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Dulles Intl

$266+ Cheap flights from Missoula (MSO) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — IAD
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Missoula to Dulles Intl

Cheapest flights from Missoula to Dulles Intl
Explore the most affordable flight options available from Missoula to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/216:00 amMSO - IAD
1 stop7h 34mUnited Airlines
mié. 12/314:00 pmIAD - MSO
1 stop7h 41mUnited Airlines
Deal found 12/10$725
This Delta deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/127:45 amMSO - IAD
1 stop8h 27mDelta
dom. 12/212:21 pmIAD - MSO
1 stop8h 19mDelta
Deal found 12/11$800
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/256:00 amMSO - IAD
1 stop8h 39mUnited Airlines
lun. 12/295:40 pmIAD - MSO
2 stops30h 01mUnited Airlines
Deal found 12/10$956
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/216:00 amMSO - IAD
1 stop7h 34mUnited Airlines
lun. 12/294:00 pmIAD - MSO
1 stop7h 41mUnited Airlines
Deal found 12/10$1,096
This Delta deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/215:20 amMSO - IAD
2 stops10h 41mDelta
mié. 12/3112:58 pmIAD - MSO
2 stops12h 24mDelta
Deal found 12/10$1,109

Find flight deals from Missoula to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$361
(Delta)

One-way from

$266
(Alaska Airlines)

Popular in

October

Cheapest in

June

Average price

$476
Provider with most accurate pricing for Missoula Johnson-Bell Field-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Washington, D.C. Dulles Intl flights.
Search Deals
From Missoula Johnson-Bell Field to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Missoula Johnson-Bell Field to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 12, 2025.
Use the filters below to find and compare flights from Missoula to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Missoula

Fly to

Dulles Intl

Route

Depart

Return

Price

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

mié. 1/21

6:23 am-4:26 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

lun. 1/26

6:04 pm-12:23 pm

1 stop20h 19m

$361

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

mar. 1/13

12:40 pm-11:48 pm

1 stop9h 08m

Washington, D.C. Dulles Intl

mar. 1/20

2:15 pm-8:14 pm

1 stop7h 59m

$361

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

mié. 2/11

1:25 pm-11:48 pm

1 stop8h 23m

Washington, D.C. Dulles Intl

mar. 2/24

7:05 am-12:26 pm

1 stop7h 21m

$361

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

mié. 1/21

1:25 pm-11:48 pm

1 stop8h 23m

Washington, D.C. Dulles Intl

lun. 1/26

5:26 pm-12:28 am

2 stops9h 02m

$366

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

vie. 1/9

6:23 am-4:26 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

mar. 1/20

6:04 pm-3:31 pm

1 stop23h 27m

$374

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

lun. 1/12

4:20 pm-4:26 pm

1 stop22h 06m

Washington, D.C. Dulles Intl

mar. 1/20

6:04 pm-12:23 pm

1 stop20h 19m

$374

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

mar. 1/13

6:23 am-4:26 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

sáb. 1/17

6:04 pm-3:31 pm

1 stop23h 27m

$375

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

mié. 1/28

4:20 pm-4:26 pm

1 stop22h 06m

Washington, D.C. Dulles Intl

sáb. 1/31

6:04 pm-12:23 pm

1 stop20h 19m

$375

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

jue. 2/12

1:16 pm-11:46 pm

1 stop8h 30m

Washington, D.C. Dulles Intl

mar. 2/24

7:05 am-12:26 pm

1 stop7h 21m

$386

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

sáb. 1/10

2:37 pm-11:22 pm

1 stop6h 45m

Washington, D.C. Dulles Intl

sáb. 1/17

10:02 am-4:02 pm

1 stop8h 00m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 14 results
1
2

Compare providers for flights from Missoula to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Missoula to Dulles Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Missoula-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Missoula-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Missoula-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Missoula-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Missoula to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Missoula with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missoula to Washington, D.C. Dulles Intl Airport

How much does it cost to fly round-trip from Missoula to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated diciembre 12, 2025.
Read through reviews of airlines operating flights from Missoula to Washington, D.C. Dulles Intl Airport, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Missoula to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Missoula to Washington, D.C. Dulles Intl?

    Missoula Johnson-Bell Field (MSO), located 5.5 mi from the city center, is the airport you fly out of when you book flights from Missoula to Washington, D.C. Dulles Intl. 2 airlines have flights from Johnson-Bell Field to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Missoula Johnson-Bell Field to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

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

    Airlines like Alaska Airlines and Delta fly from Missoula to Washington, D.C. Dulles Intl Airport in about 8h 03m. The time it takes to get you to your destination can typically vary by up to 1h 05m. Missoula and Washington, D.C. Dulles Intl Airport are separated by a distance of 1913 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Missoula to Washington, D.C. Dulles Intl Airport round-trip?

    Delta, at $338, was found to be the cheapest airline from Missoula to Washington, D.C. Dulles Intl Airport. An alternate airline flying to your destination would be United Airlines. Delta is currently priced 31% below the average price you’ll pay for this route.

  • Can I find deals for flights from Missoula to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Missoula to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missoula to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missoula to Dulles Intl.

  • Can I find deals for business class flights from Missoula to Dulles Intl?

    Yes. Cheapflights offers flight deals from Missoula to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Rockville
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton

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Top 2 airlines flying from Missoula to Dulles Intl

Discover the top 2 airlines that operate flights from Missoula to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$410FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$360Average$518FlexibilityNo cancel feeOn-time69%

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