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$139+ Cheap flights from Dulles Intl (IAD) to Montana

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Dulles Intl to Montana

Keep the following information in mind while searching for Dulles Intl to Montana flight deals. Data was last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(United Airlines)

One-way from

$139
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$350

Good round-trip deal

$369 or less

Good one-way deal

$154 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Bozeman Gallatin Field flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Bozeman Gallatin Field flights.
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From Washington, D.C. Dulles Intl to Montana
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One-way flight from Washington, D.C. Dulles Intl to Montana
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Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montana.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Montana.
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Find flight deals from Dulles Intl to Montana

Cheapest flights from Dulles Intl to Montana
Explore the most affordable flight options available from Dulles Intl to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This United Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/233:58 pm
IAD
-
FCA
1 stop8h 14m
United Airlines
Fri 2/271:29 pm
FCA
-
IAD
1 stop9h 39m
United Airlines
Deal found 1/14$269
This Delta deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:00 am
IAD
-
FCA
2 stops9h 54m
Delta
Sat 4/252:49 pm
FCA
-
IAD
1 stop6h 47m
Delta
Deal found 1/14$274
This Alaska Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:05 am
IAD
-
BZN
1 stop9h 03m
Alaska Airlines
Tue 3/107:00 am
BZN
-
IAD
1 stop8h 20m
Alaska Airlines
Deal found 1/15$277
This United Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/288:30 am
IAD
-
BZN
Nonstop4h 46m
United Airlines
Wed 3/411:45 am
BZN
-
IAD
1 stop9h 36m
United Airlines
Deal found 1/13$279
This Alaska Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:05 am
IAD
-
BZN
1 stop9h 03m
Alaska Airlines
Wed 2/257:00 am
BZN
-
IAD
1 stop8h 20m
Alaska Airlines
Deal found 1/14$283
This United Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:15 am
IAD
-
BZN
1 stop7h 14m
United Airlines
Fri 5/112:30 pm
BZN
-
IAD
1 stop6h 48m
United Airlines
Deal found 1/13$285
This Delta deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
IAD
-
FCA
1 stop9h 54m
Delta
Wed 4/222:49 pm
FCA
-
IAD
1 stop6h 47m
Delta
Deal found 1/13$289
This Delta deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:25 am
IAD
-
WYS
1 stop6h 56m
Delta
Sat 8/291:09 pm
WYS
-
IAD
1 stop8h 42m
Delta
Deal found 1/15$294
This American Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:00 am
IAD
-
BZN
1 stop8h 57m
American Airlines
Tue 3/107:00 am
BZN
-
IAD
2 stops11h 29m
American Airlines
Deal found 1/14$294
This Southwest deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/64:45 pm
IAD
-
BZN
1 stop8h 00m
Southwest
Tue 3/103:25 pm
BZN
-
IAD
1 stop6h 15m
Southwest
Deal found 1/14$299
This American Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/71:08 pm
IAD
-
BZN
2 stops11h 49m
American Airlines
Sun 2/157:00 am
BZN
-
IAD
2 stops11h 30m
American Airlines
Deal found 1/14$300
This Delta deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
IAD
-
FCA
2 stops9h 54m
Delta
Fri 4/245:05 am
FCA
-
IAD
2 stops10h 52m
Delta
Deal found 1/13$300

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Montana that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
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

Dulles Intl

Fly to

Montana

Route

Depart

Return

Price

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Mon 2/23

3:58 pm-10:12 pm

1 stop8h 14m

Kalispell Glacier Park

Fri 2/27

1:29 pm-1:08 am

1 stop9h 39m

$269

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-2:08 pm

1 stop9h 03m

Bozeman Gallatin Field

Tue 3/10

7:00 am-5:20 pm

1 stop8h 20m

$277

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 2/21

7:05 am-2:08 pm

1 stop9h 03m

Bozeman Gallatin Field

Mon 2/23

3:02 pm-5:40 am

1 stop12h 38m

$283

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Thu 2/19

7:05 am-2:08 pm

1 stop9h 03m

Bozeman Gallatin Field

Tue 2/24

7:00 am-5:20 pm

1 stop8h 20m

$283

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Fri 2/20

7:05 am-2:08 pm

1 stop9h 03m

Bozeman Gallatin Field

Wed 2/25

7:00 am-5:20 pm

1 stop8h 20m

$283

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Wed 4/15

6:00 am-1:54 pm

1 stop9h 54m

Kalispell Glacier Park

Sat 4/25

2:49 pm-11:36 pm

1 stop6h 47m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sun 4/5

6:00 am-12:58 pm

1 stop8h 58m

Bozeman Gallatin Field

Sat 4/11

2:40 pm-11:34 pm

1 stop6h 54m

$289

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Wed 4/15

6:00 am-1:54 pm

1 stop9h 54m

Kalispell Glacier Park

Wed 4/22

2:49 pm-11:36 pm

1 stop6h 47m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Fri 2/20

2:17 pm-8:08 pm

1 stop7h 51m

Bozeman Gallatin Field

Wed 2/25

6:30 pm-9:13 am

2 stops12h 43m

$294

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 4/25

6:15 am-11:29 am

1 stop7h 14m

Bozeman Gallatin Field

Thu 4/30

8:30 am-5:13 pm

1 stop6h 43m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Montana

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Montana?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montana (average of $196). Flying from Washington, D.C. Dulles Intl Airport to Montana in March is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to MT?

Find hourly flight availability from Dulles Intl to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 15, 2026.

When flying from Washington, D.C. Dulles Intl Airport to Montana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Montana

Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated January 15, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Washington, D.C. Dulles Intl Airport to Montana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,721 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,258 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,051 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,164 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,136 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Montana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Montana?

    Departing from Washington, D.C. Dulles Intl Airport to Montana will take you 8h 14m. Airlines will cover a distance of 1928 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Montana one-way?

    $115 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and Southwest, with prices starting from $128 and $144, respectively.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Montana?

    Most travelers choose Washington, D.C. Dulles Intl - Bozeman Gallatin Field, Washington, D.C. Dulles Intl - Kalispell Glacier Park or Washington, D.C. Dulles Intl - Missoula Johnson-Bell Field when deciding on the best route from Washington, D.C. Dulles Intl Airport to Montana.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Montana?

    On average you can expect to pay $346 for a flight from Washington, D.C. Dulles Intl Airport to Montana. The cheapest flight overall is $144 while the most popular route, (Washington, D.C. Dulles Intl - Bozeman Gallatin Field) is currently priced at $279.

  • Can I find deals for flights from Dulles Intl to Montana that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Montana flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Montana?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Montana.

  • Can I find deals for business class flights from Dulles Intl to Montana?

    Yes. Cheapflights offers flight deals from Dulles Intl to Montana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Montana?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montana (average of $196). Flying from Washington, D.C. Dulles Intl Airport to Montana in March is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Dulles Intl to Montana

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Dulles Intl to Montana

Discover the top 5 airlines that operate flights from Dulles Intl to Montana. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$196Average$482FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$241Average$426FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$280Average$617FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$384FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$290Average$481FlexibilityNo cancel feeOn-time75%

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