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Dulles Intl

$171+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — IAD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$289
(American Airlines)

One-way from

$171
(United Airlines)

Popular in

November

Cheapest in

June

Average price

$339
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. 17% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:51 pmMSO - IAD
1 stop6h 58mAmerican Airlines
Sun 9/286:25 amIAD - MSO
1 stop8h 35mAmerican Airlines
Deal found 6/11$289
This Delta deal was found by Cheapflights users on 6/11. 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.
Fri 10/31:50 pmMSO - IAD
1 stop7h 44mDelta
Tue 10/75:00 pmIAD - MSO
2 stops8h 52mDelta
Deal found 6/11$345
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:40 pmMSO - IAD
1 stop10h 52mAlaska Airlines
Tue 10/76:25 amIAD - MSO
1 stop10h 55mAlaska Airlines
Deal found 6/11$365
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 6/252:23 pmMSO - IAD
1 stop6h 27mUnited Airlines
Sun 6/296:35 amIAD - MSO
1 stop7h 03mUnited Airlines
Deal found 6/10$401
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1412:40 pmMSO - IAD
2 stops15h 54mFrontier
Thu 7/177:25 pmIAD - MSO
2 stops18h 29mFrontier
Deal found 6/10$585
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/186:35 amMSO - IAD
1 stop8h 38mHawaiian Airlines
Wed 7/239:00 amIAD - MSO
1 stop10h 56mHawaiian Airlines
Deal found 6/11$588

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 June 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

Wed 9/24

1:51 pm-10:49 pm

1 stop6h 58m

Washington, D.C. Dulles Intl

Sun 9/28

6:25 am-1:00 pm

1 stop8h 35m

$289

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Fri 10/3

1:50 pm-11:34 pm

1 stop7h 44m

Washington, D.C. Dulles Intl

Tue 10/7

5:00 pm-11:52 pm

2 stops8h 52m

$345

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Fri 10/3

6:40 pm-7:32 am

1 stop10h 52m

Washington, D.C. Dulles Intl

Tue 10/7

6:25 am-3:20 pm

1 stop10h 55m

$365

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Wed 6/25

2:23 pm-10:50 pm

1 stop6h 27m

Washington, D.C. Dulles Intl

Sun 6/29

6:35 am-11:38 am

1 stop7h 03m

$401

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Mon 7/14

12:40 pm-6:34 am

2 stops15h 54m

Washington, D.C. Dulles Intl

Thu 7/17

7:25 pm-11:54 am

2 stops18h 29m

$585

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Fri 7/18

6:35 am-5:13 pm

1 stop8h 38m

Washington, D.C. Dulles Intl

Wed 7/23

9:00 am-5:56 pm

1 stop10h 56m

$588

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Tue 7/22

4:23 pm-5:18 am

1 stop10h 55m

$171

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Wed 7/23

6:24 pm-8:59 am

2 stops12h 35m

$176

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Wed 6/25

7:03 am-5:35 pm

1 stop8h 32m

$201

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Mon 6/23

10:07 pm-6:30 am

1 stop30h 23m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 12 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.

Cheapflights Insights

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Missoula to Washington, D.C.. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    American Airlines, at $289, was found to be the cheapest airline from Missoula to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Delta and Alaska Airlines. American Airlines is currently priced 47% 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?

    $171 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $176 and $201, 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 $309). Flying from Missoula to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 Missoula?

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$478FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$434Average$605FlexibilityNo cancel feeOn-time69%

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