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$125+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
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 9, 2025.

This United Airlines deal was found by Cheapflights users on 12/7. 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 12/256:30 amIAD - BZN
1 stop7h 09mUnited Airlines
Wed 12/314:14 pmBZN - IAD
1 stop6h 01mUnited Airlines
Deal found 12/7$358
This Southwest deal was found by Cheapflights users on 12/7. 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 12/315:45 pmIAD - BZN
1 stop7h 00mSouthwest
Wed 1/77:40 amBZN - IAD
1 stop12h 15mSouthwest
Deal found 12/7$379
This United Airlines deal was found by Cheapflights users on 12/8. 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.
Sun 12/216:20 amIAD - BZN
1 stop9h 17mUnited Airlines
Mon 12/296:22 pmBZN - IAD
1 stop8h 57mUnited Airlines
Deal found 12/8$404
This American Airlines deal was found by Cheapflights users on 12/7. 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.
Sun 12/146:00 amIAD - BZN
1 stop8h 55mAmerican Airlines
Sun 12/211:36 pmBZN - IAD
1 stop7h 29mAmerican Airlines
Deal found 12/7$419
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/226:20 amIAD - BZN
1 stop9h 17mUnited Airlines
Fri 12/267:15 amBZN - IAD
1 stop7h 09mUnited Airlines
Deal found 12/7$431
This Alaska Airlines deal was found by Cheapflights users on 12/6. 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.
Tue 12/167:34 amIAD - BZN
1 stop8h 30mAlaska Airlines
Mon 1/56:09 amBZN - IAD
1 stop22h 04mAlaska Airlines
Deal found 12/6$450
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/315:31 pmIAD - BZN
1 stop6h 58mUnited Airlines
Wed 1/76:15 amBZN - IAD
2 stops13h 05mUnited Airlines
Deal found 12/7$458
This Southwest deal was found by Cheapflights users on 12/7. 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 12/217:50 pmIAD - BZN
1 stop6h 35mSouthwest
Thu 12/255:30 amBZN - IAD
1 stop8h 15mSouthwest
Deal found 12/7$459
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/228:20 amIAD - BZN
1 stop9h 07mUnited Airlines
Wed 12/314:14 pmBZN - IAD
1 stop6h 01mUnited Airlines
Deal found 12/8$464
This Alaska Airlines deal was found by Cheapflights users on 12/6. 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 12/177:34 amIAD - BZN
1 stop8h 30mAlaska Airlines
Mon 1/56:09 amBZN - IAD
1 stop22h 04mAlaska Airlines
Deal found 12/6$477
This Alaska Airlines deal was found by Cheapflights users on 12/7. 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.
Mon 12/87:34 amIAD - FCA
1 stop18h 24mAlaska Airlines
Mon 12/156:30 amFCA - IAD
1 stop8h 06mAlaska Airlines
Deal found 12/7$483
This Delta deal was found by Cheapflights users on 12/7. 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 12/86:03 amIAD - FCA
1 stop9h 53mDelta
Mon 12/152:51 pmFCA - IAD
1 stop7h 11mDelta
Deal found 12/7$484

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 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

One-way from

$125
(Delta)

Popular in

March

Cheapest in

January

Average price

$506

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. 1% potential increase in price ($4 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.
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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 9, 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 2/9

7:00 am-2:25 pm

1 stop9h 25m

Kalispell Glacier Park

Fri 2/13

3:20 pm-11:55 pm

1 stop6h 35m

$249

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Tue 3/3

7:00 am-2:22 pm

1 stop9h 22m

Kalispell Glacier Park

Tue 3/10

2:24 pm-11:35 pm

1 stop7h 11m

$274

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 2/7

8:30 am-11:21 am

Nonstop4h 51m

Bozeman Gallatin Field

Tue 2/10

2:30 pm-11:22 pm

1 stop6h 52m

$279

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Tue 1/27

2:24 pm-9:33 pm

1 stop9h 09m

Bozeman Gallatin Field

Sat 1/31

3:00 pm-8:48 pm

Nonstop3h 48m

$279

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Tue 1/6

6:20 am-1:36 pm

1 stop9h 16m

Kalispell Glacier Park

Tue 1/13

2:42 pm-11:22 pm

1 stop6h 40m

$282

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sun 4/19

6:15 am-12:29 pm

1 stop8h 14m

Bozeman Gallatin Field

Mon 4/27

2:00 pm-12:09 am

1 stop8h 09m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Wed 4/22

6:40 pm-11:53 pm

1 stop7h 13m

Bozeman Gallatin Field

Fri 5/1

2:00 pm-12:09 am

1 stop8h 09m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Tue 1/20

2:15 pm-8:06 pm

1 stop7h 51m

Bozeman Gallatin Field

Sat 1/24

2:50 pm-12:24 am

1 stop7h 34m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Wed 3/4

7:30 am-2:22 pm

1 stop8h 52m

Bozeman Gallatin Field

Tue 3/10

2:45 pm-12:26 am

1 stop7h 41m

$289

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Wed 1/21

2:15 pm-8:06 pm

1 stop7h 51m

Bozeman Gallatin Field

Sat 1/24

2:50 pm-12:24 am

1 stop7h 34m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

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 9, 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 9, 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
11,423 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

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
11,423 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

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
4,253 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

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
8,007 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

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
9,092 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

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
11,048 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

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 4h 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 $269.

  • 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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Reagan-National to George Bush Intcntl flights
Dulles Intl to Salt Lake City flights
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Baltimore to Seattle flights
Baltimore to Boston flights
Reagan-National to Sky Harbor Intl flights

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 9, 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$308Average$615FlexibilityNo cancel feeOn-time69%

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