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

United Airlines, Alaska Airlines, and Delta 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 81% 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 June 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.

$116 Cheap Flights from Washington, D.C. Dulles Intl Airport to Montana in 2026

Discover deals from 900+ travel sites with momondo.

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.

9:50 am - 9:40 am

IAD

FCA

25h 50m

1 stop

10:54 am - 8:04 am

FCA

IAD

19h 10m

1 stop

$300Multiple Airlines

Sun, Aug 16 - Fri, Aug 21

6:10 am - 11:28 am

IAD

FCA

7h 18m

1 stop

12:26 pm - 10:52 pm

FCA

IAD

8h 26m

1 stop

$309United Airlines

Sun, Oct 4 - Wed, Oct 7

3:27 pm - 4:18 pm

IAD

BZN

26h 51m

1 stop

10:31 am - 2:37 pm

BZN

IAD

26h 06m

1 stop

$335Allegiant Air

Sun, Aug 9 - Sat, Aug 15

3:27 pm - 4:18 pm

IAD

BZN

26h 51m

1 stop

10:31 am - 2:37 pm

BZN

IAD

26h 06m

1 stop

$338Allegiant Air

Sun, Aug 9 - Sat, Aug 15

6:49 pm - 11:16 pm

IAD

BZN

6h 27m

1 stop

3:55 pm - 11:21 pm

BZN

IAD

5h 26m

1 stop

$349Delta

Tue, Aug 25 - Tue, Sep 1

6:47 pm - 11:11 pm

IAD

BIL

6h 24m

1 stop

12:57 pm - 11:22 pm

BIL

IAD

8h 25m

1 stop

$349Delta

Mon, Sep 14 - Wed, Sep 23

7:00 am - 4:11 pm

IAD

HLN

11h 11m

1 stop

4:48 pm - 5:40 am

HLN

IAD

10h 52m

1 stop

$349Alaska Airlines

Tue, Oct 27 - Sat, Oct 31

5:08 am - 3:25 pm

IAD

BZN

12h 17m

2 stops

6:26 am - 6:27 pm

BZN

IAD

10h 01m

1 stop

$354American Airlines

Sun, Aug 23 - Sat, Aug 29

7:00 am - 2:50 pm

IAD

MSO

9h 50m

1 stop

2:06 pm - 11:59 pm

MSO

IAD

7h 53m

1 stop

$384Alaska Airlines

Tue, Oct 27 - Thu, Oct 29

6:09 am - 12:35 pm

IAD

MSO

8h 26m

1 stop

1:25 pm - 10:52 pm

MSO

IAD

7h 27m

1 stop

$420American Airlines

Wed, Sep 2 - Sun, Sep 6

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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

Oct 4

IAD6:10 amWashington, D.C. Dulles Intl

7h 18m

1 stop

FCA11:28 amKalispell Glacier Park

Oct 7

FCA12:26 pmKalispell Glacier Park

8h 26m

1 stop

IAD10:52 pmWashington, D.C. Dulles Intl

$309

United Airlines

Oct 4

IAD6:35 amWashington, D.C. Dulles Intl

8h 53m

1 stop

FCA1:28 pmKalispell Glacier Park

Oct 14

FCA12:26 pmKalispell Glacier Park

8h 26m

1 stop

IAD10:52 pmWashington, D.C. Dulles Intl

$334

United Airlines

Sep 13

IAD8:15 amWashington, D.C. Dulles Intl

4h 27m

BZN10:42 amBozeman Gallatin Field

Sep 19

BZN6:30 amBozeman Gallatin Field

9h 20m

1 stop

IAD5:50 pmWashington, D.C. Dulles Intl

$339

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

Aug 25

IAD6:49 pmWashington, D.C. Dulles Intl

6h 27m

1 stop

BZN11:16 pmBozeman Gallatin Field

Sep 1

BZN3:55 pmBozeman Gallatin Field

5h 26m

1 stop

IAD11:21 pmWashington, D.C. Dulles Intl

$349

Delta

Aug 25

IAD5:25 pmWashington, D.C. Dulles Intl

8h 53m

2 stops

MSO12:18 amMissoula Johnson-Bell Field

Sep 5

MSO6:00 amMissoula Johnson-Bell Field

5h 35m

1 stop

IAD1:35 pmWashington, D.C. Dulles Intl

$354

Delta

Oct 21

IAD4:00 pmWashington, D.C. Dulles Intl

10h 31m

2 stops

MSO12:31 amMissoula Johnson-Bell Field

Oct 25

MSO12:50 pmMissoula Johnson-Bell Field

9h 30m

2 stops

IAD12:20 amWashington, D.C. Dulles Intl

$359

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

Sun 8/16

9:50 am-9:40 am

1 stop25h 50m

Kalispell Glacier Park

Fri 8/21

10:54 am-8:04 am

1 stop19h 10m

$300

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Sun 10/4

6:10 am-11:28 am

1 stop7h 18m

Kalispell Glacier Park

Wed 10/7

12:26 pm-10:52 pm

1 stop8h 26m

$309

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sun 8/9

3:27 pm-4:18 pm

1 stop26h 51m

Bozeman Gallatin Field

Sat 8/15

10:31 am-2:37 pm

1 stop26h 06m

$335

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sun 8/9

3:27 pm-4:18 pm

1 stop26h 51m

Bozeman Gallatin Field

Sat 8/15

10:31 am-2:37 pm

1 stop26h 06m

$338

Quickest round-trip

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Tue 8/25

6:49 pm-11:16 pm

1 stop6h 27m

Bozeman Gallatin Field

Tue 9/1

3:55 pm-11:21 pm

1 stop5h 26m

$349

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Mon 9/14

6:47 pm-11:11 pm

1 stop6h 24m

Billings Logan Intl

Wed 9/23

12:57 pm-11:22 pm

1 stop8h 25m

$349

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Tue 10/27

7:00 am-4:11 pm

1 stop11h 11m

Helena

Sat 10/31

4:48 pm-5:40 am

1 stop10h 52m

$349

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sun 8/23

5:08 am-3:25 pm

2 stops12h 17m

Bozeman Gallatin Field

Sat 8/29

6:26 am-6:27 pm

1 stop10h 01m

$354

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Tue 10/27

7:00 am-2:50 pm

1 stop9h 50m

Missoula Johnson-Bell Field

Thu 10/29

2:06 pm-11:59 pm

1 stop7h 53m

$384

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Wed 9/2

6:09 am-12:35 pm

1 stop8h 26m

Missoula Johnson-Bell Field

Sun 9/6

1:25 pm-10:52 pm

1 stop7h 27m

$420

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 August. Flight prices, which tend to average around $145, are often lower during this time because this is during the off-season. The month of July is another great option to travel to Montana, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $194.

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 $549. The most expensive day to fly to Montana is Friday, with ticket prices averaging around $747.

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 from Washington, D.C. Dulles Intl Airport 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 $490 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 $333 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport 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 25% 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	$613
Fastest flight time	4h 27m
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 $613

The fastest flight from Washington, D.C. Dulles Intl Airport to Montana takes 4h 27m

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 June 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 (93.75% of total bookings). The next most popular plane models are Airbus A319 (2.08%), Boeing 737 (2.08%), and Boeing 737-800 (2.08%).

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
Southwest	PriceFrom $241	Free Cancellation	Rating 7.9 4,243 reviews	Search Southwest flights
American Airlines	PriceFrom $248	Free Cancellation	Rating 7.1 11,739 reviews	Search American Airlines flights
United Airlines	PriceFrom $276	Free Cancellation	Rating 7.4 9,875 reviews	Search United Airlines flights
Delta	PriceFrom $289	Free Cancellation	Rating 7.8 8,421 reviews	Search Delta 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.

An easier way to manage your Montana trip

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Popular cities in Montana

Flights to New Yorkfrom $62

Flights to Los Angelesfrom $56

Flights to Orlandofrom $63

Flights to Miamifrom $78

Flights to Chicagofrom $74

Flights to San Franciscofrom $50

Flights to Las Vegasfrom $56

Flights to Washington, D.C.from $57

Flights to Bostonfrom $54

Flights to Atlantafrom $58

Flights to Fort Lauderdalefrom $59

Flights to Dallasfrom $72

Cheap flights from Washington, D.C. Dulles Intl Airport to Montana from $116

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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

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

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.

See travel insights to Montana from

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

What is the cheapest month to fly to Montana?

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

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

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Montana?

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

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

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

What airlines fly 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

Fastest flight time

Direct flights

Airports in Montana

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

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

Why use momondo?

An easier way to manage your Montana trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Montana

Popular cities in Montana

Popular flights according to clicks in the last 7 days on momondo

Washington, D.C. Dulles Intl Airport flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

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