Washington, D.C.

$113+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — WAS
Oct 17 — Oct 241
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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 September 17, 2025.

Round-trip from

$193
(Southwest)

One-way from

$113
(Southwest)

Popular in

March

Cheapest in

June

Average price

$423

Good round-trip deal

$567 or less

Good one-way deal

$220 or less
From Montana to Washington, D.C. (WAS)
One-way flight from Montana to Washington, D.C. (WAS)
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Montana to Washington, D.C. (WAS).
Price to beat on a one-way flight from Montana to Washington, D.C. (WAS).

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 September 17, 2025.

This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:10 amBZN - DCA
2 stops7h 50mSouthwest
Sat 11/811:40 amDCA - BZN
2 stops10h 55mSouthwest
Deal found 9/15$193
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:40 pmBZN - IAD
1 stop7h 30mSouthwest
Sun 12/145:05 amIAD - BZN
1 stop6h 30mSouthwest
Deal found 9/15$199
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1811:10 amBZN - IAD
1 stop8h 14mUnited Airlines
Thu 10/231:20 pmIAD - BZN
1 stop7h 38mUnited Airlines
Deal found 9/15$215
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1812:50 pmBZN - DCA
1 stop6h 13mUnited Airlines
Thu 10/231:00 pmDCA - BZN
1 stop7h 58mUnited Airlines
Deal found 9/15$215
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 10/292:29 pmBZN - IAD
1 stop6h 51mDelta
Sat 11/86:15 amIAD - BZN
1 stop7h 59mDelta
Deal found 9/15$257
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 10/292:29 pmBZN - DCA
1 stop7h 12mDelta
Tue 11/115:05 pmDCA - BZN
1 stop9h 05mDelta
Deal found 9/15$257
This Delta deal was found by Cheapflights users on 9/15. 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.
Sat 11/12:01 pmBZN - IAD
1 stop7h 38mDelta
Sat 11/85:10 pmIAD - BZN
2 stops8h 27mDelta
Deal found 9/15$262
This Delta deal was found by Cheapflights users on 9/15. 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.
Sat 11/16:00 amBZN - DCA
2 stops9h 20mDelta
Sat 11/88:00 amDCA - BZN
1 stop7h 19mDelta
Deal found 9/15$262
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/191:52 pmBZN - IAD
1 stop6h 41mAmerican Airlines
Fri 11/216:04 amIAD - BZN
1 stop8h 57mAmerican Airlines
Deal found 9/17$280
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/191:52 pmBZN - DCA
1 stop7h 08mAmerican Airlines
Fri 11/216:30 amDCA - BZN
1 stop8h 31mAmerican Airlines
Deal found 9/17$280
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:00 amBZN - IAD
1 stop7h 43mUnited Airlines
Mon 10/206:30 amIAD - BZN
1 stop7h 09mUnited Airlines
Deal found 9/15$287
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:15 pmFCA - IAD
1 stop8h 08mHawaiian Airlines
Sat 10/116:25 amIAD - FCA
1 stop7h 57mHawaiian Airlines
Deal found 9/15$290

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 September 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 - DCA

BZNDCA

Bozeman Gallatin Field

Tue 12/9

12:50 pm-8:55 pm

1 stop6h 05m

Washington, D.C. Reagan-National

Sun 12/14

6:30 am-11:48 am

1 stop7h 18m

$215

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Sat 10/18

12:50 pm-9:03 pm

1 stop6h 13m

Washington, D.C. Reagan-National

Thu 10/23

1:00 pm-6:58 pm

1 stop7h 58m

$215

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Sat 11/1

2:29 pm-11:20 pm

1 stop6h 51m

Washington, D.C. Dulles Intl

Mon 11/10

6:59 pm-11:34 pm

1 stop6h 35m

$257

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Wed 10/29

2:29 pm-11:20 pm

1 stop6h 51m

Washington, D.C. Dulles Intl

Sun 11/9

7:15 am-2:17 pm

1 stop9h 02m

$257

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Thu 2/26

2:00 pm-12:07 am

1 stop8h 07m

Washington, D.C. Dulles Intl

Mon 3/2

7:00 am-1:22 pm

1 stop8h 22m

$257

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Sat 11/1

3:01 pm-12:40 am

1 stop7h 39m

Washington, D.C. Dulles Intl

Fri 11/7

7:35 am-2:21 pm

1 stop8h 46m

$257

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Thu 10/30

2:01 pm-11:39 pm

1 stop7h 38m

Washington, D.C. Dulles Intl

Wed 11/5

7:05 am-1:19 pm

1 stop8h 14m

$257

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Mon 11/3

3:01 pm-12:40 am

1 stop7h 39m

Washington, D.C. Dulles Intl

Mon 11/10

6:59 pm-11:34 pm

1 stop6h 35m

$257

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Tue 11/4

2:01 pm-11:39 pm

1 stop7h 38m

Washington, D.C. Dulles Intl

Mon 11/10

6:59 pm-11:34 pm

1 stop6h 35m

$257

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Mon 11/3

3:01 pm-12:40 am

1 stop7h 39m

Washington, D.C. Dulles Intl

Thu 11/6

6:15 am-10:44 am

1 stop6h 29m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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, August is the cheapest month in which you can book a flight from Montana to Washington, D.C. (average of $292). Flying from Montana to Washington, D.C. in April is currently the most expensive (average of $337). 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 September 17, 2025.

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.

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 05m. United Airlines provides one of the quickest options available for as low as $215. Montana and Washington, D.C. are separated by a distance of 1791 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 ($113), Delta ($129), and United Airlines ($149).

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

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

    Looking at all options, your cheapest flight can be booked for $213. While the most popular route (Bozeman Gallatin Field - Washington, D.C. Dulles Intl) can be booked for $199 on average, our data indicates $453 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, August is the cheapest month in which you can book a flight from Montana to Washington, D.C. (average of $292). Flying from Montana to Washington, D.C. in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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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.

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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$480FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$210Average$568FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$220Average$398FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$313Average$541FlexibilityNo cancel feeOn-time71%

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