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Washington, D.C.

$123+ Cheap flights from Montana to Washington, D.C. (WAS)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — WAS
Aug 3 — Aug 101
Mon 8/3
Mon 8/10
1 adult, Economy
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Cheap flight deals from Montana to Washington, D.C.

Cheapest flights from Montana to Washington, D.C.
Explore the most affordable flight options available from Montana to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:24 am
MSO
-
IAD
1 stop19h 56m
Multiple Airlines
Sat 8/159:30 am
IAD
-
MSO
1 stop26h 04m
Multiple Airlines
Deal found 7/3$307
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Thu 8/276:30 am
BZN
-
IAD
1 stop9h 20m
United Airlines
Sat 8/298:15 am
IAD
-
BZN
Nonstop4h 27m
United Airlines
Deal found 6/30$339
This United Airlines deal was found by Cheapflights users on 6/30. 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 10/2112:53 pm
BZN
-
IAD
1 stop6h 18m
United Airlines
Thu 10/2910:00 am
IAD
-
BZN
1 stop7h 13m
United Airlines
Deal found 6/30$344
This Delta deal was found by Cheapflights users on 7/1. 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.
Sat 8/156:24 pm
BIL
-
BWI
1 stop9h 56m
Delta
Tue 8/257:17 pm
BWI
-
BIL
1 stop6h 13m
Delta
Deal found 7/1$349
This Delta deal was found by Cheapflights users on 7/3. 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.
Sun 11/12:30 pm
BZN
-
IAD
1 stop8h 01m
Delta
Sat 11/77:00 am
IAD
-
BZN
1 stop7h 05m
Delta
Deal found 7/3$349
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Fri 9/42:29 pm
BIL
-
IAD
1 stop6h 50m
United Airlines
Tue 9/82:43 pm
IAD
-
BIL
1 stop8h 17m
United Airlines
Deal found 7/3$349
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 12/46:40 am
MSO
-
BWI
1 stop8h 31m
Alaska Airlines
Tue 12/87:51 am
BWI
-
MSO
1 stop9h 32m
Alaska Airlines
Deal found 7/2$349
This Delta deal was found by Cheapflights users on 7/1. 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.
Tue 11/243:15 pm
BZN
-
DCA
1 stop6h 14m
Delta
Tue 12/16:00 am
DCA
-
BZN
1 stop9h 16m
Delta
Deal found 7/1$349
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 9/312:22 pm
BIL
-
DCA
1 stop6h 37m
American Airlines
Sun 9/67:35 am
DCA
-
BIL
1 stop6h 15m
American Airlines
Deal found 7/2$349
This Delta deal was found by Cheapflights users on 7/1. 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.
Tue 8/255:30 am
MSO
-
DCA
1 stop9h 14m
Delta
Fri 8/285:59 pm
DCA
-
MSO
1 stop8h 19m
Delta
Deal found 7/1$349
This Delta deal was found by Cheapflights users on 7/3. 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.
Thu 8/205:30 am
MSO
-
DCA
1 stop9h 14m
Delta
Wed 8/265:59 pm
DCA
-
MSO
1 stop8h 19m
Delta
Deal found 7/3$350
This Delta deal was found by Cheapflights users on 7/1. 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.
Sat 8/156:25 pm
BIL
-
BWI
1 stop9h 55m
Delta
Mon 8/244:56 pm
BWI
-
BIL
2 stops8h 34m
Delta
Deal found 7/1$354

Find flight deals from Montana to Washington, D.C.

Keep the following information in mind while searching for Montana to Washington, D.C. flight deals. Data was last updated July 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$307
(Kiwi.com)

One-way from

$123
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$438

Good one-way deal

$241 or less
Provider with most accurate pricing for Bozeman Gallatin Field-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Washington, D.C. (WAS) flights.
Search Deals
From Montana to Washington, D.C. (WAS)
Search Deals
One-way flight from Montana to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a one-way flight from Montana to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana to Washington, D.C. 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 July 4, 2026.
Use the filters below to find and compare flights from Montana to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Sat 8/15

6:24 pm-6:20 am

1 stop9h 56m

Baltimore/Washington

Tue 8/25

7:17 pm-11:30 pm

1 stop6h 13m

$349

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Wed 9/23

4:23 pm-12:44 am

1 stop6h 21m

Washington, D.C. Dulles Intl

Tue 9/29

4:12 pm-9:04 pm

1 stop6h 52m

$349

MissoulaBaltimore

MSO - BWI

MSOBWI

Missoula Johnson-Bell Field

Fri 12/4

6:40 am-5:11 pm

1 stop8h 31m

Baltimore/Washington

Tue 12/8

7:51 am-3:23 pm

1 stop9h 32m

$349

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Sun 11/1

2:30 pm-12:31 am

1 stop8h 01m

Washington, D.C. Dulles Intl

Sat 11/7

7:00 am-12:05 pm

1 stop7h 05m

$349

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Tue 11/24

3:15 pm-11:29 pm

1 stop6h 14m

Washington, D.C. Reagan-National

Tue 12/1

6:00 am-1:16 pm

1 stop9h 16m

$349

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Wed 9/23

2:00 pm-11:55 pm

2 stops7h 55m

Washington, D.C. Reagan-National

Tue 9/29

6:05 am-12:15 pm

1 stop8h 10m

$354

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Wed 11/4

6:19 pm-6:00 am

1 stop9h 41m

Baltimore/Washington

Mon 11/9

12:15 pm-7:48 pm

2 stops9h 33m

$354

BillingsWashington, D.C.

BIL - DCA

BILDCA

Billings Logan Intl

Thu 11/12

6:15 am-7:19 pm

2 stops11h 04m

Washington, D.C. Reagan-National

Mon 11/16

3:10 pm-7:48 pm

1 stop6h 38m

$354

MissoulaWashington, D.C.

MSO - DCA

MSODCA

Missoula Johnson-Bell Field

Thu 8/20

5:30 am-6:43 pm

2 stops11h 13m

Washington, D.C. Reagan-National

Wed 8/26

5:59 pm-12:18 am

1 stop8h 19m

$356

MissoulaWashington, D.C.

MSO - DCA

MSODCA

Missoula Johnson-Bell Field

Mon 9/21

6:17 pm-10:06 am

2 stops13h 49m

Washington, D.C. Reagan-National

Sat 9/26

6:10 am-2:42 pm

2 stops10h 32m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Montana to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Montana 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 Montana to Washington, D.C.

What is the cheapest month to book a flight from Montana to Washington, D.C.?

Currently, October is the cheapest month in which you can book a flight from Montana to Washington, D.C. (average of $214). Flying from Montana to Washington, D.C. in March is currently the most expensive (average of $329). 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 MT to WAS?

Find hourly flight availability from Montana to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 4, 2026.

When flying from Montana to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Montana to Washington, D.C.

Explore weekly flight availability from Montana to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 4, 2026.

The most flights from USMT to WAS are scheduled on a Saturday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Montana to Washington, D.C.?

Related info for your journey

Find useful and relevant information for your journey from Montana to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montana to Washington, D.C.?

    A quick flight from Montana to Washington, D.C. can take about 6h 14m. Delta provides one of the quickest options available for as low as $349. Montana and Washington, D.C. are separated by a distance of 1768 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Montana to Washington, D.C. one-way?

    The cheapest airlines for a one-way flight from Montana to Washington, D.C. are Southwest ($85), Delta ($113), and United Airlines ($164).

  • What are the most popular routes from Montana to Washington, D.C.?

    The most popular route from Montana to Washington, D.C. is Bozeman Gallatin Field - Baltimore/Washington. You may also consider Billings Logan Intl - Washington, D.C. Dulles Intl or Billings Logan Intl - Washington, D.C. Reagan-National.

  • What are the cheapest flights from Montana to Washington, D.C.?

    Looking at all options, your cheapest flight can be booked for $198. While the most popular route (Bozeman Gallatin Field - Baltimore/Washington) can be booked for $377 on average, our data indicates $498 when flying from Montana to Washington, D.C..

  • Can I find deals for flights from Montana to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Montana to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Washington, D.C..

  • Can I find deals for business class flights from Montana to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Montana to Washington, D.C. 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 Montana to Washington, D.C.?

    Currently, October is the cheapest month in which you can book a flight from Montana to Washington, D.C. (average of $214). Flying from Montana to Washington, D.C. in March is currently the most expensive (average of $329). 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.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Falls Church
Fredericksburg
Hanover
Manassas
Silver Spring
Laurel
Clinton
Hunt Valley
Cordova
Woodbridge

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Montana to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Montana to Washington, D.C.

Discover the top 5 airlines that operate flights from Montana to Washington, D.C.. 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 July 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$241Average$413FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$248Average$566FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$522FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$328Average$529FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$384Average$484FlexibilityNo cancel feeOn-time75%

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