HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$119+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — WAS
Jan 31 — Feb 71
Sat 1/31
Sat 2/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montana to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 1, 2026.

This United Airlines deal was found by Cheapflights users on 12/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:26 pmBZN - BWI
2 stops13h 51mUnited Airlines
Sun 1/44:05 pmBWI - BZN
1 stop7h 03mUnited Airlines
Deal found 12/28$469
This Delta deal was found by Cheapflights users on 12/28. 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.
Mon 12/293:20 pmBZN - BWI
1 stop7h 23mDelta
Sun 1/46:00 amBWI - BZN
1 stop10h 06mDelta
Deal found 12/28$482
This Southwest deal was found by Cheapflights users on 12/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:00 amBZN - IAD
1 stop6h 05mSouthwest
Sun 1/47:50 pmIAD - BZN
1 stop6h 35mSouthwest
Deal found 12/28$485
This Delta deal was found by Cheapflights users on 12/28. 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.
Wed 12/3112:15 pmBZN - BWI
2 stops9h 17mDelta
Sun 1/46:00 amBWI - BZN
1 stop10h 06mDelta
Deal found 12/28$487
This American Airlines deal was found by Cheapflights users on 12/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:34 pmBZN - IAD
2 stops8h 30mAmerican Airlines
Sun 1/46:05 amIAD - BZN
1 stop10h 49mAmerican Airlines
Deal found 12/28$490
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:20 pmBZN - IAD
1 stop5h 53mDelta
Thu 1/16:00 amIAD - BZN
1 stop7h 26mDelta
Deal found 12/30$491
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:20 pmBZN - DCA
1 stop5h 41mDelta
Thu 1/17:20 amDCA - BZN
1 stop8h 46mDelta
Deal found 12/30$491
This Delta deal was found by Cheapflights users on 12/28. 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.
Mon 12/2912:15 pmBZN - IAD
1 stop9h 03mDelta
Mon 1/56:20 amIAD - BZN
1 stop9h 09mDelta
Deal found 12/28$505
This Delta deal was found by Cheapflights users on 12/28. 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.
Mon 12/2912:15 pmBZN - IAD
1 stop9h 03mDelta
Thu 1/16:00 amIAD - BZN
1 stop7h 26mDelta
Deal found 12/28$511
This Delta deal was found by Cheapflights users on 12/28. 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.
Tue 12/306:16 pmBZN - IAD
2 stops13h 33mDelta
Mon 1/56:20 amIAD - BZN
2 stops13h 28mDelta
Deal found 12/28$515
This Delta deal was found by Cheapflights users on 12/28. 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.
Mon 12/2911:53 amBZN - IAD
1 stop9h 34mDelta
Sat 1/310:51 amIAD - BZN
2 stops14h 07mDelta
Deal found 12/28$516
This American Airlines deal was found by Cheapflights users on 12/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:34 pmBZN - BWI
1 stop8h 21mAmerican Airlines
Sat 1/36:00 amBWI - BZN
1 stop8h 46mAmerican Airlines
Deal found 12/28$529

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 January 1, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(United Airlines)

One-way from

$119
(Delta)

Popular in

August

Cheapest in

September

Average price

$310

Good round-trip deal

$489 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. 4% potential increase in price ($18 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 January 2026
Search Deals
Price to beat on a round-trip 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 January 1, 2026.
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

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Tue 3/24

7:00 am-6:04 pm

1 stop9h 04m

Baltimore/Washington

Tue 4/14

7:00 am-12:51 pm

1 stop7h 51m

$249

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Wed 2/18

6:20 am-3:07 pm

1 stop6h 47m

Baltimore/Washington

Mon 2/23

6:30 am-11:46 am

1 stop7h 16m

$249

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Wed 2/18

2:00 pm-11:47 pm

1 stop7h 47m

Baltimore/Washington

Fri 2/20

2:58 pm-8:08 pm

1 stop7h 10m

$277

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Fri 2/20

6:00 am-1:54 pm

1 stop5h 54m

Baltimore/Washington

Sun 2/22

6:00 am-11:24 am

1 stop7h 24m

$277

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Thu 2/19

6:00 am-1:54 pm

1 stop5h 54m

Baltimore/Washington

Fri 2/20

2:58 pm-11:15 pm

2 stops10h 17m

$282

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Wed 2/18

6:00 am-1:54 pm

1 stop5h 54m

Baltimore/Washington

Tue 2/24

6:00 am-12:53 pm

2 stops8h 53m

$282

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Fri 2/20

6:00 am-1:54 pm

1 stop5h 54m

Baltimore/Washington

Mon 2/23

10:33 am-8:08 pm

2 stops11h 35m

$282

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Thu 2/19

6:00 am-1:54 pm

1 stop5h 54m

Baltimore/Washington

Tue 2/24

6:00 am-2:20 pm

2 stops10h 20m

$282

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Fri 2/20

6:00 am-1:54 pm

1 stop5h 54m

Baltimore/Washington

Sat 2/21

11:00 am-8:08 pm

2 stops11h 08m

$282

BozemanWashington, D.C.

BZN - IAD

BZNIAD

Bozeman Gallatin Field

Thu 2/19

7:00 am-5:20 pm

1 stop8h 20m

Washington, D.C. Dulles Intl

Tue 2/24

7:05 am-2:08 pm

1 stop9h 03m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 60 results
1
2
3
...
6

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 $158). Flying from Montana to Washington, D.C. in December is currently the most expensive (average of $277). 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 January 1, 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.

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 47m. American Airlines provides one of the quickest options available for as low as $249. Montana and Washington, D.C. are separated by a distance of 1799 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

    Looking at all options, your cheapest flight can be booked for $359. While the most popular route (Billings Logan Intl - Washington, D.C. Reagan-National) can be booked for $424 on average, our data indicates $884 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, April is the cheapest month in which you can book a flight from Montana to Washington, D.C. (average of $158). Flying from Montana to Washington, D.C. in December is currently the most expensive (average of $277). 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
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Montana to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Dulles Intl flights
Dallas/Fort Worth to Reagan-National flights
Atlanta to Reagan-National flights
Seattle to Reagan-National flights
Boston to Reagan-National flights
Atlanta to Dulles Intl flights
Orlando to Dulles Intl flights
O'Hare Intl to Reagan-National flights
Boston to Dulles Intl flights
O'Hare Intl to Dulles Intl flights
Hobby to Reagan-National flights
Hobby to Dulles Intl flights
San Francisco to Reagan-National flights
Orlando to Reagan-National flights
Seattle to Dulles Intl flights
Tampa to Dulles Intl flights
San Francisco to Dulles Intl flights
Miami to Reagan-National flights
Miami to Dulles Intl flights
Minneapolis to Dulles Intl flights
John F Kennedy Intl to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
Sky Harbor Intl to Dulles Intl flights
Detroit to Dulles Intl flights
George Bush Intcntl to Dulles Intl flights
LaGuardia to Reagan-National flights
Denver to Dulles Intl flights
Minneapolis to Reagan-National flights
Detroit to Reagan-National flights
John F Kennedy Intl to Reagan-National flights
Tampa to Reagan-National flights
Denver to Reagan-National flights
Austin to Dulles Intl flights
Charlotte to Dulles Intl flights
Ontario to Dulles Intl flights
Sky Harbor Intl to Reagan-National flights
San Diego to Dulles Intl flights
Nashville to Reagan-National flights
Austin to Reagan-National flights
Fort Lauderdale to Dulles Intl flights
Nashville to Dulles Intl flights
Hartford to Dulles Intl flights
Fort Lauderdale to Reagan-National flights
Newark to Dulles Intl flights
St. Louis to Dulles Intl flights
Portland to Dulles Intl flights
New Orleans to Dulles Intl flights
Ontario to Reagan-National flights

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 January 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$203Average$456FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$210Average$594FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$220Average$362FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$269Average$561FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.