MSO - IAD

$249 Find Cheap Flights from Missoula to Washington Dulles Airport - Compare and Save

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 8/24. 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
$359
Typical prices: $635-$575
Delta
Mon 10/5Thu 10/8
MSO - IAD • 2 stops
Cheapest one-way
$249
United Airlines
Mon 8/24
MSO - IAD • 1 stop
Top airlines
Cheapest • from $359 (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 $388 (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

Mon, Oct 5 - Thu, Oct 8
Delta Logo
6:22 pm - 9:11 am
MSO
-
IAD
12h 49m
2 stops
Delta Logo
10:05 am - 8:12 pm
IAD
-
MSO
12h 07m
2 stops
$359Delta
Tue, Oct 13 - Fri, Oct 16
Alaska Airlines Logo
2:06 pm - 11:59 pm
MSO
-
IAD
7h 53m
1 stop
Alaska Airlines Logo
9:35 am - 9:59 pm
IAD
-
MSO
14h 24m
1 stop
$399Alaska Airlines
Thu, Oct 15 - Mon, Oct 19
Alaska Airlines Logo
3:46 pm - 5:40 am
MSO
-
IAD
11h 54m
1 stop
Alaska Airlines Logo
6:24 am - 9:59 pm
IAD
-
MSO
17h 35m
2 stops
$415Alaska Airlines
Thu, Oct 15 - Mon, Oct 19
Delta Logo
6:10 pm - 9:11 am
MSO
-
IAD
13h 01m
2 stops
Delta Logo
7:15 am - 12:36 pm
IAD
-
MSO
7h 21m
1 stop
$419Delta
Thu, Oct 15 - Mon, Oct 19
Delta Logo
6:10 pm - 9:11 am
MSO
-
IAD
13h 01m
2 stops
Delta Logo
7:00 am - 5:27 pm
IAD
-
MSO
12h 27m
2 stops
$424Delta
Thu, Oct 15 - Mon, Oct 19
Alaska Airlines Logo
3:46 pm - 5:40 am
MSO
-
IAD
11h 54m
1 stop
Alaska Airlines Logo
9:35 am - 9:59 pm
IAD
-
MSO
14h 24m
1 stop
$440Alaska Airlines
Wed, Nov 11 - Sat, Nov 14
United Airlines Logo
2:27 pm - 11:13 pm
MSO
-
IAD
6h 46m
1 stop
United Airlines Logo
4:08 pm - 9:26 pm
IAD
-
MSO
7h 18m
1 stop
$449United Airlines
Thu, Sep 3 - Mon, Sep 7
Alaska Airlines Logo
7:15 am - 4:44 pm
MSO
-
IAD
7h 29m
1 stop
Alaska Airlines Logo
7:00 am - 3:17 pm
IAD
-
MSO
10h 17m
1 stop
$459Alaska Airlines
Wed, Nov 11 - Sat, Nov 14
Alaska Airlines Logo
12:55 pm - 4:14 pm
MSO
-
IAD
25h 19m
2 stops
Alaska Airlines Logo
7:46 am - 3:34 pm
IAD
-
MSO
9h 48m
1 stop
$461Alaska Airlines
Tue, Oct 13 - Fri, Oct 16
Alaska Airlines Logo
2:06 pm - 11:59 pm
MSO
-
IAD
7h 53m
1 stop
Alaska Airlines Logo
7:24 pm - 9:59 pm
IAD
-
MSO
28h 35m
2 stops
$466Alaska 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 October.

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 July, where tickets cost $360 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $919 and $689 respectively.

Good to know

Low seasonMarch
Cheapest flight$249
Best time to beat the crowds but there is an average 68% increase in price.
Most popular time to fly and prices are also 12% 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 5 days, the lowest price for a flight from Missoula to Washington, D.C. Dulles Intl Airport was $249 for a one-way ticket and $359 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, oneworld, 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., Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Missoula to Washington, D.C. are Alaska Airlines and Delta. With an average price for the route of $484 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $496 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 12517 reviews
7.8Comfort
8.5Crew
7.1Food
8.1Boarding
7.0Entertainment
Airline reviews

A five hour nonstop flight traveling over a few time zones and over the dinner hour and you get a small bag of pretzels. And no screens to watch movies. I

4.0 OkayDean, Jun 2026
SEA - DCA
Read more Alaska Airlines reviews

A five hour nonstop flight traveling over a few time zones and over the dinner hour and you get a small bag of pretzels. And no screens to watch movies. I

Missoula is a great airport. Desk and gate crews were very helpful and friendly

Agent could not provide me a boarding pass for the second leg of my flights - yet with a partner airline. Not understood.

This was my second time flying Alaska Airline in the 1st Class cabin. Everything was fine with the exception of the food and entertainment. The food was just ok but not what I was expecting from 1st Class. A BBQ pork sandwich and baked potato. There wasnt any in-flight entertainment. I found that odd since it was a coast to coast flight Seattle to Dulles. My sister flew 1st Class on Delta on a shorter flight ( Seattle to Cincinnati) and had an awesome meal and in-flight entertainment. I typically fly Delta but there wasn’t a flight with times that fit my schedule. I am by no means a primary donna. But when my upgrade cost over $900…I didn’t use any reward miles…I was expecting more than what I got. I will never fly Alaska Airline 1st Class again. I will stick with Delta for all my travel needs whether it’s in 1st Class or coach.

Very easy, stress free airline. Was a wonderful experience. Will use again

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.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

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

Information on your arrival and departure airports