What airlines fly to Washington, D.C.?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Washington, D.C. from Montana according to our data. United Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 5 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Washington, D.C.?

Flight times from Montana to Washington, D.C. vary, but if you’re flying out of Bozeman and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 4h 08m on average. Another popular route from Montana to Washington, D.C. is flying from Billings to Washington, D.C. Dulles Intl Airport, which will take roughly 5h 09m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Montana to Washington, D.C. on average per week?

As of June 2026, 4 flights take off from Montana and land in Washington, D.C. each week. The most common flight departure day for this route is Mon, with 25% of weekly flights taking off on this day.

What is the cheapest airline that flies from Montana to Washington, D.C.?

American Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Montana to Washington, D.C.

When did momondo last update prices for flights from Montana to Washington, D.C.?

Prices for flights from Montana to Washington, D.C. are updated daily.

How many operators does momondo search for flights from Montana to Washington, D.C.?

There are 5 operators available for flights from Montana to Washington, D.C. as of June 2026.

How old do you have to be to fly from Montana to Washington, D.C.?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$139 Cheap Flights from Montana to Washington, D.C. in 2026

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Find the cheapest flights from Montana to Washington, D.C.

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One-way

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Enter your travel dates to find the best prices.

3:15 pm - 11:46 pm

BZN

BWI

6h 31m

1 stop

6:00 am - 1:16 pm

BWI

BZN

9h 16m

1 stop

$309Delta

Sun, Nov 1 - Sat, Nov 7

4:22 pm - 6:48 am

BZN

BWI

12h 26m

2 stops

8:15 am - 1:28 pm

BWI

BZN

7h 13m

1 stop

$314United Airlines

Tue, Oct 20 - Thu, Oct 29

9:20 am - 9:00 pm

BZN

DCA

9h 40m

1 stop

10:59 am - 8:45 pm

DCA

BZN

11h 46m

1 stop

$316Alaska Airlines

Wed, Aug 26 - Sat, Aug 29

7:30 pm - 5:49 am

BZN

BWI

8h 19m

1 stop

6:19 am - 10:22 am

BWI

BZN

6h 03m

1 stop

$334Delta

Thu, Jul 2 - Sun, Jul 5

9:20 am - 9:00 pm

BZN

DCA

9h 40m

1 stop

10:59 am - 8:45 pm

DCA

BZN

11h 46m

1 stop

$349Alaska Airlines

Wed, Aug 26 - Sat, Aug 29

6:33 pm - 6:20 am

BIL

BWI

9h 47m

1 stop

7:17 pm - 11:30 pm

BWI

BIL

6h 13m

1 stop

$349Delta

Sat, Aug 15 - Tue, Aug 25

1:25 pm - 11:58 pm

MSO

DCA

8h 33m

1 stop

5:00 am - 12:35 pm

DCA

MSO

9h 35m

1 stop

$364American Airlines

Tue, Aug 25 - Mon, Aug 31

11:25 am - 9:00 pm

BZN

BWI

7h 35m

1 stop

5:55 pm - 10:25 pm

BWI

BZN

6h 30m

1 stop

$383Southwest

Fri, Sep 4 - Tue, Sep 8

12:30 pm - 8:59 pm

BZN

DCA

6h 29m

1 stop

11:35 am - 4:13 pm

DCA

BZN

6h 38m

1 stop

$384American Airlines

Tue, Jul 14 - Tue, Jul 21

7:00 pm - 5:45 am

BZN

BWI

8h 45m

1 stop

6:30 am - 2:50 pm

BWI

BZN

10h 20m

2 stops

$388Southwest

Wed, Jul 29 - Mon, Aug 10

Delta flights from Montana to Washington, D.C.

Our best Delta deals on Montana to Washington, D.C. flight tickets

Delta

Nov 1

BZN3:15 pmBozeman Gallatin Field

6h 31m

1 stop

BWI11:46 pmBaltimore/Washington

Nov 7

BWI6:00 amBaltimore/Washington

9h 16m

1 stop

BZN1:16 pmBozeman Gallatin Field

$309

Delta

Jul 2

BZN7:30 pmBozeman Gallatin Field

8h 19m

1 stop

BWI5:49 amBaltimore/Washington

Jul 5

BWI6:19 amBaltimore/Washington

6h 03m

1 stop

BZN10:22 amBozeman Gallatin Field

$334

Delta

Aug 26

MSO1:12 pmMissoula Johnson-Bell Field

8h 27m

1 stop

IAD11:39 pmWashington, D.C. Dulles Intl

Aug 30

IAD6:49 pmWashington, D.C. Dulles Intl

6h 58m

1 stop

MSO11:47 pmMissoula Johnson-Bell Field

$349

American Airlines flights from Montana to Washington, D.C.

Our best American Airlines deals on Montana to Washington, D.C. flight tickets

American Airlines

Aug 25

MSO1:25 pmMissoula Johnson-Bell Field

8h 33m

1 stop

DCA11:58 pmWashington, D.C. Reagan-National

Aug 31

DCA5:00 amWashington, D.C. Reagan-National

9h 35m

1 stop

MSO12:35 pmMissoula Johnson-Bell Field

$364

American Airlines

Jul 14

BZN12:30 pmBozeman Gallatin Field

6h 29m

1 stop

DCA8:59 pmWashington, D.C. Reagan-National

Jul 21

DCA11:35 amWashington, D.C. Reagan-National

6h 38m

1 stop

BZN4:13 pmBozeman Gallatin Field

$384

American Airlines

Nov 5

BZN1:52 pmBozeman Gallatin Field

7h 08m

1 stop

DCA11:00 pmWashington, D.C. Reagan-National

Nov 9

DCA10:06 pmWashington, D.C. Reagan-National

16h 55m

2 stops

BZN1:01 pmBozeman Gallatin Field

$406

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Sun 11/1

3:15 pm-11:46 pm

1 stop6h 31m

Baltimore/Washington

Sat 11/7

6:00 am-1:16 pm

1 stop9h 16m

$309

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Tue 10/20

4:22 pm-6:48 am

2 stops12h 26m

Baltimore/Washington

Thu 10/29

8:15 am-1:28 pm

1 stop7h 13m

$314

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Wed 8/26

9:20 am-9:00 pm

1 stop9h 40m

Washington, D.C. Reagan-National

Sat 8/29

10:59 am-8:45 pm

1 stop11h 46m

$316

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Thu 7/2

7:30 pm-5:49 am

1 stop8h 19m

Baltimore/Washington

Sun 7/5

6:19 am-10:22 am

1 stop6h 03m

$334

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Wed 8/26

9:20 am-9:00 pm

1 stop9h 40m

Washington, D.C. Reagan-National

Sat 8/29

10:59 am-8:45 pm

1 stop11h 46m

$349

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Sat 8/15

6:33 pm-6:20 am

1 stop9h 47m

Baltimore/Washington

Tue 8/25

7:17 pm-11:30 pm

1 stop6h 13m

$349

MissoulaWashington, D.C.

MSO - DCA

MSODCA

Missoula Johnson-Bell Field

Tue 8/25

1:25 pm-11:58 pm

1 stop8h 33m

Washington, D.C. Reagan-National

Mon 8/31

5:00 am-12:35 pm

1 stop9h 35m

$364

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Fri 9/4

11:25 am-9:00 pm

1 stop7h 35m

Baltimore/Washington

Tue 9/8

5:55 pm-10:25 pm

1 stop6h 30m

$383

Quickest round-trip

BozemanWashington, D.C.

BZN - DCA

BZNDCA

Bozeman Gallatin Field

Tue 7/14

12:30 pm-8:59 pm

1 stop6h 29m

Washington, D.C. Reagan-National

Tue 7/21

11:35 am-4:13 pm

1 stop6h 38m

$384

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Wed 7/29

7:00 pm-5:45 am

1 stop8h 45m

Baltimore/Washington

Mon 8/10

6:30 am-2:50 pm

2 stops10h 20m

$388

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montana to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

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Other information

What is the cheapest month to fly to Washington, D.C.?

The month of June is, on average, the cheapest month to fly to Washington, D.C. from Montana, with most prices found around $171. If you’re not able to fly to Washington, D.C. in June, then October is your next best option. Flight prices from Montana to Washington, D.C. during October average around $214.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Montana is on a Friday. momondo users have found tickets for Friday departures for as low as $672. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Montana to Washington, D.C. for around $929.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At noon is the cheapest time of day to fly from Montana to Washington, D.C. when you can find flight prices for as low as $649. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $844. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Montana to Washington, D.C. flight route?

Fly from Bozeman Gallatin Field to Washington, D.C. Dulles Intl for the best Montana - Washington, D.C. flight prices

What cabin class options are available on Montana to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Montana to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montana to Washington, D.C. flights?

You could potentially save up to 37% on your flight if you consider stops on a Montana to Washington, D.C. flight.

Cheap Montana to Washington, D.C. flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Washington, D.C.

Fastest flight time	4h 08m
Direct flights	Mon and Sun
Airports in Washington, D.C.	2 airports

The fastest flight from Montana to Washington, D.C. takes 4h 08m

Direct flights go from Montana to Washington, D.C. on Monday and Sunday. The only airline offering direct flights is United Airlines.

There are 2 airports in Washington, D.C.. From Montana there are direct flights to Washington, D.C. Dulles Intl (IAD).

Search flight deals

Frequently asked questions about flying from Montana to Washington, D.C.

When did momondo last update prices for flights from Montana to Washington, D.C.?
Prices for flights from Montana to Washington, D.C. are updated daily.
How many operators does momondo search for flights from Montana to Washington, D.C.?
There are 5 operators available for flights from Montana to Washington, D.C. as of June 2026.
How old do you have to be to fly from Montana to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montana to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Montana to Washington, D.C. is Boeing 737 MAX 8 (30.00% of total bookings). The next most popular plane models are Boeing 737-800 (30.00%), Airbus A319 (10.00%), and Airbus A318/A319/A320/A321 (10.00%).

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

Compare and see reviews for airlines that fly from Montana to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $241	Free Cancellation	Rating 8.0 4,256 reviews	Search Southwest flights
Delta	PriceFrom $248	Free Cancellation	Rating 7.8 8,395 reviews	Search Delta flights
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 9,774 reviews	Search United Airlines flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,641 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $384	Free Cancellation	Rating 7.9 12,464 reviews	Search Alaska Airlines flights

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Gaithersburg

Fredericksburg

Colonial Beach

Silver Spring

Rockville

Towson

Linthicum Heights

Manassas

Tysons

Springfield

Fairfax

Bethesda

College Park

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montana to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Montana to Washington, D.C. with flexible booking policies on momondo?

All flight searches from Montana to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Montana to Washington, D.C.?

momondo helps you find the best flight between Montana and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Montana to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Montana to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Fly into one of these airports located in Washington, D.C.

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Cheap flights from Montana to Washington, D.C. from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Washington, D.C. departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Montana to Washington, D.C.

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How to get the cheapest flight ticket from Montana to Washington, D.C.

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

What is the cheapest Montana to Washington, D.C. flight route?

What cabin class options are available on Montana to Washington, D.C. flights?

Can stopping save me money on Montana to Washington, D.C. flights?

What is the cheapest airline that flies from Montana to Washington, D.C.?

What airlines fly to Washington, D.C.?

How many flights depart from Montana to Washington, D.C. on average per week?

How long does it take to fly to Washington, D.C.?

Cheap Montana to Washington, D.C. flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Washington, D.C.

Fastest flight time

Direct flights

Airports in Washington, D.C.

Frequently asked questions about flying from Montana to Washington, D.C.

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

Compare and see reviews for airlines that fly from Montana to Washington, D.C. with momondo

Traveling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

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Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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