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Washington, D.C.

$118+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — WAS
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
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 November 17, 2025.

This Delta deal was found by Cheapflights users on 11/17. 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
Sun 1/116:00 amDCA - BZN
1 stop7h 20mDelta
Deal found 11/17$249
This Delta deal was found by Cheapflights users on 11/17. 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 12/135:30 amBZN - IAD
2 stops9h 30mDelta
Sun 1/116:20 amIAD - BZN
1 stop7h 00mDelta
Deal found 11/17$254
This Delta deal was found by Cheapflights users on 11/15. 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 12/52:51 pmFCA - IAD
1 stop7h 11mDelta
Fri 12/126:03 amIAD - FCA
1 stop9h 53mDelta
Deal found 11/15$274
This Delta deal was found by Cheapflights users on 11/17. 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 12/22:36 pmBZN - IAD
1 stop7h 36mDelta
Sat 12/66:55 amIAD - BZN
1 stop8h 31mDelta
Deal found 11/17$299
This Delta deal was found by Cheapflights users on 11/17. 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 12/25:30 amBZN - DCA
2 stops11h 29mDelta
Sat 12/66:00 amDCA - BZN
1 stop9h 26mDelta
Deal found 11/17$304
This Alaska Airlines deal was found by Cheapflights users on 11/16. 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.
Wed 11/198:00 amBZN - DCA
1 stop11h 59mAlaska Airlines
Sun 11/238:00 amDCA - BZN
1 stop13h 04mAlaska Airlines
Deal found 11/16$323
This Alaska Airlines deal was found by Cheapflights users on 11/16. 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.
Wed 12/3111:37 amBZN - BWI
1 stop16h 07mAlaska Airlines
Wed 1/77:14 pmBWI - BZN
1 stop18h 06mAlaska Airlines
Deal found 11/16$332
This American Airlines deal was found by Cheapflights users on 11/16. 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 12/311:34 pmBZN - DCA
1 stop8h 25mAmerican Airlines
Wed 1/76:00 amDCA - BZN
1 stop8h 50mAmerican Airlines
Deal found 11/16$337
This United Airlines deal was found by Cheapflights users on 11/16. 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.
Tue 12/306:22 pmBZN - IAD
1 stop8h 57mUnited Airlines
Sun 1/116:00 amIAD - BZN
1 stop9h 20mUnited Airlines
Deal found 11/16$339
This Alaska Airlines deal was found by Cheapflights users on 11/17. 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 12/56:30 amFCA - IAD
1 stop8h 06mAlaska Airlines
Mon 12/87:34 amIAD - FCA
1 stop18h 24mAlaska Airlines
Deal found 11/17$353
This Delta deal was found by Cheapflights users on 11/16. 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.
Wed 12/315:20 amBZN - BWI
2 stops10h 31mDelta
Wed 1/76:05 amBWI - BZN
1 stop8h 50mDelta
Deal found 11/16$353
This Delta deal was found by Cheapflights users on 11/16. 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.
Mon 12/16:34 pmBZN - BWI
1 stop9h 24mDelta
Fri 12/57:06 pmBWI - BZN
1 stop6h 31mDelta
Deal found 11/16$359

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 November 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

One-way from

$118
(Alaska Airlines)

Popular in

December

Cheapest in

September

Average price

$326
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. 12% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 17, 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

Thu 2/26

6:00 am-1:35 pm

1 stop5h 35m

Washington, D.C. Dulles Intl

Mon 3/2

7:30 am-2:20 pm

1 stop8h 50m

$249

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Thu 2/26

6:10 am-4:05 pm

1 stop7h 55m

Baltimore/Washington

Sat 2/28

5:50 pm-10:50 pm

1 stop7h 00m

$249

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Tue 1/27

6:00 am-1:35 pm

1 stop5h 35m

Washington, D.C. Dulles Intl

Mon 2/2

7:00 am-12:55 pm

1 stop7h 55m

$249

KalispellWashington, D.C.

FCA - IAD

FCAIAD

Kalispell Glacier Park

Wed 4/15

3:00 pm-11:29 pm

1 stop6h 29m

Washington, D.C. Dulles Intl

Sat 4/18

6:15 am-1:45 pm

1 stop9h 30m

$249

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Wed 2/25

6:00 am-1:26 pm

1 stop5h 26m

Washington, D.C. Reagan-National

Sat 2/28

3:10 pm-8:00 pm

1 stop6h 50m

$249

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Sat 12/13

6:00 am-1:30 pm

1 stop5h 30m

Washington, D.C. Reagan-National

Sun 1/11

6:00 am-11:20 am

1 stop7h 20m

$249

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Thu 2/26

2:00 pm-10:00 pm

1 stop6h 00m

Washington, D.C. Reagan-National

Sat 2/28

3:10 pm-8:00 pm

1 stop6h 50m

$249

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Sat 12/13

5:30 am-5:00 pm

2 stops9h 30m

Washington, D.C. Dulles Intl

Sun 1/11

6:20 am-11:20 am

1 stop7h 00m

$254

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Wed 2/25

3:02 pm-5:46 pm

1 stop24h 44m

Baltimore/Washington

Sat 2/28

6:46 pm-10:53 am

1 stop18h 07m

$262

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Tue 4/7

9:50 am-9:30 pm

1 stop9h 40m

Baltimore/Washington

Wed 4/15

9:05 am-2:40 pm

1 stop7h 35m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

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 November 17, 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 5h 35m. Delta provides one of the quickest options available for as low as $249. 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 Alaska Airlines ($118), United Airlines ($125), and Delta ($125).

  • 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 - Baltimore/Washington or Missoula Johnson-Bell Field - Washington, D.C. Reagan-National.

  • 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
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$203Average$471FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$210Average$624FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$220Average$368FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$269Average$552FlexibilityNo cancel feeOn-time71%

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