IAD - MSO

$170 Find Cheap Flights from Washington Dulles Airport to Missoula

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 Missoula departing on 9/17. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Missoula, 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 Missoula, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Dulles Intl to Missoula (IAD-MSO)

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

Thu, Nov 13 - Wed, Nov 19
Alaska Airlines Logo
7:43 am - 3:24 pmIAD-MSO
9h 41m1 stop
Alaska Airlines Logo
4:12 pm - 6:23 amMSO-IAD
12h 11m1 stop
$340Alaska Airlines
Find Deal
Wed, Nov 12 - Tue, Nov 18
Delta Logo
7:20 am - 12:39 pmIAD-MSO
7h 19m1 stop
Delta Logo
12:55 pm - 11:49 pmMSO-IAD
8h 54m1 stop
$341Delta
Find Deal
Wed, Nov 12 - Tue, Nov 18
Delta Logo
11:00 am - 8:12 pmIAD-MSO
11h 12m2 stops
Delta Logo
12:55 pm - 11:49 pmMSO-IAD
8h 54m1 stop
$346Delta
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Tue, Sep 16 - Sat, Sep 20
Alaska Airlines Logo
6:09 pm - 12:27 amIAD-MSO
8h 18m1 stop
Alaska Airlines Logo
4:14 pm - 7:33 amMSO-IAD
13h 19m1 stop
$365Alaska Airlines
Find Deal
Fri, Sep 12 - Tue, Sep 16
United Airlines Logo
2:39 pm - 9:22 pmIAD-MSO
8h 43m1 stop
United Airlines Logo
6:30 am - 4:43 pmMSO-IAD
8h 13m1 stop
$367United Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
Hawaiian Airlines Logo
6:09 pm - 12:27 amIAD-MSO
8h 18m1 stop
Hawaiian Airlines Logo
2:14 pm - 12:23 amMSO-IAD
8h 09m1 stop
$370Hawaiian Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Hawaiian Airlines Logo
6:25 am - 3:23 pmIAD-MSO
10h 58m1 stop
Hawaiian Airlines Logo
2:07 pm - 12:23 amMSO-IAD
8h 16m1 stop
$400Hawaiian Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
American Airlines Logo
11:18 am - 11:18 pmIAD-MSO
14h 00m2 stops
American Airlines Logo
1:51 pm - 10:07 amMSO-IAD
18h 16m2 stops
$406American Airlines
Find Deal
Wed, Nov 12 - Tue, Nov 18
United Airlines Logo
2:25 pm - 9:47 pmIAD-MSO
9h 22m1 stop
United Airlines Logo
2:35 pm - 11:15 pmMSO-IAD
6h 40m1 stop
$431United Airlines
Find Deal
Mon, Sep 1 - Fri, Sep 12
American Airlines Logo
6:27 am - 1:01 pmIAD-MSO
8h 34m1 stop
American Airlines Logo
1:51 pm - 10:57 amMSO-IAD
19h 06m1 stop
$484American Airlines
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from Dulles Intl to Missoula 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 Dulles Airport to Missoula?

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

For Washington Dulles Airport to Missoula, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Missoula back to Washington Dulles Airport, the best deals are generally found on Monday, with Sunday being the most expensive.

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

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 Missoula, 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 Missoula is November, where tickets cost $501 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $1,341 and $874 respectively.

Good to know

Low seasonDecember
Cheapest flight$170
Best time to beat the crowds but there is an average 96% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Washington Dulles Airport to Missoula

When to book flights from Dulles Intl to Missoula

Are your dates flexible? Find out the best times to travel from Dulles Intl to Missoula 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 Washington Dulles Airport to Missoula flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Missoula?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Missoula was $170 for a one-way ticket and $340 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Missoula?

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

  • Which aircraft models fly most regularly from Washington Dulles Airport to Missoula?

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

  • Which airline alliances offer flights from Washington Dulles Airport to Missoula?

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Missoula are Alaska Airlines and Delta. With an average price for the route of $502 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $596 and an overall rating of 7.9.

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

    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 Missoula.

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

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

    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 Missoula with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and MSO 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 Washington Dulles Airport to Missoula?

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

Reviews of the top 4 airlines serving from Dulles Intl to Missoula

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Missoula. 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 Missoula? 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 10000 reviews
7.8Comfort
7.1Food
8.5Crew
7.0Entertainment
8.1Boarding
Airline reviews

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

10.0 ExcellentMichael, Aug 2025SEA - BIL
Read more Alaska Airlines reviews

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.

One of the stewardess, Tre, went above and beyond to ensure my comfort!

Food and entertainment aren’t a thing on these regional flights. But it was a smooth flight. Could see gorgeous countryside through the large windows. The earplugs are a nice touch for the prop engines but the hum of the engines did not bother me. Grateful the option exists to easily get from A to B.

It was too cold for the first quarter of the flight.

I loved that we boarded orderly and quickly, that I had an opportunity to check my bag free at the gate, that there was plenty of seat/leg room, there was smooth takeoff and landing, the attendants were pleasant and helpful, and that we arrived on time!!

Despite boarding starting quite late, we actually got to LAX on time. Boarding was easy and orderly. We knew that no screen with entertainment choices would be included on this flight, and that's fine. It was the best price, and we brought all the types of entertainment we needed with us, and appreciated the USB charging ports. What stood out most, was the complimentary liquor. THAT made the biggest difference in our enjoyment of this flight.

The actual flight I was rescheduled onto was from Seattle to Bozeman. The flight itself was fine, but due to delays/air traffic issues i spent the day hanging out at the Seattle airport and had to miss a day of work.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was comfortable with the exit row and great service

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.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

No issues. They did change our gate FOUR times in about 30 minutes which was mildly annoying but the flight was fine.

Great flight. No issues at all. I still think boarding could be more efficient but otherwise, a good experience.

Pretty good. The food was just mediocre, the boarding and crew were good.

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

Sat on the ground in Cincinnati for 50 minutes before deplaning

Everything you need to know for your flight from Dulles Intl to Missoula

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