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$116+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$231
(American Airlines)

One-way from

$116
(Southwest)

Popular in

December

Cheapest in

January

Average price

$380

Good round-trip deal

$354 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. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip 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 October 14, 2025.

This Southwest deal was found by Cheapflights users on 10/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:05 amIAD - BZN
1 stop6h 30mSouthwest
Tue 11/185:30 amBZN - IAD
1 stop8h 15mSouthwest
Deal found 10/13$231
This Delta deal was found by Cheapflights users on 10/13. 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.
Mon 11/106:03 amIAD - FCA
1 stop9h 53mDelta
Wed 11/122:51 pmFCA - IAD
1 stop7h 01mDelta
Deal found 10/13$257
This Delta deal was found by Cheapflights users on 10/11. 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 11/16:00 amIAD - FCA
2 stops10h 29mDelta
Fri 11/73:24 pmFCA - IAD
1 stop6h 15mDelta
Deal found 10/11$262
This Southwest deal was found by Cheapflights users on 10/14. 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.
Wed 11/55:45 pmIAD - BZN
1 stop7h 00mSouthwest
Sun 11/95:00 amBZN - IAD
1 stop6h 10mSouthwest
Deal found 10/14$266
This Delta deal was found by Cheapflights users on 10/12. 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.
Tue 11/1110:05 amIAD - FCA
2 stops14h 55mDelta
Tue 11/185:00 amFCA - IAD
2 stops11h 26mDelta
Deal found 10/12$267
This Delta deal was found by Cheapflights users on 10/13. 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.
Sat 11/16:15 amIAD - FCA
1 stop7h 01mDelta
Tue 11/43:24 pmFCA - IAD
1 stop6h 15mDelta
Deal found 10/13$278
This Delta deal was found by Cheapflights users on 10/13. 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.
Tue 10/286:15 amIAD - FCA
1 stop7h 01mDelta
Sat 11/112:00 pmFCA - IAD
1 stop9h 33mDelta
Deal found 10/13$299
This American Airlines deal was found by Cheapflights users on 10/14. 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 11/86:04 amIAD - BZN
1 stop8h 37mAmerican Airlines
Sat 11/151:31 pmBZN - IAD
1 stop6h 57mAmerican Airlines
Deal found 10/14$301
This Delta deal was found by Cheapflights users on 10/13. 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.
Fri 11/147:15 amIAD - BZN
1 stop9h 05mDelta
Mon 11/172:16 pmBZN - IAD
2 stops8h 00mDelta
Deal found 10/13$314
This Southwest deal was found by Cheapflights users on 10/14. 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.
Tue 10/286:40 pmIAD - BZN
1 stop6h 45mSouthwest
Tue 11/45:30 amBZN - IAD
1 stop8h 15mSouthwest
Deal found 10/14$315
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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.
Thu 11/137:43 amIAD - BZN
1 stop8h 25mAlaska Airlines
Sun 11/163:02 pmBZN - IAD
2 stops24h 11mAlaska Airlines
Deal found 10/14$318
This Delta deal was found by Cheapflights users on 10/13. 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.
Thu 11/137:15 amIAD - BZN
1 stop9h 05mDelta
Sun 11/163:00 pmBZN - IAD
1 stop7h 54mDelta
Deal found 10/13$319

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 October 14, 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

Mon 11/10

6:03 am-1:56 pm

1 stop9h 53m

Kalispell Glacier Park

Wed 11/12

2:51 pm-11:52 pm

1 stop7h 01m

$257

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Wed 11/12

2:25 pm-9:44 pm

1 stop9h 19m

Kalispell Glacier Park

Wed 11/19

2:38 pm-11:15 pm

1 stop6h 37m

$257

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Mon 11/10

6:03 am-1:56 pm

1 stop9h 53m

Kalispell Glacier Park

Mon 11/17

2:51 pm-11:52 pm

1 stop7h 01m

$257

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Mon 1/26

6:15 am-1:51 pm

1 stop9h 36m

Kalispell Glacier Park

Sat 1/31

5:20 am-6:42 pm

2 stops11h 22m

$262

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Sat 11/1

6:00 am-2:29 pm

2 stops10h 29m

Kalispell Glacier Park

Fri 11/7

3:24 pm-11:39 pm

1 stop6h 15m

$262

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Tue 11/11

10:05 am-11:00 pm

2 stops14h 55m

Kalispell Glacier Park

Tue 11/18

2:51 pm-11:52 pm

1 stop7h 01m

$262

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Wed 3/4

7:00 am-3:23 pm

1 stop10h 23m

Kalispell Glacier Park

Tue 3/10

4:00 pm-5:55 am

1 stop11h 55m

$277

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Wed 1/28

6:04 pm-11:20 am

1 stop19h 16m

Bozeman Gallatin Field

Sun 2/1

7:25 am-5:04 pm

2 stops31h 39m

$283

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Sat 11/1

6:00 am-2:29 pm

2 stops10h 29m

Kalispell Glacier Park

Tue 11/4

3:24 pm-11:39 pm

1 stop6h 15m

$283

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Fri 12/5

5:45 pm-10:45 pm

1 stop7h 00m

Bozeman Gallatin Field

Sat 12/6

2:35 pm-10:15 pm

1 stop5h 40m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

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 $369). 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 October 14, 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.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Montana?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Montana. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Montana flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 14, 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
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,080 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,976 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,042 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 9h 19m. 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?

    $129 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $129 and $149, 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 - Missoula Johnson-Bell Field or Washington, D.C. Dulles Intl - Kalispell Glacier Park 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 $360 for a flight from Washington, D.C. Dulles Intl Airport to Montana. The cheapest flight overall is $350 while the most popular route, (Washington, D.C. Dulles Intl - Bozeman Gallatin Field) is currently priced at $231.

  • 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 $369). 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$236Average$448FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$242Average$455FlexibilityNo cancel feeOn-time63%
DeltaCheapest$256Average$540FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$278Average$464FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$307Average$620FlexibilityNo cancel feeOn-time69%

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