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CA $246 Cheap Flights from Washington (IAD) to Missoula (MSO)

View CA $246 flight on Tue, Sep 1, 2026Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Missoula Intl. Airport (MSO)

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Cheap flights from Washington (IAD) to Missoula (MSO)

Prices were available within the past 7 days and start at CA $246 for one-way flights and CA $491 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $491 Roundtrip, found 3 days ago
CA $491
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $491 found 3 days ago
Alaska Airlines
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $526 Roundtrip, found 3 days ago
CA $526
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $526 found 3 days ago
American Airlines
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $540 Roundtrip, found 3 days ago
CA $540
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $540 found 3 days ago
Alaska Airlines
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $576 Roundtrip, found 3 days ago
CA $576
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $576 found 3 days ago
Alaska Airlines
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $620 Roundtrip, found 3 days ago
CA $620
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $620 found 3 days ago
Delta
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $661 Roundtrip, found 3 days ago
CA $661
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $661 found 3 days ago
American Airlines
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $662 Roundtrip, found 3 days ago
CA $662
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $662 found 3 days ago
Alaska Airlines
Tue, Sep 15 - Sat, Sep 19
IAD
Washington
MSO
Missoula
CA $675 Roundtrip, found 3 days ago
CA $675
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 15 from Washington to Missoula, returning Sat, Sep 19, priced at CA $675 found 3 days ago
Alaska Airlines
Tue, Sep 15 - Sat, Sep 19
IAD
Washington
MSO
Missoula
CA $683 Roundtrip, found 3 days ago
CA $683
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 15 from Washington to Missoula, returning Sat, Sep 19, priced at CA $683 found 3 days ago
Alaska Airlines
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $696 Roundtrip, found 3 days ago
CA $696
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $696 found 3 days ago
Delta
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $710 Roundtrip, found 3 days ago
CA $710
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $710 found 3 days ago
Delta
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $829 Roundtrip, found 3 days ago
CA $829
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $829 found 3 days ago
Delta
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $832 Roundtrip, found 3 days ago
CA $832
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $832 found 3 days ago
Alaska Airlines
Tue, Sep 15 - Sat, Sep 19
IAD
Washington
MSO
Missoula
CA $863 Roundtrip, found 3 days ago
CA $863
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 15 from Washington to Missoula, returning Sat, Sep 19, priced at CA $863 found 3 days ago
Delta
Tue, Sep 1 - Sat, Sep 5
IAD
Washington
MSO
Missoula
CA $900 Roundtrip, found 3 days ago
CA $900
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 1 from Washington to Missoula, returning Sat, Sep 5, priced at CA $900 found 3 days ago

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) cost?
You can find one-way and return flights from IAD to MSO with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when IAD to MSO ticket fares go up or down.
What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
The cheapest months to fly from IAD to MSO are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
Enter IAD to MSO and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
American Airlines is one of the cheapest airlines offering connecting return flights from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.), with tickets starting from around CA$497 for flights that can be booked for departure within the next year. These flights typically include a layover in Charlotte-Douglas Intl. (CLT). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
There are approximately 43 connecting flights per day from Washington Dulles International (IAD) to Missoula International (MSO). Some common connection points include Seattle - Tacoma International (SEA), San Diego International (SAN), and Denver International (DEN).
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
The earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) typically departs around 5:00 AM local time. This flight is operated by American Airlines. This is a seasonal service, active only in July. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
You'll generally find the most flights from Washington Dulles Intl. (IAD) to Missoula Intl. (MSO) on a Wednesday, with around 28 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Alaska Airlines, and Delta. Flight schedules are quite consistent throughout the week, so you'll have plenty of options regardless of the day you choose to fly.
What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
The most popular departure times for flights from Washington Dulles Intl. (IAD) to Missoula Intl. (MSO) are in the morning, from 6am to 9am. Many major carriers, including United, Alaska Airlines and Delta, offer flights during this window. Many travelers prefer this because it allows for an early start to their journey, often leading to an earlier arrival at their destination.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
There are no nonstop flights from Washington Dulles Intl. (IAD) to Missoula Intl. (MSO). For flights with one stop, you can expect the journey to take around 7 hours 18 minutes. Flights with two or more stops typically take longer, averaging about 10 hours 48 minutes. The distance between these two airports is approximately 3080 kilometres. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and weather conditions.
Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
You can fly business class or first class between IAD and MSO. First class cabins are available on:
  • Alaska Airlines
  • Delta
  • United
  • American Airlines
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Missoula, MT (MSO) from Washington, DC (IAD)?
If you're planning to travel to Missoula from Washington Dulles Intl. (IAD), you can fly directly into Missoula Intl. (MSO). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), San Diego Intl. (SAN), or Hartsfield-Jackson Atlanta Intl. (ATL) before reaching Missoula. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Missoula, MT (MSO-Missoula Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Missoula Intl.
Roundtrip price
CA $490
Distance
3061 km

Book with confidence

Chantilly to Missoula Flights

The easy way to book your flights from Washington to Missoula 

With Expedia, it’s simple to find and book flights to Missoula from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Missoula Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to Missoula today, tomorrow, or this week.  

 

Save dollars with cheap flights from Washington Dulles Intl., IAD to Missoula Intl., MSO 

Sort your search results by price to find great deals on your flight from Washington to Missoula—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Missoula from Washington currently is just CA $491 rising to CA $900.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Missoula  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Missoula from Washington 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Missoula with Expedia today.

Chantilly to Missoula Flights

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