 pm
BWI
-
BZN
7h 06m1 stop
Delta Logo
6:00 am - 1:57 pm
BZN
-
BWI
5h 57m1 stop
$277Delta
Fri, Jan 23 - Tue, Jan 27
Delta Logo
3:00 pm - 8:06 pm
BWI
-
BZN
7h 06m1 stop
Delta Logo
2:00 pm - 12:41 am
BZN
-
BWI
8h 41m2 stops
$282Delta
Fri, Jan 23 - Sun, Jan 25
Southwest Logo
5:30 pm - 10:15 pm
IAD
-
BZN
6h 45m1 stop
Southwest Logo
7:40 am - 10:40 pm
BZN
-
IAD
13h 00m1 stop
$304Southwest
Useful Info

Good to know

Low seasonNovember
Cheapest flight$125
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 12% increase in price.
Flight from Baltimore to Bozeman

When to book flights from Washington, D.C. to Big Sky

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Big Sky based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Washington, D.C. to Big Sky

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

    When flying out of Washington, D.C. you’ll be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. Big Sky does not have its own airport so you’ll be flying into nearby Bozeman Gallatin Field airport, which is 37.5 mi away.

  • How long does a flight from Washington, D.C. to Big Sky take?

    Direct flights cover the 1,790 miles separating Washington, D.C. and Big Sky in about 4h 51m.

  • What’s the cheapest day of the week to fly between Washington, D.C. and Big Sky?

    Consider leaving on a Monday and avoid Thursdays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

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

    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 Big Sky.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Big Sky 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 Big Sky?

    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 Big Sky 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 Big Sky?

    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 Big Sky from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Washington, D.C. to Big Sky?

    In the last 72 hours, the cheapest one-way ticket between Washington, D.C. and Big Sky found on KAYAK was with Delta for $128. Delta offered a round-trip connection from $192 and Southwest from $241.

Top tips for finding cheap flights from Washington, D.C. to Big Sky

  • There is no airport in Big Sky. Instead, you’ll be flying into Gallatin Field Airport when flying between Washington, D.C. and Big Sky.
  • The cheapest flight from Washington, D.C. to Big Sky was found 53 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly is January.

Reviews of the top 5 airlines serving Washington, D.C. to Big Sky

 
Need help choosing which airline to fly with from Washington, D.C. to Big Sky? 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.
8.0
Alaska AirlinesOverall score based on 11570 reviews
8.5Crew
7.8Comfort
7.1Food
7.0Entertainment
8.1Boarding
Airline reviews

Larger seats with a bit more room would be good! Thanks for all your hard work. I think we are all feeling a bit down these days economically and your positive attitudes, both from SJC to Seattle and from Seattle to Bozeman makes more of a difference than you can see! Thank you and Merry Christmas! I hope all your financial needs are met and that very good things come your way.

10.0 ExcellentAnonymous, Dec 2025
SEA - BZN
Read more Alaska Airlines reviews

Larger seats with a bit more room would be good! Thanks for all your hard work. I think we are all feeling a bit down these days economically and your positive attitudes, both from SJC to Seattle and from Seattle to Bozeman makes more of a difference than you can see! Thank you and Merry Christmas! I hope all your financial needs are met and that very good things come your way.

We appreciated that the flight attendant came through 3 times with drinks or water on the long flight..I was also glad that they were separating out recycling! I would have liked a 12oz sofa can instead of 7oz, but that's a minor quibble. The knee space in economy was also better than most of Alaska's competitors.

I liked the free snacks and drink. I liked the onboard entertainment. I did not like the WiFi cutting out in middle of my movie.

I purchased a 1st class ticket and unfortunately the main flight attendant was not the best and seemed more interested in her phone than the passengers at times. Then the plane didn’t get restocked and the only snacks for this flight were pretzels. However I would like to say that the rest of the flight crew and ground crew at the airport we’re great, especially the people that wheeled me around the airport some and then the one getting me to the plane and the automated wheelchair that wheeled me through the airport.

Flight from LAX to STS das excellent. Flight from DCA to LAX was troubled by the previous flight returning to the one DCA gate putting our flight in jeopardy. However another gate was arranged and that flight was a bit late, but was handled exceptionally.

Boarding process was poorly handled by the gate crew and the onboard crew. No effort was made to provide equal treatment to passengers with overhead bin space. Crew seemed disengaged and unfriendly.

Awesome. Great flight. Super nice people and I like the extra space

Flight was delayed as it always is with Alaska airlines. Particularly to smaller airports. No AC on the plane so it was miserably hot.

On time, WiFi worked, reasonable legroom, helpful staff. Unfortunately there was no water for handwashing in the rear lavatory.

My husband unfortunately had a very large lady next to him who did not fit in the seat and had to have the armrest up so she was partially in his seat and she also had horrible BO

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

The flight was delayed for about 2 hrs. Other than it, it was good.

Advertised fruit trays with cheese, but only snacks handed out!

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

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

Better service. No food options, but we did get drinks and a cookie.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

delayed due to weather. Could not communicate with family since the wifi was broken

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were told the flight was delayed 5 times, then it was moved to the next day.

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.

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

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