MSO - IAD

$169 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 5/9. 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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Everything you should know

Cheapest round-trip
$317
Typical prices: $504-$664
Alaska Airlines
Tue 4/21Tue 4/28
MSO - IAD • 1 stop
Cheapest one-way
$169
Delta
Sat 5/9
MSO - IAD • 1 stop
Top airlines
Cheapest • from $317 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Missoula and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $333 (round-trip)
Shortest trip • 6h 47m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 34% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
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

Tue, Apr 21 - Tue, Apr 28
Alaska Airlines Logo
1:53 pm - 5:40 am
MSO
-
IAD
13h 47m
1 stop
Alaska Airlines Logo
7:10 am - 2:59 pm
IAD
-
MSO
9h 49m
1 stop
$317Alaska Airlines
Tue, Apr 14 - Sat, Apr 18
Delta Logo
1:40 pm - 11:44 pm
MSO
-
IAD
8h 04m
1 stop
Delta Logo
12:35 pm - 8:02 pm
IAD
-
MSO
9h 27m
1 stop
$337Delta
Tue, Apr 14 - Sat, Apr 18
Delta Logo
5:20 am - 5:57 pm
MSO
-
IAD
10h 37m
2 stops
Delta Logo
12:35 pm - 8:02 pm
IAD
-
MSO
9h 27m
1 stop
$342Delta
Sat, Apr 25 - Tue, Apr 28
Alaska Airlines Logo
1:59 pm - 12:09 am
MSO
-
IAD
8h 10m
1 stop
Alaska Airlines Logo
7:10 am - 2:59 pm
IAD
-
MSO
9h 49m
1 stop
$343Alaska Airlines
Sat, Apr 25 - Tue, Apr 28
Alaska Airlines Logo
1:59 pm - 12:09 am
MSO
-
IAD
8h 10m
1 stop
Alaska Airlines Logo
7:10 am - 2:59 pm
IAD
-
MSO
9h 49m
1 stop
$348Alaska Airlines
Tue, Jun 23 - Mon, Jun 29
American Airlines Logo
4:44 pm - 4:48 am
MSO
-
IAD
10h 04m
1 stop
American Airlines Logo
6:10 am - 4:14 pm
IAD
-
MSO
12h 04m
1 stop
$375American Airlines
Tue, Jun 23 - Mon, Jun 29
American Airlines Logo
4:44 pm - 4:48 am
MSO
-
IAD
10h 04m
1 stop
American Airlines Logo
6:18 am - 4:14 pm
IAD
-
MSO
11h 56m
2 stops
$380American Airlines
Fri, May 29 - Tue, Jun 2
American Airlines Logo
4:44 pm - 4:48 am
MSO
-
IAD
10h 04m
1 stop
American Airlines Logo
6:10 am - 4:14 pm
IAD
-
MSO
12h 04m
1 stop
$385American Airlines
Mon, Apr 13 - Sat, Apr 18
Delta Logo
6:18 pm - 9:15 am
MSO
-
IAD
12h 57m
2 stops
Delta Logo
12:35 pm - 8:02 pm
IAD
-
MSO
9h 27m
1 stop
$390Delta
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
2:38 pm - 11:34 pm
MSO
-
IAD
6h 56m
1 stop
United Airlines Logo
9:55 am - 4:06 pm
IAD
-
MSO
8h 11m
1 stop
$394United Airlines
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 April.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Missoula to Washington, D.C. Dulles Intl Airport, 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 Missoula to Washington, D.C. Dulles Intl Airport is June, where tickets cost $339 (return) on average. On the other hand, the most expensive months are March and October, where the average cost of round-trip tickets is $919 and $635 respectively.

Good to know

Low seasonMarch
Cheapest flight$169
Best time to beat the crowds but there is an average 79% increase in price.
Most popular time to fly and prices are also 10% 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 $169 for a one-way ticket and $317 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?

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

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

    The two airlines most popular with KAYAK users for flights from Missoula to Washington, D.C. are Delta and Alaska Airlines. With an average price for the route of $410 and an overall rating of 7.9, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $495 and an overall rating of 7.9.

  • 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 3 airlines serving 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
Alaska AirlinesOverall score based on 12058 reviews
8.5Crew
7.0Food
7.8Comfort
7.0Entertainment
8.1Boarding
Airline reviews

They changed the flight time from 4:00 to 1:50. We missed the flight because we did not know. We were not entitled to any sort of refund.

2.0 MediocreAnonymous, Mar 2026
FCA - SEA
Read more Alaska Airlines reviews

They changed the flight time from 4:00 to 1:50. We missed the flight because we did not know. We were not entitled to any sort of refund.

Easy check-in. Good customer service. Had to check carry-on due to lack of overhead space. Wish the airplane was configured with more overhead area so this doesn't usually happen.

This was my first trip with Alaska Airlines (round trip DCA to San Diego). Despite a slight delay on the return flight, I feel compelled to post a RAVE review! I cannot praise the airline and the crew enough! Everyone was kind, professional, and courteous, every step of the way- excellent service, snacks, and entertainment! On both legs of the trip I inquired whether there were any free seating upgrades and my request were granted BOTH times! I’ve flown on other airlines where they won’t do that, even when those premium seats are empty. As a customer service professional myself, I can say I left my experience feeling like a valued customer and not just a number. I NEVER expected to praise an airline lol I’ll definitely go out of my way to fly with Alaska on future trips. Thank you for such an awesome experience!

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

I think Alaska should start including free meals on these longer trips.

Departed on time and had an efficient boarding process. The inflight wifi was not working on one of the flights.

No communication with delayed and canceled flights. Completely in the dark for the whole experience.

Honestly the bathroom cabinet under sink fell out and was completely broken. The floor or walkway was worn out and it smelled wierd. But the seats were terrible for comfort. I truly hope that my trip home in February is better.

We sat on the tarmac for so long when we got to SeaTac that half the plane missed their connections.

Poor, no one with Alaska Airlines is in a hurry to do anything. Slow, lack of intent, inconsistent.

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

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

Information on your arrival and departure airports