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Dulles Intl

$180+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — IAD
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap 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 septiembre 11, 2025.

Round-trip from

$361
(United Airlines)

One-way from

$181
(American Airlines)

Popular in

December

Cheapest in

June

Average price

$489
From Missoula Johnson-Bell Field to Washington, D.C. Dulles Intl
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One-way flight from Missoula Johnson-Bell Field to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 13% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 septiembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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. 12/46:15 amMSO - IAD
1 stop8h 15mUnited Airlines
mar. 12/94:00 pmIAD - MSO
1 stop7h 18mUnited Airlines
Deal found 9/10$361
This Delta deal was found by Cheapflights users on 9/11. 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.
sáb. 10/251:07 pmMSO - IAD
1 stop8h 26mDelta
jue. 10/306:15 amIAD - MSO
1 stop8h 12mDelta
Deal found 9/11$367
This Delta deal was found by Cheapflights users on 9/10. 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.
sáb. 11/13:00 pmMSO - IAD
1 stop6h 33mDelta
sáb. 11/83:00 pmIAD - MSO
1 stop9h 12mDelta
Deal found 9/10$373
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/284:12 pmMSO - IAD
1 stop12h 11mAlaska Airlines
sáb. 11/87:43 amIAD - MSO
1 stop9h 41mAlaska Airlines
Deal found 9/9$382
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/196:32 amMSO - IAD
1 stop8h 08mAlaska Airlines
mié. 12/37:35 amIAD - MSO
1 stop9h 57mAlaska Airlines
Deal found 9/10$385
This Hawaiian Airlines deal was found by Cheapflights users on 9/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/32:14 pmMSO - IAD
1 stop8h 09mHawaiian Airlines
mar. 10/76:25 amIAD - MSO
1 stop7h 53mHawaiian Airlines
Deal found 9/11$386
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/281:31 pmMSO - IAD
1 stop7h 20mAmerican Airlines
sáb. 11/86:24 amIAD - MSO
2 stops15h 42mAmerican Airlines
Deal found 9/9$392
This Delta deal was found by Cheapflights users on 9/10. 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.
jue. 12/48:00 amMSO - IAD
2 stops11h 30mDelta
mar. 12/95:03 pmIAD - MSO
2 stops9h 32mDelta
Deal found 9/10$396
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/186:37 amMSO - IAD
1 stop15h 46mAlaska Airlines
mié. 12/37:35 amIAD - MSO
1 stop9h 57mAlaska Airlines
Deal found 9/10$402
This Delta deal was found by Cheapflights users on 9/9. 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.
sáb. 10/251:07 pmMSO - IAD
1 stop8h 26mDelta
vie. 10/3112:27 pmIAD - MSO
2 stops11h 13mDelta
Deal found 9/9$407
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/142:07 pmMSO - IAD
1 stop8h 16mAlaska Airlines
jue. 11/277:38 amIAD - MSO
1 stop9h 59mAlaska Airlines
Deal found 9/10$410

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 septiembre 11, 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. 12/10

2:35 pm-11:15 pm

1 stop6h 40m

Washington, D.C. Dulles Intl

lun. 12/15

4:00 pm-9:18 pm

1 stop7h 18m

$361

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

sáb. 10/25

1:07 pm-11:33 pm

1 stop8h 26m

Washington, D.C. Dulles Intl

jue. 10/30

6:15 am-12:27 pm

1 stop8h 12m

$367

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

vie. 10/24

2:07 pm-12:23 am

1 stop8h 16m

Washington, D.C. Dulles Intl

mié. 10/29

7:43 am-3:24 pm

1 stop9h 41m

$386

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

sáb. 12/6

6:29 am-4:36 pm

1 stop8h 07m

Washington, D.C. Dulles Intl

mar. 12/9

7:35 am-3:32 pm

1 stop9h 57m

$386

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

jue. 11/13

2:35 pm-11:15 pm

1 stop6h 40m

Washington, D.C. Dulles Intl

dom. 11/16

2:25 pm-9:47 pm

1 stop9h 22m

$386

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

sáb. 12/6

6:29 am-4:36 pm

1 stop8h 07m

Washington, D.C. Dulles Intl

mar. 12/9

7:35 am-3:32 pm

1 stop9h 57m

$386

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

vie. 10/3

4:14 pm-7:33 am

1 stop13h 19m

Washington, D.C. Dulles Intl

mar. 10/7

6:25 am-3:23 pm

1 stop10h 58m

$386

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

mar. 10/28

1:31 pm-10:51 pm

1 stop7h 20m

Washington, D.C. Dulles Intl

sáb. 11/8

6:24 am-8:06 pm

2 stops15h 42m

$392

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

jue. 10/16

2:07 pm-12:23 am

1 stop8h 16m

Washington, D.C. Dulles Intl

mié. 12/3

7:35 am-3:32 pm

1 stop9h 57m

$410

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

vie. 10/24

2:07 pm-12:23 am

1 stop8h 16m

Washington, D.C. Dulles Intl

mar. 10/28

7:43 am-3:24 pm

1 stop9h 41m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 23 results
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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.

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 septiembre 11, 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
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 United Airlines, Delta, and Hawaiian Airlines fly from Missoula to Washington, D.C. Dulles Intl Airport in about 6h 40m. The time it takes to get you to your destination can typically vary by up to 1h 46m. 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 34% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Missoula to Washington, D.C. Dulles Intl Airport one-way?

    $180 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $181 and $181, respectively.

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Missoula to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Missoula to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$450FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$404Average$592FlexibilityNo cancel feeOn-time69%

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