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$155+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/316:20 amIAD - BZN
1 stop9h 17mUnited Airlines
Sun 1/46:22 pmBZN - IAD
1 stop8h 57mUnited Airlines
Deal found 12/16$359
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/235:31 pmIAD - BZN
1 stop6h 58mUnited Airlines
Tue 12/306:22 pmBZN - IAD
1 stop8h 57mUnited Airlines
Deal found 12/16$419
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/316:20 amIAD - BZN
1 stop9h 17mUnited Airlines
Mon 1/54:14 pmBZN - IAD
1 stop6h 01mUnited Airlines
Deal found 12/16$425
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/182:33 pmIAD - BZN
1 stop8h 35mUnited Airlines
Thu 12/252:40 pmBZN - IAD
1 stop6h 43mUnited Airlines
Deal found 12/17$485
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/186:05 amIAD - BZN
1 stop10h 49mAmerican Airlines
Sun 12/211:36 pmBZN - IAD
1 stop7h 29mAmerican Airlines
Deal found 12/17$491
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/234:00 pmIAD - BZN
1 stop7h 08mUnited Airlines
Sat 12/274:14 pmBZN - IAD
1 stop6h 01mUnited Airlines
Deal found 12/16$499
This Delta deal was found by Cheapflights users on 12/16. 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.
Sun 12/216:00 amIAD - BZN
2 stops9h 15mDelta
Fri 12/263:20 pmBZN - IAD
1 stop6h 52mDelta
Deal found 12/16$506
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/242:24 pmIAD - FCA
1 stop9h 35mUnited Airlines
Wed 1/72:42 pmFCA - IAD
1 stop6h 40mUnited Airlines
Deal found 12/16$507
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/258:20 amIAD - BZN
1 stop9h 07mUnited Airlines
Wed 12/3111:29 amBZN - IAD
1 stop9h 37mUnited Airlines
Deal found 12/16$509
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/244:00 pmIAD - MSO
1 stop7h 41mUnited Airlines
Wed 1/76:00 amMSO - IAD
1 stop8h 35mUnited Airlines
Deal found 12/16$531
This Delta deal was found by Cheapflights users on 12/16. 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 12/1710:08 amIAD - FCA
2 stops15h 02mDelta
Wed 12/241:45 pmFCA - IAD
1 stop7h 33mDelta
Deal found 12/16$550
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/242:24 pmIAD - MSO
1 stop9h 17mUnited Airlines
Tue 1/65:15 pmMSO - IAD
1 stop18h 02mUnited Airlines
Deal found 12/16$588

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(United Airlines)

One-way from

$155
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$510

Good round-trip deal

$665 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Bozeman Gallatin Field flight deals.
Search Deals
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
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Montana
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montana.
Search Deals

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 December 18, 2025.
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

Sun 1/11

2:24 pm-9:59 pm

1 stop9h 35m

Kalispell Glacier Park

Sat 1/17

1:40 pm-12:59 am

1 stop9h 19m

$249

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Wed 1/28

2:15 pm-8:06 pm

1 stop7h 51m

Bozeman Gallatin Field

Sun 2/1

6:00 am-1:35 pm

1 stop5h 35m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Tue 2/24

7:05 am-2:08 pm

1 stop9h 03m

Bozeman Gallatin Field

Sat 2/28

7:00 am-5:20 pm

1 stop8h 20m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 2/28

7:05 am-2:08 pm

1 stop9h 03m

Bozeman Gallatin Field

Wed 3/4

7:00 am-5:20 pm

1 stop8h 20m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Thu 1/29

7:30 am-2:20 pm

1 stop8h 50m

Bozeman Gallatin Field

Sun 2/1

6:00 am-1:35 pm

1 stop5h 35m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Fri 2/20

7:30 am-2:22 pm

1 stop8h 52m

Bozeman Gallatin Field

Wed 2/25

6:00 am-1:35 pm

1 stop5h 35m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 1/10

7:30 am-2:20 pm

1 stop8h 50m

Bozeman Gallatin Field

Sat 1/17

2:49 pm-11:37 pm

1 stop6h 48m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Thu 1/29

7:30 am-2:20 pm

1 stop8h 50m

Bozeman Gallatin Field

Mon 2/2

6:30 pm-9:13 am

2 stops12h 43m

$294

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Thu 1/22

2:24 pm-9:59 pm

1 stop9h 35m

Kalispell Glacier Park

Mon 1/26

2:42 pm-11:22 pm

1 stop6h 40m

$297

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Mon 5/4

6:15 am-1:45 pm

1 stop9h 30m

Kalispell Glacier Park

Fri 5/8

3:00 pm-11:29 pm

1 stop6h 29m

$305

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montana (average of $198). Flying from Washington, D.C. Dulles Intl Airport to Montana in March is currently the most expensive (average of $374). 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 December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Montana at noon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the morning.

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 December 18, 2025.
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
11,477 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,477 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,250 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,005 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,091 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,054 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 7h 51m. Airlines will cover a distance of 1768 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 - Billings Logan Intl 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 $809 for a flight from Washington, D.C. Dulles Intl Airport to Montana. The cheapest flight overall is $509 while the most popular route, (Washington, D.C. Dulles Intl - Bozeman Gallatin Field) is currently priced at $289.

  • 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montana (average of $198). Flying from Washington, D.C. Dulles Intl Airport to Montana in March is currently the most expensive (average of $374). 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$196Average$526FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$241Average$446FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$278Average$461FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$290Average$523FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$303Average$613FlexibilityNo cancel feeOn-time69%

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