$139 Find Cheap Flights from Washington Dulles Airport to Montana

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Montana departing on 4/15. 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 Montana

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Montana, 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 Montana, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Montana

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bozeman
Bozeman1 stop$267
Kalispell
Kalispell1 stop$305
Missoula
Missoula1 stop$277
Billings
Billings1 stop$278
Great Falls
Great Falls1 stop$311
Helena
Helena1 stop$349
Butte
Butte1 stop$1,024
Bozeman
Bozeman1 stop$267
Kalispell
Kalispell1 stop$305
Missoula
Missoula1 stop$277
Billings
Billings1 stop$278
Great Falls
Great Falls1 stop$311
Helena
Helena1 stop$349
Butte
Butte1 stop$1,024

Book Cheap Dulles Intl to Montana Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Montana 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 Dulles Intl to Montana

Tue, Mar 17 - Tue, Mar 24
Hawaiian Airlines Logo
7:05 am - 2:08 pm
IAD
-
BZN
9h 03m
1 stop
Hawaiian Airlines Logo
7:26 pm - 5:40 am
BZN
-
IAD
8h 14m
1 stop
$267Hawaiian Airlines
Wed, Mar 4 - Tue, Mar 10
Alaska Airlines Logo
7:05 am - 2:08 pm
IAD
-
BZN
9h 03m
1 stop
Alaska Airlines Logo
7:00 am - 5:20 pm
BZN
-
IAD
8h 20m
1 stop
$277Alaska Airlines
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
9:47 am - 4:08 pm
IAD
-
MSO
8h 21m
1 stop
United Airlines Logo
2:35 pm - 11:20 pm
MSO
-
IAD
6h 45m
1 stop
$277United Airlines
Tue, Apr 7 - Sat, Apr 18
Delta Logo
2:15 pm - 8:19 pm
IAD
-
BIL
8h 04m
1 stop
Delta Logo
6:24 am - 7:56 pm
BIL
-
IAD
11h 32m
2 stops
$278Delta
Sat, Feb 28 - Sat, Mar 7
United Airlines Logo
1:20 pm - 6:59 pm
IAD
-
BZN
7h 39m
1 stop
United Airlines Logo
3:00 pm - 8:59 pm
BZN
-
IAD
3h 59mnonstop
$279United Airlines
Thu, Feb 19 - Tue, Feb 24
Alaska Airlines Logo
6:27 pm - 10:53 am
IAD
-
BZN
18h 26m
1 stop
Alaska Airlines Logo
7:00 am - 5:20 pm
BZN
-
IAD
8h 20m
1 stop
$283Alaska Airlines
Fri, Feb 20 - Thu, Feb 26
Delta Logo
7:00 am - 12:53 pm
IAD
-
BZN
7h 53m
1 stop
Delta Logo
2:39 pm - 12:21 am
BZN
-
IAD
7h 42m
1 stop
$289Delta
Tue, Mar 17 - Tue, Mar 24
American Airlines Logo
5:00 am - 12:38 pm
IAD
-
BZN
9h 38m
2 stops
American Airlines Logo
1:47 pm - 10:53 pm
BZN
-
IAD
7h 06m
1 stop
$292American Airlines
Mon, Mar 2 - Mon, Mar 9
Southwest Logo
5:30 am - 10:20 am
IAD
-
BZN
6h 50m
1 stop
Southwest Logo
10:50 am - 12:15 am
BZN
-
IAD
11h 25m
1 stop
$304Southwest
Sat, May 30 - Mon, Jun 1
American Airlines Logo
6:10 am - 4:10 pm
IAD
-
MSO
12h 00m
1 stop
American Airlines Logo
4:40 pm - 5:00 am
MSO
-
IAD
10h 20m
1 stop
$341American Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Montana flights

Get data-powered insights and trends into flights from Dulles Intl to Montana to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Washington, D.C. Dulles Intl Airport to Montana flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Montana from Washington, D.C. Dulles Intl Airport found in the last 72 hours was to Bozeman, at $315 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Bozeman (BZN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $315.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Montana?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $435, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Montana?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Montana, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Montana is April, when tickets cost $337 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $712 and $583 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Montana?

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

If you are looking for a flight deal from Washington Dulles Airport to Montana, look for departures on Sundays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Montana, Friday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Montana?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Montana, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Montana, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$139
Best time to beat the crowds but there is an average 23% increase in price.
Most popular time to fly with an average 14% increase in price.
Flight from Washington Dulles Airport to Missoula

FAQs - booking Montana flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Montana?

    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 Dulles Airport to Montana.

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

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

    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 from Washington Dulles Airport to Montana with an airline and back with another airline.

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

    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 from Washington Dulles Airport to Montana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Montana?

    The cheapest time of day to fly to Montana is generally in the morning, when round-trip flights cost $573 on average. The most expensive time of day to fly to Montana is generally in the morning, which is peak travel time and where the average cost of a ticket is $573.

Reviews of the top 5 airlines serving from Dulles Intl to Montana

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Montana. 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 Dulles Intl to Montana? 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 11819 reviews
7.8Comfort
8.5Crew
7.0Entertainment
7.1Food
8.1Boarding
Airline reviews

The seats are very small. I’m 5’ 3”, so don’t think I should notice. The food selection was non existent and very disappointing. 5 hour flight plus TSA, etc. I would have appreciated a small salad, crudités. Something fresher not just chips.

8.0 ExcellentAnonymous, Dec 2025
DCA - SFO
Read more Alaska Airlines reviews

The seats are very small. I’m 5’ 3”, so don’t think I should notice. The food selection was non existent and very disappointing. 5 hour flight plus TSA, etc. I would have appreciated a small salad, crudités. Something fresher not just chips.

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

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

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

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.

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

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.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

It would be nice to have some low carb options in the snacks.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

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 Dulles Intl to Montana

Information on your arrival and departure airports