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

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Missoula is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $288 on this airline. Additional options worth looking into are Alaska Airlines and American Airlines, starting at $289 and $294 round-trip. You may be able to fly from Washington, D.C. Dulles Intl Airport to Missoula for 57% less than the average price by searching for these airlines.

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

$144 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 Delta and American Airlines, with prices starting from $150 and $170, respectively.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Missoula?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Missoula flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Missoula ranges from 0.7 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Missoula when rainfall is around 0.7 in.

If weather is an important factor for your trip to Missoula, 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 68.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.8 F).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Missoula?

Consider American Airlines, Alaska Airlines or Delta when booking your flight. These represent the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Missoula.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Missoula?

Travelers have found that booking a Monday departure is the best way to save up to 47% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Missoula?

Travelers have found it’s best to book a flight 20 days in advance to save up to 480% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 20 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Dulles Intl Airport to Missoula 1-2 weeks in advance for as low as $530, or $761 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Missoula?

The best pricing can be found in the month of November. Prices to Missoula from Washington, D.C. Dulles Intl Airport average $531. You can even find prices in November for less than $531, as users have found deals to Missoula from as low as $352. The month of January appears to be one of the more expensive times to travel to Missoula from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 43%.

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

For a flight from Washington, D.C. Dulles Intl to Missoula, you will be flying into Johnson-Bell Field. Missoula Johnson-Bell Field (MSO) is just 5.5 mi from the center of the city. Johnson-Bell Field is the only Missoula airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 4 airlines have flights to Missoula Johnson-Bell Field from Washington, D.C. Dulles Intl on a regular basis.

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

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

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

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

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

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

$144+ Flights from Washington, D.C. Dulles Intl Airport to Missoula

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Cheap flight deals from Dulles Intl to Missoula

Round-trip from	$288 (Hawaiian Airlines)
One-way from	$144 (Alaska Airlines)
Popular in	December
Cheapest in	November
Average price	$579

From Washington, D.C. Dulles Intl to Missoula Johnson-Bell Field

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One-way flight from Washington, D.C. Dulles Intl to Missoula Johnson-Bell Field

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Highest demand for flights based on searches. 17% potential increase in price ($139 potential increase over avg. RT price).

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Cheapest flight prices on average. 10% potential price decrease ($61 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Dulles Intl to Missoula

Cheapest flights from Dulles Intl to Missoula
Explore the most affordable flight options available from Dulles Intl to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Tue 9/169:00 amIAD - MSO

1 stop8h 18mHawaiian Airlines

Tue 9/236:35 amMSO - IAD

1 stop8h 34mHawaiian Airlines

Deal found 7/26

$288

Mon 9/159:00 amIAD - MSO

1 stop8h 18mAlaska Airlines

Wed 9/242:14 pmMSO - IAD

1 stop8h 09mAlaska Airlines

Deal found 7/26

$289

Tue 9/166:25 amIAD - MSO

1 stop8h 35mAmerican Airlines

Wed 10/16:40 amMSO - IAD

2 stops10h 11mAmerican Airlines

Deal found 7/27

$294

Tue 9/167:05 pmIAD - MSO

1 stop6h 41mDelta

Thu 9/253:33 pmMSO - IAD

1 stop6h 05mDelta

Deal found 7/26

$314

Mon 8/186:35 amIAD - MSO

1 stop7h 03mUnited Airlines

Mon 8/2510:38 amMSO - IAD

1 stop6h 35mUnited Airlines

Deal found 7/27

$431

Best flights from Dulles Intl to Missoula
Discover carefully curated flight deals from Dulles Intl to Missoula that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2025.

Tue 9/169:00 amIAD - MSO

1 stop8h 18mHawaiian Airlines

Tue 9/236:35 amMSO - IAD

1 stop8h 34mHawaiian Airlines

Deal found 7/26

$288

Mon 9/159:00 amIAD - MSO

1 stop8h 18mAlaska Airlines

Wed 9/242:14 pmMSO - IAD

1 stop8h 09mAlaska Airlines

Deal found 7/26

$289

Tue 9/166:25 amIAD - MSO

1 stop8h 35mAmerican Airlines

Wed 10/16:40 amMSO - IAD

2 stops10h 11mAmerican Airlines

Deal found 7/27

$294

Tue 9/167:05 pmIAD - MSO

1 stop6h 41mDelta

Thu 9/253:33 pmMSO - IAD

1 stop6h 05mDelta

Deal found 7/26

$314

Mon 8/186:35 amIAD - MSO

1 stop7h 03mUnited Airlines

Mon 8/2510:38 amMSO - IAD

1 stop6h 35mUnited Airlines

Deal found 7/27

$431

Last-minute flights from Dulles Intl to Missoula
Discover last-minute flight deals from Dulles Intl to Missoula. Data last updated July 28, 2025 and is based on user searches.

Mon 8/42:39 pmIAD - MSO

1 stop8h 44mUnited Airlines

Sat 8/92:29 pmMSO - IAD

1 stop8h 16mUnited Airlines

Deal found 7/26

$575

Mon 8/46:30 amIAD - MSO

1 stop10h 47mAlaska Airlines

Sat 8/95:45 amMSO - IAD

2 stops23h 05mAlaska Airlines

Deal found 7/26

$687

Mon 8/41:19 pmIAD - MSO

2 stops10h 29mAmerican Airlines

Sat 8/94:00 pmMSO - IAD

2 stops14h 42mAmerican Airlines

Deal found 7/26

$733

Thu 8/77:04 pmIAD - MSO

1 stop6h 42mDelta

Mon 8/116:24 pmMSO - IAD

2 stops12h 48mDelta

Deal found 7/27

$690

Sun 8/106:35 amIAD - MSO

1 stop7h 03mUnited Airlines

Thu 8/142:29 pmMSO - IAD

1 stop8h 16mUnited Airlines

Deal found 7/26

$401

Mon 8/186:50 pmIAD - MSO

1 stop6h 40mDelta

Tue 8/261:01 pmMSO - IAD

1 stop8h 31mDelta

Deal found 7/27

$366

Sat 8/236:27 amIAD - MSO

1 stop8h 34mAmerican Airlines

Sat 8/306:45 amMSO - IAD

2 stops10h 57mAmerican Airlines

Deal found 7/25

$398

Mon 8/257:00 amIAD - MSO

1 stop10h 18mAlaska Airlines

Mon 9/15:45 amMSO - IAD

2 stops47h 48mAlaska Airlines

Deal found 7/26

$530

One-way flights from Dulles Intl to Missoula
Search for one-way flight options from Dulles Intl to Missoula. Find affordable one-way fares based on user searches. Data last updated July 28, 2025.

Wed 9/106:09 pmIAD - MSO

1 stop8h 18mAlaska Airlines

Deal found 7/27

$144

Wed 9/176:00 amIAD - MSO

2 stops10h 38mDelta

Deal found 7/27

$150

Sun 9/286:25 amIAD - MSO

1 stop8h 35mAmerican Airlines

Deal found 7/27

$170

Thu 8/72:44 pmIAD - MSO

2 stops23h 10mFrontier

Deal found 7/27

$183

Wed 8/136:30 amIAD - MSO

1 stop10h 47mHawaiian Airlines

Deal found 7/26

$200

Thu 8/76:30 amIAD - MSO

1 stop8h 53mUnited Airlines

Deal found 7/27

$251

Fri 8/87:30 amIAD - MSO

1 stop10h 00mMultiple Airlines

Deal found 7/27

$258

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Missoula that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Tue 9/16

9:00 am-3:18 pm

1 stop8h 18m

Missoula Johnson-Bell Field

Tue 9/23

6:35 am-5:09 pm

1 stop8h 34m

$288

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Mon 9/15

9:00 am-3:18 pm

1 stop8h 18m

Missoula Johnson-Bell Field

Wed 9/24

2:14 pm-12:23 am

1 stop8h 09m

$289

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Tue 9/16

6:25 am-1:00 pm

1 stop8h 35m

Missoula Johnson-Bell Field

Wed 10/1

6:40 am-6:51 pm

2 stops10h 11m

$294

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Tue 9/16

7:05 pm-11:46 pm

1 stop6h 41m

Missoula Johnson-Bell Field

Thu 9/25

3:33 pm-11:38 pm

1 stop6h 05m

$314

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Mon 8/18

6:35 am-11:38 am

1 stop7h 03m

Missoula Johnson-Bell Field

Mon 8/25

10:38 am-7:13 pm

1 stop6h 35m

$431

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Wed 9/10

6:09 pm-12:27 am

1 stop8h 18m

$144

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Wed 9/17

6:00 am-2:38 pm

2 stops10h 38m

$150

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Sun 9/28

6:25 am-1:00 pm

1 stop8h 35m

$170

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Thu 8/7

2:44 pm-11:54 am

2 stops23h 10m

$183

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Wed 8/13

6:30 am-3:17 pm

1 stop10h 47m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 12 results

Best time to book a flight from Dulles Intl to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Missoula

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Missoula (average of $365). Flying from Washington, D.C. Dulles Intl Airport to Missoula in March is currently the most expensive (average of $506). 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.

What is the cheapest time of day to fly from IAD to MSO?

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Missoula in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Missoula

Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Washington, D.C. Dulles Intl Airport to Missoula to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Delta

8.0

Very good

7,971 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Hawaiian Airlines

7.8

Good

2,604 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

United Airlines

7.4

Good

8,893 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

What airport do you fly into for flights to Missoula from Washington, D.C. Dulles Intl?
For a flight from Washington, D.C. Dulles Intl to Missoula, you will be flying into Johnson-Bell Field. Missoula Johnson-Bell Field (MSO) is just 5.5 mi from the center of the city. Johnson-Bell Field is the only Missoula airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 4 airlines have flights to Missoula Johnson-Bell Field from Washington, D.C. Dulles Intl on a regular basis.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Missoula round-trip?
Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Missoula is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $288 on this airline. Additional options worth looking into are Alaska Airlines and American Airlines, starting at $289 and $294 round-trip. You may be able to fly from Washington, D.C. Dulles Intl Airport to Missoula for 57% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Missoula one-way?
$144 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 Delta and American Airlines, with prices starting from $150 and $170, respectively.
Can I find deals for flights from Dulles Intl to Missoula that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Missoula flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Missoula?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Missoula.
Can I find deals for business class flights from Dulles Intl to Missoula?
Yes. Cheapflights offers flight deals from Dulles Intl to Missoula 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 Washington, D.C. Dulles Intl Airport to Missoula?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Missoula (average of $365). Flying from Washington, D.C. Dulles Intl Airport to Missoula in March is currently the most expensive (average of $506). 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

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Other flights to Missoula

Top 4 airlines flying from Dulles Intl to Missoula

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$283	Average$596	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$363	Average$502	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$393	Average$601	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$439	Average$538	FlexibilityNo cancel fee	On-time71%

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$144+ Cheap flights from Dulles Intl (IAD) to Missoula (MSO)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from Dulles Intl to Missoula

Cheapest flights from Dulles Intl to MissoulaExplore the most affordable flight options available from Dulles Intl to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Explore the most affordable flight options available from Dulles Intl to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Missoula that are best for you.

Best time to book a flight from Dulles Intl to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from Dulles Intl with our price prediction graph.

Cheapflights Insights

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

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

What is the cheapest time of day to fly from IAD to MSO?

Find hourly flight availability from Dulles Intl to Missoula. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

Reviews of airlines servicing Missoula

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Missoula. 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 into for flights to Missoula from Washington, D.C. Dulles Intl?

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Missoula

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Dulles Intl to Missoula

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Cheapest flights from Dulles Intl to Missoula
Explore the most affordable flight options available from Dulles Intl to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.