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Washington, D.C.

$125+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — WAS
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
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Find 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 December 1, 2025.

This American Airlines deal was found by Cheapflights users on 11/29. 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 12/251:36 pmBZN - IAD
1 stop6h 57mAmerican Airlines
Mon 1/56:05 amIAD - BZN
1 stop10h 49mAmerican Airlines
Deal found 11/29$289
This American Airlines deal was found by Cheapflights users on 11/29. 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 12/251:36 pmBZN - DCA
1 stop7h 23mAmerican Airlines
Mon 1/56:30 amDCA - BZN
1 stop10h 24mAmerican Airlines
Deal found 11/29$289
This Delta deal was found by Cheapflights users on 11/29. 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 12/255:20 amBZN - DCA
2 stops13h 12mDelta
Mon 1/56:00 amDCA - BZN
1 stop8h 55mDelta
Deal found 11/29$339
This Delta deal was found by Cheapflights users on 11/28. 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 12/132:17 pmBZN - IAD
1 stop7h 45mDelta
Wed 12/177:15 amIAD - BZN
1 stop9h 03mDelta
Deal found 11/28$359
This Delta deal was found by Cheapflights users on 11/28. 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 12/136:00 amBZN - DCA
1 stop5h 30mDelta
Wed 12/173:06 pmDCA - BZN
2 stops10h 31mDelta
Deal found 11/28$364
This Delta deal was found by Cheapflights users on 11/29. 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 12/255:20 amBZN - DCA
1 stop8h 41mDelta
Wed 12/316:00 amDCA - BZN
1 stop7h 26mDelta
Deal found 11/29$370
This United Airlines deal was found by Cheapflights users on 11/29. 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 12/1812:42 pmBZN - DCA
1 stop6h 17mUnited Airlines
Thu 12/256:30 amDCA - BZN
1 stop7h 09mUnited Airlines
Deal found 11/29$373
This United Airlines deal was found by Cheapflights users on 12/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:15 amBZN - IAD
1 stop8h 24mUnited Airlines
Thu 12/256:30 amIAD - BZN
1 stop7h 09mUnited Airlines
Deal found 12/1$377
This United Airlines deal was found by Cheapflights users on 11/29. 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 12/2510:41 amBZN - IAD
1 stop8h 44mUnited Airlines
Wed 12/315:31 pmIAD - BZN
1 stop6h 58mUnited Airlines
Deal found 11/29$379
This Delta deal was found by Cheapflights users on 11/29. 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 12/2512:15 pmBZN - IAD
2 stops8h 37mDelta
Mon 1/57:30 amIAD - BZN
1 stop8h 50mDelta
Deal found 11/29$394
This United Airlines deal was found by Cheapflights users on 11/30. 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.
Fri 12/197:15 amBZN - DCA
1 stop7h 44mUnited Airlines
Wed 12/244:17 pmDCA - BZN
1 stop6h 51mUnited Airlines
Deal found 11/30$411
This United Airlines deal was found by Cheapflights users on 11/30. 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 12/2412:38 pmFCA - BWI
1 stop6h 48mUnited Airlines
Sun 1/46:15 amBWI - FCA
1 stop7h 27mUnited Airlines
Deal found 11/30$414

Cheap 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 December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$201
(Southwest)

One-way from

$125
(Delta)

Popular in

December

Cheapest in

September

Average price

$486
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. 4% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 1, 2025.
Use the filters below to find and compare flights from Montana to Washington, D.C. that are best for you.

Fly from

Montana

Fly to

Washington, D.C.

Route

Depart

Return

Price

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Tue 1/27

7:40 am-3:50 pm

1 stop6h 10m

Washington, D.C. Dulles Intl

Sat 1/31

3:45 pm-8:30 pm

1 stop6h 45m

$201

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Tue 1/27

7:40 am-8:15 pm

2 stops10h 35m

Washington, D.C. Reagan-National

Sat 1/31

6:00 am-1:25 pm

1 stop9h 25m

$204

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Tue 1/27

6:15 am-4:35 pm

1 stop8h 20m

Washington, D.C. Dulles Intl

Sat 1/31

8:30 am-11:21 am

Nonstop4h 51m

$279

KalispellBaltimore

FCA - BWI

FCABWI

Kalispell Glacier Park

Wed 2/18

7:53 pm-5:46 pm

1 stop19h 53m

Baltimore/Washington

Fri 2/27

6:46 pm-12:12 pm

1 stop19h 26m

$289

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Fri 1/30

2:00 pm-11:57 pm

1 stop7h 57m

Washington, D.C. Dulles Intl

Tue 2/3

7:30 am-2:20 pm

1 stop8h 50m

$289

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Mon 2/23

7:00 am-3:44 pm

1 stop6h 44m

Washington, D.C. Reagan-National

Sun 3/1

6:00 am-12:39 pm

1 stop8h 39m

$289

KalispellBaltimore

FCA - BWI

FCABWI

Kalispell Glacier Park

Thu 4/30

2:29 pm-11:00 pm

1 stop6h 31m

Baltimore/Washington

Mon 5/4

8:15 am-1:33 pm

1 stop7h 18m

$289

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Tue 1/27

7:20 am-9:59 pm

1 stop12h 39m

Washington, D.C. Reagan-National

Sat 1/31

8:00 am-11:56 pm

1 stop17h 56m

$289

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Sun 12/28

6:22 pm-5:19 am

1 stop8h 57m

Washington, D.C. Dulles Intl

Sun 1/4

6:20 am-1:37 pm

1 stop9h 17m

$289

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Sat 1/31

11:22 am-9:59 pm

1 stop8h 37m

Washington, D.C. Reagan-National

Tue 2/3

5:01 pm-11:56 pm

1 stop8h 55m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 60 results
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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, April is the cheapest month in which you can book a flight from Montana to Washington, D.C. (average of $169). Flying from Montana to Washington, D.C. in July is currently the most expensive (average of $271). 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 December 1, 2025.

A simple way to save on the total cost of your ticket is to fly from Montana to Washington, D.C. in the evening. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the morning.

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 10m. Southwest provides one of the quickest options available for as low as $201. 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 United Airlines ($125), Delta ($125), and Alaska Airlines ($144).

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

    The most popular route from Montana to Washington, D.C. is Missoula Johnson-Bell Field - Washington, D.C. Dulles Intl. You may also consider Missoula Johnson-Bell Field - Washington, D.C. Reagan-National or Bozeman Gallatin Field - Washington, D.C. Dulles Intl.

  • 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, April is the cheapest month in which you can book a flight from Montana to Washington, D.C. (average of $169). Flying from Montana to Washington, D.C. in July is currently the most expensive (average of $271). 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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 4 airlines flying from Montana to Washington, D.C.

Discover the top 4 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 December 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$203Average$461FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$210Average$613FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$220Average$362FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$269Average$561FlexibilityNo cancel feeOn-time71%

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