MSO - IAD

$205 Find Cheap Flights from Missoula to Washington Dulles 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 Missoula to Dulles Intl departing on 3/9. 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. Dulles Intl Airport

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

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

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

Wed, Dec 10 - Sat, Dec 13
Hawaiian Airlines Logo
6:29 am - 4:36 pmMSO-IAD
8h 07m1 stop
Hawaiian Airlines Logo
7:34 am - 3:32 pmIAD-MSO
9h 58m1 stop
$371Hawaiian Airlines
Find Deal
Wed, Dec 10 - Sat, Dec 13
Delta Logo
7:45 am - 6:12 pmMSO-IAD
8h 27m1 stop
Delta Logo
3:00 pm - 9:53 pmIAD-MSO
8h 53m1 stop
$379Delta
Find Deal
Wed, Dec 10 - Sat, Dec 13
Delta Logo
7:45 am - 6:12 pmMSO-IAD
8h 27m1 stop
Delta Logo
9:00 am - 5:36 pmIAD-MSO
10h 36m2 stops
$384Delta
Find Deal
Sun, Mar 1 - Sat, Mar 7
Alaska Airlines Logo
6:30 pm - 5:55 amMSO-IAD
9h 25m1 stop
Alaska Airlines Logo
6:55 pm - 12:52 pmIAD-MSO
19h 57m1 stop
$412Alaska Airlines
Find Deal
Tue, Nov 11 - Thu, Nov 13
United Airlines Logo
2:35 pm - 11:15 pmMSO-IAD
6h 40m1 stop
United Airlines Logo
2:25 pm - 9:47 pmIAD-MSO
9h 22m1 stop
$441United Airlines
Find Deal
Sun, Mar 1 - Sat, Mar 7
Alaska Airlines Logo
2:35 pm - 5:55 amMSO-IAD
13h 20m1 stop
Alaska Airlines Logo
7:00 am - 12:09 pmIAD-MSO
31h 09m2 stops
$509Alaska Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
United Airlines Logo
2:35 pm - 7:27 amMSO-IAD
14h 52m2 stops
United Airlines Logo
8:25 am - 4:01 pmIAD-MSO
9h 36m1 stop
$619United Airlines
Find Deal
Mon, Nov 24 - Fri, Nov 28
Frontier Logo
1:04 pm - 7:45 amMSO-IAD
40h 41m2 stops
Frontier Logo
6:55 am - 6:06 pmIAD-MSO
13h 11m2 stops
$743Frontier
Find Deal
Sun, Mar 1 - Sat, Mar 7
American Airlines Logo
1:24 pm - 11:59 pmMSO-IAD
8h 35m2 stops
American Airlines Logo
9:12 am - 9:45 pmIAD-MSO
14h 33m2 stops
$794American Airlines
Find Deal
Sat, Dec 13 - Sun, Dec 21
American Airlines Logo
7:00 am - 7:31 pmMSO-IAD
10h 31m2 stops
American Airlines Logo
6:05 am - 9:24 pmIAD-MSO
17h 19m1 stop
$804American Airlines
Find Deal

Everything you should know

Top airlines
Hawaiian Airlines
Cheapest • from $371 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$371
Typical prices: $499-$661
Hawaiian Airlines
Wed 12/10Sat 12/13
MSO - IAD • 1 stop
Cheapest one-way
$205
Alaska Airlines
Mon 3/9
MSO - IAD • 1 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 Dulles Intl!
Booking Insights

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

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

How much is a round-trip flight from Missoula to Washington, D.C. Dulles Intl 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 Missoula to Washington, D.C. Dulles Intl Airport departing in December.

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

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

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

Good to know

Low seasonJune
Cheapest flight$205
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Missoula to Washington Dulles Airport

When to book flights from Missoula to Dulles Intl

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

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

    In the last 3 days, the lowest price for a flight from Missoula to Washington, D.C. Dulles Intl Airport was $205 for a one-way ticket and $371 for a round-trip.

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

    A passport is not required to fly from Missoula to Washington Dulles Airport.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Missoula to Washington, D.C. are Delta and United Airlines. With an average price for the route of $410 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 $570 and an overall rating of 7.4.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Missoula 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 Missoula to Washington Dulles 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 Washington Dulles Airport with an airline and back to Missoula with another airline. Booking your flights between Missoula and IAD 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 Missoula to Washington Dulles 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 Washington Dulles Airport from Missoula up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Missoula to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Missoula 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 Missoula to Dulles Intl? 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 7992 reviews
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

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.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

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.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

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.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

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

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