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

Delta, Southwest, and United Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Montana

What airlines fly to Montana?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Montana from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 72% of people opting to fly with this airline when traveling to Montana. Keep in mind that there are 5 different airlines that fly to Montana on a routine basis, so you have a few additional options to choose from.

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

The number of operators available for flights from Washington, D.C. Dulles Intl Airport to Montana is 5 as of March 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Montana.

What documentation or ID do you need to fly to Montana?

The required travel and health documents for your Montana trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Montana. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$122 Cheap Flights from Washington, D.C. Dulles Intl Airport to Montana in 2026

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 1:54 pm

IAD

FCA

9h 54m

1 stop

2:16 pm - 11:32 pm

FCA

IAD

7h 16m

1 stop

$249Delta

Fri, Apr 17 - Sat, Apr 25

7:00 am - 2:36 pm

IAD

BZN

9h 36m

1 stop

1:45 pm - 11:32 pm

BZN

IAD

7h 47m

1 stop

$277Delta

Wed, Apr 8 - Sat, Apr 18

7:00 am - 1:21 pm

IAD

BIL

8h 21m

1 stop

1:51 pm - 11:26 pm

BIL

IAD

7h 35m

1 stop

$279American Airlines

Tue, Apr 21 - Sat, Apr 25

6:00 am - 1:54 pm

IAD

FCA

9h 54m

1 stop

2:49 pm - 11:32 pm

FCA

IAD

6h 43m

1 stop

$279Delta

Tue, Apr 28 - Mon, May 4

7:00 am - 2:36 pm

IAD

BZN

9h 36m

1 stop

1:45 pm - 11:03 pm

BZN

IAD

7h 18m

2 stops

$282Delta

Wed, Apr 8 - Sat, Apr 18

6:15 am - 11:26 am

IAD

BZN

7h 11m

1 stop

12:35 pm - 9:18 pm

BZN

IAD

6h 43m

1 stop

$284United Airlines

Sun, May 3 - Sat, May 9

2:35 pm - 9:14 pm

IAD

BZN

8h 39m

1 stop

4:18 pm - 12:45 am

BZN

IAD

6h 27m

1 stop

$289United Airlines

Sat, May 30 - Sat, Jun 6

9:19 am - 9:38 pm

IAD

BZN

14h 19m

2 stops

1:43 pm - 11:26 pm

BZN

IAD

7h 43m

1 stop

$294American Airlines

Mon, Mar 23 - Tue, Apr 21

7:00 am - 11:57 pm

IAD

BZN

18h 57m

1 stop

7:26 pm - 5:40 am

BZN

IAD

8h 14m

1 stop

$297Alaska Airlines

Sun, Apr 5 - Wed, Apr 15

7:00 am - 5:45 pm

IAD

HLN

12h 45m

1 stop

6:22 pm - 5:40 am

HLN

IAD

9h 18m

1 stop

$309Alaska Airlines

Thu, Apr 9 - Thu, Apr 16

United Airlines flights from Washington, D.C. Dulles Intl Airport to Montana

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Montana flight tickets

United Airlines

May 3

IAD6:15 amWashington, D.C. Dulles Intl

7h 11m

1 stop

BZN11:26 amBozeman Gallatin Field

May 9

BZN12:35 pmBozeman Gallatin Field

6h 43m

1 stop

IAD9:18 pmWashington, D.C. Dulles Intl

$284

United Airlines

May 30

IAD2:35 pmWashington, D.C. Dulles Intl

8h 39m

1 stop

BZN9:14 pmBozeman Gallatin Field

Jun 6

BZN4:18 pmBozeman Gallatin Field

6h 27m

1 stop

IAD12:45 amWashington, D.C. Dulles Intl

$289

United Airlines

Aug 18

IAD2:43 pmWashington, D.C. Dulles Intl

8h 45m

1 stop

GTF9:28 pmGreat Falls

Aug 25

GTF2:31 pmGreat Falls

8h 09m

1 stop

IAD12:40 amWashington, D.C. Dulles Intl

$298

Delta flights from Washington, D.C. Dulles Intl Airport to Montana

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

Delta

Apr 17

IAD6:00 amWashington, D.C. Dulles Intl

9h 54m

1 stop

FCA1:54 pmKalispell Glacier Park

Apr 25

FCA2:16 pmKalispell Glacier Park

7h 16m

1 stop

IAD11:32 pmWashington, D.C. Dulles Intl

$249

Delta

Apr 8

IAD7:00 amWashington, D.C. Dulles Intl

9h 36m

1 stop

BZN2:36 pmBozeman Gallatin Field

Apr 18

BZN1:45 pmBozeman Gallatin Field

7h 47m

1 stop

IAD11:32 pmWashington, D.C. Dulles Intl

$277

Delta

Apr 28

IAD6:00 amWashington, D.C. Dulles Intl

9h 54m

1 stop

FCA1:54 pmKalispell Glacier Park

May 4

FCA2:49 pmKalispell Glacier Park

6h 43m

1 stop

IAD11:32 pmWashington, D.C. Dulles Intl

$279

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Montana that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Fri 4/17

6:00 am-1:54 pm

1 stop9h 54m

Kalispell Glacier Park

Sat 4/25

2:16 pm-11:32 pm

1 stop7h 16m

$249

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Wed 4/8

7:00 am-2:36 pm

1 stop9h 36m

Bozeman Gallatin Field

Sat 4/18

1:45 pm-11:32 pm

1 stop7h 47m

$277

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Tue 4/21

7:00 am-1:21 pm

1 stop8h 21m

Billings Logan Intl

Sat 4/25

1:51 pm-11:26 pm

1 stop7h 35m

$279

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Tue 4/28

6:00 am-1:54 pm

1 stop9h 54m

Kalispell Glacier Park

Mon 5/4

2:49 pm-11:32 pm

1 stop6h 43m

$279

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Wed 4/8

7:00 am-2:36 pm

1 stop9h 36m

Bozeman Gallatin Field

Sat 4/18

1:45 pm-11:03 pm

2 stops7h 18m

$282

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sun 5/3

6:15 am-11:26 am

1 stop7h 11m

Bozeman Gallatin Field

Sat 5/9

12:35 pm-9:18 pm

1 stop6h 43m

$284

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 5/30

2:35 pm-9:14 pm

1 stop8h 39m

Bozeman Gallatin Field

Sat 6/6

4:18 pm-12:45 am

1 stop6h 27m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Mon 3/23

9:19 am-9:38 pm

2 stops14h 19m

Bozeman Gallatin Field

Tue 4/21

1:43 pm-11:26 pm

1 stop7h 43m

$294

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sun 4/5

7:00 am-11:57 pm

1 stop18h 57m

Bozeman Gallatin Field

Wed 4/15

7:26 pm-5:40 am

1 stop8h 14m

$297

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 4/9

7:00 am-5:45 pm

1 stop12h 45m

Helena

Thu 4/16

6:22 pm-5:40 am

1 stop9h 18m

$309

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 Washington, D.C. Dulles Intl Airport to Montana

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

What is the cheapest month to fly to Montana?

The cheapest month to fly to Montana from Washington, D.C. Dulles Intl Airport is in April. Flight prices, which tend to average around $322, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Montana, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $359.

What is the cheapest day to depart on your flight to Montana?

Our data shows that Sunday is the least expensive day to fly to Montana. Tickets to fly out on this day can be as low as $521. The most expensive day to fly to Montana is Saturday, with ticket prices averaging around $557.

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

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

How far in advance should I book a flight to Montana?

You are more likely to see cheaper flights to Montana from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Montana for around $461 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montana from Washington, D.C. Dulles Intl Airport for as low as $358 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Montana 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 Washington, D.C. Dulles Intl Airport to Montana flights?

You could potentially save up to 13% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Montana flight.

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

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

Best Price Found	$307
Fastest flight time	3h 30m
Direct flights	Mon and Sun
Airports in Montana	32 airports

The best one-way flight to Montana from Washington, D.C. Dulles Intl Airport in the past 72 hours is $307. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Montana found on momondo in the last 72 hours is $388.

The fastest flight from Washington, D.C. Dulles Intl Airport to Montana takes 3h 30m

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

There are 32 airports in Montana. From Washington, D.C. Dulles Intl Airport there are direct flights to Bozeman Gallatin Field (BZN).

Search flight deals

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Montana?
Prices for flights from Washington, D.C. Dulles Intl Airport to Montana refresh daily.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Montana?
The number of operators available for flights from Washington, D.C. Dulles Intl Airport to Montana is 5 as of March 2026.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Montana?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Montana.
What documentation or ID do you need to fly to Montana?
The required travel and health documents for your Montana trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Montana. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Montana?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. Dulles Intl Airport to Montana is Boeing 737 MAX 8 (89.09% of total bookings). The next most popular plane models are Airbus A319 (3.64%), Boeing 737-700 (3.64%), and Boeing 737-800 (1.82%).

Best airlines flying from Washington, D.C. Dulles Intl Airport to Montana

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 8,237 reviews	Search Delta flights
Southwest	PriceFrom $241	Free Cancellation	Rating 8.0 4,306 reviews	Search Southwest flights
United Airlines	PriceFrom $280	Free Cancellation	Rating 7.4 9,375 reviews	Search United Airlines flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,369 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $290	Free Cancellation	Rating 8.0 11,974 reviews	Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Montana from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Montana quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Montana from Washington, D.C. with this policy.

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

Once you have performed a search for Washington, D.C. to Montana flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Montana, momondo offers a useful price alert feature which will track prices for flights to Montana from Washington, D.C. and alert you when they change.