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Cheap flights from Missoula to Washington, D.C. from $171

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missoula to Washington, D.C. departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Missoula to Washington, D.C. (MSO-IAD)

Cheap round-trip flights

Delta Logo
3:33 pm - 11:38 pmMSO-IAD
6h 05m1 stop
Delta Logo
7:05 pm - 11:46 pmIAD-MSO
6h 41m1 stop
$341Delta
Find Deal
Thu, Sep 18 - Tue, Sep 23
Delta Logo
3:33 pm - 11:38 pmMSO-IAD
6h 05m1 stop
Delta Logo
5:00 pm - 11:46 pmIAD-MSO
8h 46m2 stops
$346Delta
Find Deal
Thu, Sep 18 - Tue, Sep 23
United Airlines Logo
6:20 am - 4:30 pmMSO-IAD
8h 10m1 stop
United Airlines Logo
8:25 am - 1:33 pmIAD-MSO
7h 08m1 stop
$361United Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
United Airlines Logo
6:30 am - 3:34 pmMSO-IAD
7h 04m1 stop
United Airlines Logo
6:35 am - 3:36 pmIAD-MSO
11h 01m1 stop
$366United Airlines
Find Deal
Tue, Sep 16 - Thu, Sep 18
Alaska Airlines Logo
2:14 pm - 12:23 amMSO-IAD
8h 09m1 stop
Alaska Airlines Logo
7:00 am - 3:18 pmIAD-MSO
10h 18m1 stop
$370Alaska Airlines
Find Deal
Wed, Sep 17 - Tue, Sep 23
Delta Logo
6:20 pm - 10:11 amMSO-IAD
13h 51m2 stops
Delta Logo
6:15 am - 12:27 pmIAD-MSO
8h 12m1 stop
$371Delta
Find Deal
Fri, Oct 24 - Sat, Nov 1
Delta Logo
6:20 pm - 10:11 amMSO-IAD
13h 51m2 stops
Delta Logo
1:00 pm - 11:13 pmIAD-MSO
12h 13m2 stops
$376Delta
Find Deal
Fri, Oct 24 - Sat, Nov 1
Alaska Airlines Logo
6:40 pm - 7:33 amMSO-IAD
10h 53m1 stop
Alaska Airlines Logo
7:00 am - 3:18 pmIAD-MSO
10h 18m1 stop
$385Alaska Airlines
Find Deal
Wed, Sep 24 - Sun, Sep 28
Alaska Airlines Logo
6:40 pm - 7:33 amMSO-IAD
10h 53m1 stop
Alaska Airlines Logo
8:53 am - 3:23 pmIAD-MSO
8h 30m1 stop
$396Alaska Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
United Airlines Logo
4:17 pm - 5:24 amMSO-IAD
11h 07m1 stop
United Airlines Logo
8:35 am - 3:36 pmIAD-MSO
9h 01m1 stop
$450United Airlines
Find Deal
Fri, Sep 19 - Sat, Sep 20

Alaska Airlines flights from Missoula to Washington, D.C. Dulles Intl Airport

Our best Alaska Airlines deals on Missoula to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
Sep 17
MSO2:14 pmMissoula Johnson-Bell Field
8h 09m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
Sep 23
IAD7:00 amWashington, D.C. Dulles Intl
10h 18m
1 stop
MSO3:18 pmMissoula Johnson-Bell Field
$370
Find similar
Alaska Airlines
Sep 24
MSO6:40 pmMissoula Johnson-Bell Field
10h 53m
1 stop
IAD7:33 amWashington, D.C. Dulles Intl
Sep 28
IAD7:00 amWashington, D.C. Dulles Intl
10h 18m
1 stop
MSO3:18 pmMissoula Johnson-Bell Field
$385
Find similar
Alaska Airlines
Oct 3
MSO6:40 pmMissoula Johnson-Bell Field
10h 53m
1 stop
IAD7:33 amWashington, D.C. Dulles Intl
Oct 7
IAD8:53 amWashington, D.C. Dulles Intl
8h 30m
1 stop
MSO3:23 pmMissoula Johnson-Bell Field
$396
Find similar

Delta flights from Missoula to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Missoula to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Sep 18
MSO3:33 pmMissoula Johnson-Bell Field
6h 05m
1 stop
IAD11:38 pmWashington, D.C. Dulles Intl
Sep 23
IAD7:05 pmWashington, D.C. Dulles Intl
6h 41m
1 stop
MSO11:46 pmMissoula Johnson-Bell Field
$341
Find similar
Delta
Sep 18
MSO3:33 pmMissoula Johnson-Bell Field
6h 05m
1 stop
IAD11:38 pmWashington, D.C. Dulles Intl
Sep 23
IAD5:00 pmWashington, D.C. Dulles Intl
8h 46m
2 stops
MSO11:46 pmMissoula Johnson-Bell Field
$346
Find similar
Delta
Oct 24
MSO6:20 pmMissoula Johnson-Bell Field
13h 51m
2 stops
IAD10:11 amWashington, D.C. Dulles Intl
Nov 1
IAD6:15 amWashington, D.C. Dulles Intl
8h 12m
1 stop
MSO12:27 pmMissoula Johnson-Bell Field
$371
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missoula to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated August 25, 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

Fly to

Route

Depart

Return

Price

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Thu 9/18

3:33 pm-11:38 pm

1 stop6h 05m

Washington, D.C. Dulles Intl

Tue 9/23

7:05 pm-11:46 pm

1 stop6h 41m

$341

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Thu 9/18

3:33 pm-11:38 pm

1 stop6h 05m

Washington, D.C. Dulles Intl

Tue 9/23

5:00 pm-11:46 pm

2 stops8h 46m

$346

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Fri 10/31

6:20 am-4:30 pm

1 stop8h 10m

Washington, D.C. Dulles Intl

Sun 11/2

8:25 am-1:33 pm

1 stop7h 08m

$361

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Tue 9/16

6:30 am-3:34 pm

1 stop7h 04m

Washington, D.C. Dulles Intl

Thu 9/18

6:35 am-3:36 pm

1 stop11h 01m

$366

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Wed 9/17

2:14 pm-12:23 am

1 stop8h 09m

Washington, D.C. Dulles Intl

Tue 9/23

7:00 am-3:18 pm

1 stop10h 18m

$370

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Fri 10/24

6:20 pm-10:11 am

2 stops13h 51m

Washington, D.C. Dulles Intl

Sat 11/1

6:15 am-12:27 pm

1 stop8h 12m

$371

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Fri 10/24

6:20 pm-10:11 am

2 stops13h 51m

Washington, D.C. Dulles Intl

Sat 11/1

1:00 pm-11:13 pm

2 stops12h 13m

$376

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Wed 9/24

6:40 pm-7:33 am

1 stop10h 53m

Washington, D.C. Dulles Intl

Sun 9/28

7:00 am-3:18 pm

1 stop10h 18m

$385

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Fri 10/3

6:40 pm-7:33 am

1 stop10h 53m

Washington, D.C. Dulles Intl

Tue 10/7

8:53 am-3:23 pm

1 stop8h 30m

$396

MissoulaWashington, D.C.

MSO - IAD

MSOIAD

Missoula Johnson-Bell Field

Fri 9/19

4:17 pm-5:24 am

1 stop11h 07m

Washington, D.C. Dulles Intl

Sat 9/20

8:35 am-3:36 pm

1 stop9h 01m

$450

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Missoula to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Monday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $556. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Missoula to Washington, D.C. Dulles Intl Airport for around $813.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Missoula at noon is the least expensive time of day to depart. momondo users have found prices as low as $568 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $619 on average. Flights to Washington, D.C. Dulles Intl Airport from Missoula in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Missoula to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Missoula to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Missoula to Washington, D.C. Dulles Intl Airport (MSO to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missoula to Washington, D.C. Dulles Intl Airport

Direct flights

None
There are no direct flights from Missoula to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Missoula to Washington, D.C. Dulles Intl Airport.
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  • How far is Missoula Johnson-Bell Field to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 1908.0 mi away from Missoula Johnson-Bell Field. In terms of flight time, this usually takes a little over 5h 45m.

  • When did momondo last update prices for flights from Missoula Johnson-Bell Field Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Missoula Johnson-Bell Field Airport to Washington, D.C. Dulles Intl Airport refresh daily.

  • How many operators does momondo search for flights from Missoula Johnson-Bell Field Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Missoula Johnson-Bell Field Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missoula Johnson-Bell Field Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Missoula to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Missoula to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Missoula to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $338Free CancellationRating
7.9
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $433Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Silver Spring
Colonial Beach
Fredericksburg
Harpers Ferry
Towson
Manassas
Rockville
Gaithersburg
Reston
Fairfax
Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from Missoula to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missoula to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Missoula to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Missoula to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Missoula to Washington, D.C.?

Once you have performed a search for Missoula to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Missoula to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Missoula are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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