$124 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 1/6. 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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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

Mon, Jan 19 - Thu, Jan 29
American Airlines Logo
6:00 am - 12:50 pmDCA-BZN
8h 50m1 stop
American Airlines Logo
1:42 pm - 10:55 pmBZN-DCA
7h 13m1 stop
$189American Airlines
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Tue, Dec 9 - Tue, Dec 16
American Airlines Logo
6:00 am - 12:54 pmIAD-BZN
8h 54m1 stop
American Airlines Logo
1:46 pm - 10:59 pmBZN-IAD
7h 13m1 stop
$189American Airlines
Find Deal
Wed, Mar 4 - Wed, Mar 18
American Airlines Logo
6:09 am - 2:57 pmDCA-BZN
10h 48m2 stops
American Airlines Logo
1:58 pm - 11:00 pmBZN-DCA
7h 02m1 stop
$194American Airlines
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Fri, Dec 12 - Tue, Dec 16
Alaska Airlines Logo
7:00 am - 2:04 pmBWI-BZN
9h 04m1 stop
Alaska Airlines Logo
7:00 am - 6:16 pmBZN-BWI
9h 16m1 stop
$242Alaska Airlines
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Fri, Jan 16 - Tue, Jan 20
Alaska Airlines Logo
7:14 pm - 10:42 amBWI-BZN
17h 28m1 stop
Alaska Airlines Logo
7:25 pm - 6:14 pmBZN-BWI
20h 49m1 stop
$248Alaska Airlines
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Thu, Jan 29 - Mon, Feb 2
Southwest Logo
5:10 pm - 10:15 pmBWI-BZN
7h 05m1 stop
Southwest Logo
7:40 am - 4:05 pmBZN-BWI
6h 25m1 stop
$249Southwest
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Mon, Feb 2 - Mon, Feb 9
Southwest Logo
5:30 pm - 10:15 pmIAD-BZN
6h 45m1 stop
Southwest Logo
7:40 am - 4:00 pmBZN-IAD
6h 20m1 stop
$249Southwest
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Sat, May 2 - Sat, May 9
United Airlines Logo
10:45 am - 10:56 pmBWI-BZN
14h 11m2 stops
United Airlines Logo
3:40 pm - 5:19 amBZN-BWI
11h 39m2 stops
$259United Airlines
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Thu, Jan 29 - Mon, Feb 2
Delta Logo
3:00 pm - 8:00 pmBWI-BZN
7h 00m1 stop
Delta Logo
6:00 am - 1:55 pmBZN-BWI
5h 55m1 stop
$277Delta
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Thu, Jan 29 - Mon, Feb 2
Delta Logo
3:00 pm - 8:00 pmBWI-BZN
7h 00m1 stop
Delta Logo
6:30 pm - 9:25 amBZN-BWI
12h 55m2 stops
$282Delta
Find Deal

Everything you should know

Cheapest round-trip
$189
Overall average: $373
American Airlines
Mon 1/19Thu 1/29
DCA - BZN • 1 stop
Cheapest non-stop
$402
United Airlines
Sat 1/3Sat 1/10
IAD - BZN • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Big Sky!
Useful Info

Good to know

Low seasonNovember
Cheapest flight$124
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 11% 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 6h 45m.

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

    Consider leaving on a Monday and avoid Saturdays 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 Tuesdays.

  • 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 Alaska Airlines for $124. American Airlines offered a round-trip connection from $189 and Alaska Airlines from $242.

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 November, December and January. 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 11273 reviews
7.0Entertainment
7.1Food
7.8Comfort
8.1Boarding
8.5Crew
Airline reviews

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.

10.0 ExcellentAnonymous, Nov 2025DCA - LAX
Read more Alaska Airlines reviews

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.

I liked that it didn't take 10 hours to drive here. Super short trip!

Wheelchair assistance was provided in Seattle and was very gratefully accepted. Thank you to the Alaska staff.

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

The Boeing 737 plane is old with narrow seats and tiny lavatories. The flight was delayed for over 2 hours. The flight attendants were discourteous.

Only offered water, no snacks provided, and it was cold on the plane, everyone was wearing sweatshirt or jacket in June. I asked for blanket, but crew said they didnt have anything and would turn the heat up, that didn't happen, so for 6 hours I remained cold.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

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.

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.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

Everything was good The connects, with no blame to crew. Or pilots. I understand they are short staffed. Everything went well for me. I'll be using you guys again in May if not sooner.

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

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.

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.

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

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