What airlines fly to District of Columbia?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to District of Columbia from Montana according to our data. United Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 5 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Montana to District of Columbia?

Southwest, Alaska Airlines, and United Airlines are the most popular carriers operating from Montana to District of Columbia

How long is the flight from Montana to District of Columbia?

On average, it takes 3h 47m to fly from Montana to District of Columbia if you fly out of Bozeman (the most popular airport in Montana) and into Washington, D.C. Dulles Intl Airport (the most popular airport in District of Columbia). If you’re flying out of Billings and into Washington, D.C. Dulles Intl Airport, then the flight time is around 5h 33m.

How many flights depart from Montana to District of Columbia on average per week?

As of August 2026, 5 flights take off from Montana and land in District of Columbia each week. The most common flight departure day for this route is Sat, with 40% of weekly flights taking off on this day.

When did momondo last update prices for flights from Montana to District of Columbia?

Prices for flights from Montana to District of Columbia are refreshed on a daily basis.

How many operators does momondo search for flights from Montana to District of Columbia?

The number of operators available for flights from Montana to District of Columbia is 4 as of August 2026.

How old do you have to be to fly from Montana to District of Columbia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montana to District of Columbia.

What documentation or ID do you need to fly to District of Columbia?

The travel and health documents you'll need for your trip to District of Columbia 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 District of Columbia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$123 Cheap Flights from Montana to District of Columbia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montana to District of Columbia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:05 am - 6:55 pmBZN Bozeman Gallatin Field-DCA Washington, D.C. Reagan-National

8h 50m2 stops Denver Intl Lambert-St Louis

6:10 am - 2:50 pmDCA Washington, D.C. Reagan-National-BZN Bozeman Gallatin Field

10h 40m2 stops Chicago Midway Denver Intl

$287Southwest

Wed, Dec 9 - Mon, Dec 14

2:00 pm - 11:55 pmBZN Bozeman Gallatin Field-DCA Washington, D.C. Reagan-National

7h 55m2 stops Denver Intl Nashville Intl

4:00 pm - 10:30 pmDCA Washington, D.C. Reagan-National-BZN Bozeman Gallatin Field

8h 30m2 stops Atlanta Hartsfield-Jackson Denver Intl

$308Southwest

Wed, Sep 2 - Sun, Sep 6

6:30 am - 2:55 pmGTF Great Falls-DCA Washington, D.C. Reagan-National

6h 25m1 stop Denver Intl

4:07 pm - 9:20 pmDCA Washington, D.C. Reagan-National-GTF Great Falls

7h 13m1 stop Denver Intl

$348United Airlines

Thu, Nov 26 - Sat, Dec 5

2:37 pm - 11:25 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

6h 48m1 stop Denver Intl

2:43 pm - 9:22 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

8h 39m1 stop Denver Intl

$348United Airlines

Tue, Oct 20 - Sat, Oct 24

6:27 pm - 9:19 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 52m2 stops Salt Lake City Atlanta Hartsfield-Jackson

6:13 am - 12:38 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

8h 25m1 stop Salt Lake City

$354Delta

Tue, Oct 20 - Sat, Oct 24

6:26 am - 1:48 pmBIL Billings Logan Intl-DCA Washington, D.C. Reagan-National

5h 22m1 stop Minneapolis St Paul

2:59 pm - 8:12 pmDCA Washington, D.C. Reagan-National-BIL Billings Logan Intl

7h 13m1 stop Minneapolis St Paul

$359Delta

Thu, Sep 3 - Sun, Sep 6

12:22 pm - 8:59 pmBIL Billings Logan Intl-DCA Washington, D.C. Reagan-National

6h 37m1 stop Chicago O'Hare Intl

7:35 am - 11:50 amDCA Washington, D.C. Reagan-National-BIL Billings Logan Intl

6h 15m1 stop Chicago O'Hare Intl

$359American Airlines

Thu, Sep 3 - Sun, Sep 6

1:42 pm - 11:29 pmBZN Bozeman Gallatin Field-IAD Washington, D.C. Dulles Intl

7h 47m1 stop Dallas/Fort Worth

7:14 am - 12:52 pmIAD Washington, D.C. Dulles Intl-BZN Bozeman Gallatin Field

7h 38m1 stop Dallas/Fort Worth

$359American Airlines

Wed, Dec 9 - Mon, Dec 14

7:29 pm - 5:40 amBIL Billings Logan Intl-IAD Washington, D.C. Dulles Intl

8h 11m1 stop Seattle/Tacoma Intl

5:57 pm - 11:40 amIAD Washington, D.C. Dulles Intl-BIL Billings Logan Intl

19h 43m1 stop Seattle/Tacoma Intl

$359Alaska Airlines

Tue, Sep 15 - Tue, Sep 22

4:16 pm - 5:40 amMSO Missoula Johnson-Bell Field-IAD Washington, D.C. Dulles Intl

11h 24m1 stop Seattle/Tacoma Intl

7:02 am - 2:50 pmIAD Washington, D.C. Dulles Intl-MSO Missoula Johnson-Bell Field

9h 48m1 stop Seattle/Tacoma Intl

$389Alaska Airlines

Thu, Oct 1 - Mon, Oct 5

Cheap last minute flights

Enter your travel dates to find the best prices.

3:55 pm - 11:50 pmBZN Bozeman Gallatin Field-DCA Washington, D.C. Reagan-National

5h 55m1 stop Minneapolis St Paul

6:05 am - 10:21 amDCA Washington, D.C. Reagan-National-BZN Bozeman Gallatin Field

6h 16m1 stop Minneapolis St Paul

$489Delta

Fri, Aug 21 - Wed, Sep 2

3:55 pm - 11:50 pmBZN Bozeman Gallatin Field-DCA Washington, D.C. Reagan-National

5h 55m1 stop Minneapolis St Paul

6:00 am - 1:05 pmDCA Washington, D.C. Reagan-National-BZN Bozeman Gallatin Field

9h 05m1 stop Atlanta Hartsfield-Jackson

$489Delta

Fri, Aug 21 - Sun, Aug 30

2:21 pm - 5:40 amBZN Bozeman Gallatin Field-IAD Washington, D.C. Dulles Intl

13h 19m1 stop Seattle/Tacoma Intl

7:35 pm - 8:45 pmIAD Washington, D.C. Dulles Intl-BZN Bozeman Gallatin Field

27h 10m1 stop San Diego

$489Alaska Airlines

Wed, Aug 19 - Fri, Aug 28

6:19 am - 1:48 pmBZN Bozeman Gallatin Field-DCA Washington, D.C. Reagan-National

5h 29m1 stop Minneapolis St Paul

6:00 am - 1:05 pmDCA Washington, D.C. Reagan-National-BZN Bozeman Gallatin Field

9h 05m1 stop Atlanta Hartsfield-Jackson

$489Delta

Fri, Aug 21 - Tue, Sep 1

8:20 am - 5:37 pmFCA Kalispell Glacier Park-IAD Washington, D.C. Dulles Intl

7h 17m1 stop Chicago O'Hare Intl

1:10 pm - 6:54 pmIAD Washington, D.C. Dulles Intl-FCA Kalispell Glacier Park

7h 44m1 stop Chicago O'Hare Intl

$549United Airlines

Thu, Aug 20 - Fri, Aug 28

4:32 pm - 12:32 amBZN Bozeman Gallatin Field-IAD Washington, D.C. Dulles Intl

6h 00m1 stop Denver Intl

2:43 pm - 9:19 pmIAD Washington, D.C. Dulles Intl-BZN Bozeman Gallatin Field

8h 36m1 stop Denver Intl

$549United Airlines

Thu, Aug 20 - Tue, Aug 25

12:30 pm - 9:59 pmBZN Bozeman Gallatin Field-DCA Washington, D.C. Reagan-National

7h 29m1 stop Charlotte Douglas

6:16 am - 12:03 pmDCA Washington, D.C. Reagan-National-BZN Bozeman Gallatin Field

7h 47m1 stop Charlotte Douglas

$549American Airlines

Thu, Aug 20 - Sun, Aug 23

12:30 pm - 9:59 pmBZN Bozeman Gallatin Field-DCA Washington, D.C. Reagan-National

7h 29m1 stop Charlotte Douglas

5:00 am - 12:05 pmDCA Washington, D.C. Reagan-National-BZN Bozeman Gallatin Field

9h 05m2 stops Charlotte Douglas Chicago O'Hare Intl

$554American Airlines

Thu, Aug 20 - Sun, Aug 23

2:21 pm - 5:40 amBZN Bozeman Gallatin Field-IAD Washington, D.C. Dulles Intl

13h 19m1 stop Seattle/Tacoma Intl

7:35 pm - 8:45 pmIAD Washington, D.C. Dulles Intl-BZN Bozeman Gallatin Field

27h 10m1 stop San Diego

$554Alaska Airlines

Wed, Aug 19 - Fri, Aug 28

11:22 am - 10:59 pmBZN Bozeman Gallatin Field-DCA Washington, D.C. Reagan-National

9h 37m1 stop New York John F Kennedy Intl

6:10 am - 11:12 amDCA Washington, D.C. Reagan-National-BZN Bozeman Gallatin Field

7h 02m1 stop New York John F Kennedy Intl

$618JetBlue

Thu, Aug 20 - Sat, Sep 5

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Montana to District of Columbia

Our best United Airlines deals on Montana to District of Columbia flight tickets

United Airlines

Oct 20

GTF2:37 pmGreat Falls

6h 48m

1 stop

IAD11:25 pmWashington, D.C. Dulles Intl

Oct 24

IAD2:43 pmWashington, D.C. Dulles Intl

8h 39m

1 stop

GTF9:22 pmGreat Falls

$348

United Airlines

Sep 2

BZN10:30 amBozeman Gallatin Field

8h 38m

1 stop

IAD9:08 pmWashington, D.C. Dulles Intl

Sep 6

IAD8:15 amWashington, D.C. Dulles Intl

4h 27m

BZN10:42 amBozeman Gallatin Field

$349

United Airlines

Sep 18

BZN4:32 pmBozeman Gallatin Field

6h 00m

1 stop

IAD12:32 amWashington, D.C. Dulles Intl

Sep 22

IAD6:15 amWashington, D.C. Dulles Intl

7h 25m

1 stop

BZN11:40 amBozeman Gallatin Field

$359

Delta flights from Montana to District of Columbia

Our best Delta deals on Montana to District of Columbia flight tickets

Delta

Oct 20

GTF6:27 pmGreat Falls

12h 52m

2 stops

IAD9:19 amWashington, D.C. Dulles Intl

Oct 24

IAD6:13 amWashington, D.C. Dulles Intl

8h 25m

1 stop

GTF12:38 pmGreat Falls

$354

Delta

Oct 27

MSO1:14 pmMissoula Johnson-Bell Field

8h 21m

1 stop

IAD11:35 pmWashington, D.C. Dulles Intl

Nov 2

IAD6:13 amWashington, D.C. Dulles Intl

8h 21m

1 stop

MSO12:34 pmMissoula Johnson-Bell Field

$359

Delta

Oct 26

MSO6:23 pmMissoula Johnson-Bell Field

12h 56m

2 stops

IAD9:19 amWashington, D.C. Dulles Intl

Nov 4

IAD2:28 pmWashington, D.C. Dulles Intl

7h 26m

1 stop

MSO7:54 pmMissoula Johnson-Bell Field

$364

momondo Fare Finder

Use the filters below to find and compare flights from Montana to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanWashington, D.C.

BZN Bozeman Gallatin Field - DCA Washington, D.C. Reagan-National

BZNDCA

Bozeman Gallatin Field

Wed 12/9

8:05 am-6:55 pm

2 stops8h 50m

Washington, D.C. Reagan-National

Mon 12/14

6:10 am-2:50 pm

2 stops10h 40m

$287

BozemanWashington, D.C.

BZN Bozeman Gallatin Field - DCA Washington, D.C. Reagan-National

BZNDCA

Bozeman Gallatin Field

Wed 9/2

2:00 pm-11:55 pm

2 stops7h 55m

Washington, D.C. Reagan-National

Sun 9/6

4:00 pm-10:30 pm

2 stops8h 30m

$308

Great FallsWashington, D.C.

GTF Great Falls - DCA Washington, D.C. Reagan-National

GTFDCA

Great Falls

Thu 11/26

6:30 am-2:55 pm

1 stop6h 25m

Washington, D.C. Reagan-National

Sat 12/5

4:07 pm-9:20 pm

1 stop7h 13m

$348

Great FallsWashington, D.C.

GTF Great Falls - IAD Washington, D.C. Dulles Intl

GTFIAD

Great Falls

Tue 10/20

2:37 pm-11:25 pm

1 stop6h 48m

Washington, D.C. Dulles Intl

Sat 10/24

2:43 pm-9:22 pm

1 stop8h 39m

$348

Great FallsWashington, D.C.

GTF Great Falls - IAD Washington, D.C. Dulles Intl

GTFIAD

Great Falls

Tue 10/20

6:27 pm-9:19 am

2 stops12h 52m

Washington, D.C. Dulles Intl

Sat 10/24

6:13 am-12:38 pm

1 stop8h 25m

$354

Quickest round-trip

BillingsWashington, D.C.

BIL Billings Logan Intl - DCA Washington, D.C. Reagan-National

BILDCA

Billings Logan Intl

Thu 9/3

6:26 am-1:48 pm

1 stop5h 22m

Washington, D.C. Reagan-National

Sun 9/6

2:59 pm-8:12 pm

1 stop7h 13m

$359

BillingsWashington, D.C.

BIL Billings Logan Intl - DCA Washington, D.C. Reagan-National

BILDCA

Billings Logan Intl

Thu 9/3

12:22 pm-8:59 pm

1 stop6h 37m

Washington, D.C. Reagan-National

Sun 9/6

7:35 am-11:50 am

1 stop6h 15m

$359

BozemanWashington, D.C.

BZN Bozeman Gallatin Field - IAD Washington, D.C. Dulles Intl

BZNIAD

Bozeman Gallatin Field

Wed 12/9

1:42 pm-11:29 pm

1 stop7h 47m

Washington, D.C. Dulles Intl

Mon 12/14

7:14 am-12:52 pm

1 stop7h 38m

$359

BillingsWashington, D.C.

BIL Billings Logan Intl - IAD Washington, D.C. Dulles Intl

BILIAD

Billings Logan Intl

Tue 9/15

7:29 pm-5:40 am

1 stop8h 11m

Washington, D.C. Dulles Intl

Tue 9/22

5:57 pm-11:40 am

1 stop19h 43m

$359

MissoulaWashington, D.C.

MSO Missoula Johnson-Bell Field - IAD Washington, D.C. Dulles Intl

MSOIAD

Missoula Johnson-Bell Field

Thu 10/1

4:16 pm-5:40 am

1 stop11h 24m

Washington, D.C. Dulles Intl

Mon 10/5

7:02 am-2:50 pm

1 stop9h 48m

$389

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 District of Columbia

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

Airlines

Other information

What is the cheapest month to fly to District of Columbia?

In general, January is the cheapest month to fly from Montana to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $378. If you don’t want to visit District of Columbia in January, then you should wait until February to fly from Montana, when ticket prices are also cheap, with an average price of $450.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Saturday when prices can be found for as low as $649. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Montana because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,106.

What is the cheapest time of day to depart on your flight to District of Columbia?

Flying to District of Columbia from Montana at noon is the least expensive time of day to depart. momondo users have found prices as low as $649 when looking at flights departing at noon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $768. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Montana to District of Columbia flight route?

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

What cabin class options are available on Montana to District of Columbia flights?

There is only 1 cabin class available to choose from on Montana to District of Columbia 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 District of Columbia flights?

You could potentially save up to 1% on your flight if you consider stops on a Montana to District of Columbia flight.

Cheap Montana to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to District of Columbia

Fastest flight time	3h 47m
Direct flights	Mon and Sun
Airports in District of Columbia	2 airports

The fastest flight from Montana to District of Columbia takes 3h 47m

Direct flights go from Montana to District of Columbia on Monday and Sunday. There are no airlines offering direct flights.

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

Search flight deals

Frequently asked questions about flying from Montana to District of Columbia

When did momondo last update prices for flights from Montana to District of Columbia?
Prices for flights from Montana to District of Columbia are refreshed on a daily basis.
How many operators does momondo search for flights from Montana to District of Columbia?
The number of operators available for flights from Montana to District of Columbia is 4 as of August 2026.
How old do you have to be to fly from Montana to District of Columbia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montana to District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The travel and health documents you'll need for your trip to District of Columbia 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 District of Columbia. 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 District of Columbia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Montana to District of Columbia is Boeing 737-800 (50.00% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (16.67%), Airbus A319 (16.67%), and Boeing 757 (16.67%).

Best airlines flying from Montana to District of Columbia

Compare and see reviews for airlines that fly from Montana to District of Columbia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 10,105 reviews	Search United Airlines flights
Delta	PriceFrom $249	Free Cancellation	Rating 7.8 8,502 reviews	Search Delta flights
American Airlines	PriceFrom $269	Free Cancellation	Rating 7.1 11,947 reviews	Search American Airlines flights
Southwest	PriceFrom $308	Free Cancellation	Rating 8.0 4,217 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $384	Free Cancellation	Rating 7.9 12,808 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Montana to District of Columbia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to District of Columbia from Montana.

Can I find flights from Montana to District of Columbia with flexible booking policies on momondo?

momondo does allow users to show only those flights to District of Columbia from Montana which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Montana to District of Columbia?

Once all potential Montana to District of Columbia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Montana to District of Columbia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Montana to District of Columbia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to District of Columbia and let you know when they change.