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

Delta, American Airlines, 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 75% of people opting to fly with this airline when traveling to Montana. Keep in mind that there are 4 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 4 as of April 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.

$141 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.

6:18 am - 3:00 pm

IAD

FCA

10h 42m

1 stop

12:25 pm - 10:47 pm

FCA

IAD

8h 22m

1 stop

$309American Airlines

Tue, Jun 2 - Wed, Jun 3

11:15 am - 11:14 pm

IAD

FCA

13h 59m

2 stops

3:33 pm - 11:20 pm

FCA

IAD

5h 47m

1 stop

$314Delta

Wed, Jun 3 - Tue, Jun 9

11:15 am - 11:14 pm

IAD

FCA

13h 59m

2 stops

3:33 pm - 11:20 pm

FCA

IAD

5h 47m

1 stop

$339Delta

Wed, Jun 3 - Tue, Jun 9

11:15 am - 11:14 pm

IAD

FCA

13h 59m

2 stops

6:55 am - 6:41 pm

FCA

IAD

9h 46m

2 stops

$344Delta

Wed, Jun 3 - Tue, Jun 9

2:53 pm - 10:44 pm

IAD

BIL

9h 51m

1 stop

7:00 am - 5:54 pm

BIL

IAD

8h 54m

1 stop

$351American Airlines

Sat, Aug 29 - Wed, Sep 9

6:00 am - 6:12 pm

IAD

GTF

14h 12m

1 stop

6:52 pm - 7:34 am

GTF

IAD

10h 42m

1 stop

$352Alaska Airlines

Wed, Jun 3 - Mon, Jun 8

5:38 pm - 11:58 pm

IAD

FCA

8h 20m

1 stop

11:33 am - 11:59 pm

FCA

IAD

10h 26m

1 stop

$359Alaska Airlines

Wed, May 20 - Sun, May 24

3:56 pm - 9:17 pm

IAD

BIL

7h 21m

1 stop

2:25 pm - 11:32 pm

BIL

IAD

7h 07m

1 stop

$379United Airlines

Tue, Jun 2 - Tue, Jun 9

8:15 am - 10:45 am

IAD

BZN

4h 30mnonstop

8:30 am - 5:13 pm

BZN

IAD

6h 43m

1 stop

$383United Airlines

Sat, Sep 19 - Fri, Sep 25

3:16 pm - 4:19 pm

IAD

BZN

27h 03m

1 stop

5:08 pm - 2:02 pm

BZN

IAD

18h 54m

1 stop

$397Allegiant Air

Sun, Aug 2 - Fri, Aug 7

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

Sep 2

IAD2:43 pmWashington, D.C. Dulles Intl

8h 49m

1 stop

FCA9:32 pmKalispell Glacier Park

Sep 9

FCA4:08 pmKalispell Glacier Park

6h 36m

1 stop

IAD12:44 amWashington, D.C. Dulles Intl

$366

United Airlines

Aug 18

IAD6:15 amWashington, D.C. Dulles Intl

7h 11m

1 stop

FCA11:26 amKalispell Glacier Park

Aug 20

FCA4:08 pmKalispell Glacier Park

6h 36m

1 stop

IAD12:44 amWashington, D.C. Dulles Intl

$368

United Airlines

Jun 2

IAD3:56 pmWashington, D.C. Dulles Intl

7h 21m

1 stop

BIL9:17 pmBillings Logan Intl

Jun 9

BIL2:25 pmBillings Logan Intl

7h 07m

1 stop

IAD11:32 pmWashington, D.C. Dulles Intl

$379

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

Jun 3

IAD11:15 amWashington, D.C. Dulles Intl

13h 59m

2 stops

FCA11:14 pmKalispell Glacier Park

Jun 9

FCA3:33 pmKalispell Glacier Park

5h 47m

1 stop

IAD11:20 pmWashington, D.C. Dulles Intl

$314

Delta

Jun 3

IAD11:15 amWashington, D.C. Dulles Intl

13h 59m

2 stops

FCA11:14 pmKalispell Glacier Park

Jun 9

FCA3:33 pmKalispell Glacier Park

5h 47m

1 stop

IAD11:20 pmWashington, D.C. Dulles Intl

$339

Delta

Jun 3

IAD11:15 amWashington, D.C. Dulles Intl

13h 59m

2 stops

FCA11:14 pmKalispell Glacier Park

Jun 9

FCA6:55 amKalispell Glacier Park

9h 46m

2 stops

IAD6:41 pmWashington, D.C. Dulles Intl

$344

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

Cheapest round-trip

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Tue 6/2

6:18 am-3:00 pm

1 stop10h 42m

Kalispell Glacier Park

Wed 6/3

12:25 pm-10:47 pm

1 stop8h 22m

$309

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Wed 6/3

11:15 am-11:14 pm

2 stops13h 59m

Kalispell Glacier Park

Tue 6/9

3:33 pm-11:20 pm

1 stop5h 47m

$314

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Wed 6/3

11:15 am-11:14 pm

2 stops13h 59m

Kalispell Glacier Park

Tue 6/9

3:33 pm-11:20 pm

1 stop5h 47m

$339

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Wed 6/3

11:15 am-11:14 pm

2 stops13h 59m

Kalispell Glacier Park

Tue 6/9

6:55 am-6:41 pm

2 stops9h 46m

$344

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 8/29

2:53 pm-10:44 pm

1 stop9h 51m

Billings Logan Intl

Wed 9/9

7:00 am-5:54 pm

1 stop8h 54m

$351

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Wed 6/3

6:00 am-6:12 pm

1 stop14h 12m

Great Falls

Mon 6/8

6:52 pm-7:34 am

1 stop10h 42m

$352

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Wed 5/20

5:38 pm-11:58 pm

1 stop8h 20m

Kalispell Glacier Park

Sun 5/24

11:33 am-11:59 pm

1 stop10h 26m

$359

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Tue 6/2

3:56 pm-9:17 pm

1 stop7h 21m

Billings Logan Intl

Tue 6/9

2:25 pm-11:32 pm

1 stop7h 07m

$379

Quickest round-trip

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 9/19

8:15 am-10:45 am

Nonstop4h 30m

Bozeman Gallatin Field

Fri 9/25

8:30 am-5:13 pm

1 stop6h 43m

$383

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sun 8/2

3:16 pm-4:19 pm

1 stop27h 03m

Bozeman Gallatin Field

Fri 8/7

5:08 pm-2:02 pm

1 stop18h 54m

$397

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 January. Flight prices, which tend to average around $359, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Montana, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $380.

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 $550.

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 $460 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 $365 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?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to Montana.

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	$518
Fastest flight time	3h 30m
Direct flights	Mon and Sun
Airports in Montana	32 airports

The best flight deal from Washington, D.C. Dulles Intl Airport to Montana found on momondo in the last 72 hours is $518

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. There are no airlines offering direct flights.

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

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

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 4 as of April 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 (86.30% of total bookings). The next most popular plane models are Airbus A319 (8.22%), Boeing 737-700 (2.74%), and Boeing 737-800 (1.37%).

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 8,434 reviews	Search Delta flights
Southwest	PriceFrom $242	Free Cancellation	Rating 8.0 4,331 reviews	Search Southwest flights
United Airlines	PriceFrom $280	Free Cancellation	Rating 7.4 9,613 reviews	Search United Airlines flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,645 reviews	Search American 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.