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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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
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 March 24, 2026.

This United Airlines deal was found by Cheapflights users on 3/21. 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 5/256:10 am
IAD
-
FCA
1 stop7h 19m
United Airlines
Fri 5/2912:35 pm
FCA
-
IAD
1 stop6h 47m
United Airlines
Deal found 3/21$309
This Delta deal was found by Cheapflights users on 3/22. 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 5/512:12 pm
IAD
-
FCA
2 stops13h 15m
Delta
Tue 5/126:07 pm
FCA
-
IAD
2 stops13h 09m
Delta
Deal found 3/22$319
This United Airlines deal was found by Cheapflights users on 3/22. 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 5/248:15 am
IAD
-
BZN
Nonstop4h 34m
United Airlines
Sat 5/3010:20 am
BZN
-
IAD
Nonstop4h 08m
United Airlines
Deal found 3/22$329
This United Airlines deal was found by Cheapflights users on 3/19. 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 8/2910:13 am
IAD
-
FCA
1 stop7h 40m
United Airlines
Sat 9/54:08 pm
FCA
-
IAD
1 stop6h 36m
United Airlines
Deal found 3/19$330
This Southwest deal was found by Cheapflights users on 3/23. 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.
Sat 5/95:05 pm
IAD
-
BZN
1 stop6h 35m
Southwest
Fri 5/154:20 pm
BZN
-
IAD
1 stop6h 00m
Southwest
Deal found 3/23$334
This Delta deal was found by Cheapflights users on 3/21. 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 4/246:00 am
IAD
-
FCA
1 stop9h 54m
Delta
Thu 4/302:49 pm
FCA
-
IAD
1 stop6h 43m
Delta
Deal found 3/21$334
This United Airlines deal was found by Cheapflights users on 3/20. 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 8/298:15 am
IAD
-
BZN
Nonstop4h 30m
United Airlines
Sun 9/612:45 pm
BZN
-
IAD
1 stop7h 51m
United Airlines
Deal found 3/20$335
This United Airlines deal was found by Cheapflights users on 3/20. 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 5/306:30 am
IAD
-
BZN
1 stop8h 50m
United Airlines
Sat 6/610:20 am
BZN
-
IAD
Nonstop4h 08m
United Airlines
Deal found 3/20$339
This American Airlines deal was found by Cheapflights users on 3/23. 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 6/36:18 am
IAD
-
FCA
1 stop10h 42m
American Airlines
Tue 6/91:25 pm
FCA
-
IAD
2 stops8h 48m
American Airlines
Deal found 3/23$339
This United Airlines deal was found by Cheapflights users on 3/23. 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 9/12:43 pm
IAD
-
GTF
1 stop8h 45m
United Airlines
Thu 9/102:31 pm
GTF
-
IAD
1 stop6h 53m
United Airlines
Deal found 3/23$342
This United Airlines deal was found by Cheapflights users on 3/23. 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 8/153:02 pm
IAD
-
BZN
1 stop7h 37m
United Airlines
Sat 8/2212:45 pm
BZN
-
IAD
1 stop7h 51m
United Airlines
Deal found 3/23$344
This Delta deal was found by Cheapflights users on 3/24. 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 4/87:00 am
IAD
-
FCA
1 stop8h 28m
Delta
Sat 4/182:16 pm
FCA
-
IAD
1 stop7h 16m
Delta
Deal found 3/24$344

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 March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(United Airlines)

One-way from

$155
(Delta)

Popular in

December

Cheapest in

January

Average price

$468

Good round-trip deal

$571 or less

Good one-way deal

$283 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.
Search Deals
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. 2% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montana.
Search Deals
Price to beat on a one-way 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 March 24, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Tue 4/21

12:37 pm-11:27 pm

2 stops12h 50m

Kalispell Glacier Park

Mon 4/27

2:49 pm-11:32 pm

1 stop6h 43m

$339

Washington, D.C.Kalispell

IAD - FCA

IADFCA

Washington, D.C. Dulles Intl

Fri 8/21

6:15 am-11:26 am

1 stop7h 11m

Kalispell Glacier Park

Thu 8/27

4:08 pm-12:44 am

1 stop6h 36m

$344

Washington, D.C.West Yellowstone

IAD - WYS

IADWYS

Washington, D.C. Dulles Intl

Fri 8/28

6:30 am-1:20 pm

1 stop8h 50m

West Yellowstone

Fri 9/4

2:02 pm-12:40 am

1 stop8h 38m

$354

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 4/25

3:00 pm-10:02 pm

2 stops9h 02m

Bozeman Gallatin Field

Sat 5/2

1:45 pm-11:32 pm

1 stop7h 47m

$354

Washington, D.C.Bozeman

IAD - BZN

IADBZN

Washington, D.C. Dulles Intl

Sat 4/18

6:00 am-12:34 pm

2 stops8h 34m

Bozeman Gallatin Field

Wed 4/22

5:59 am-8:52 pm

2 stops12h 53m

$359

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 5/2

1:00 pm-10:24 pm

2 stops11h 24m

Billings Logan Intl

Mon 5/4

6:18 pm-9:15 am

2 stops12h 57m

$359

Washington, D.C.Billings

IAD - BIL

IADBIL

Washington, D.C. Dulles Intl

Sat 4/18

11:04 am-8:06 pm

2 stops11h 02m

Billings Logan Intl

Sat 4/25

11:33 am-11:32 pm

2 stops9h 59m

$359

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Sat 8/29

6:30 am-12:32 pm

1 stop8h 02m

Missoula Johnson-Bell Field

Wed 9/9

6:35 am-4:26 pm

1 stop7h 51m

$369

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Sat 8/29

5:15 pm-12:24 am

2 stops9h 09m

Missoula Johnson-Bell Field

Wed 9/9

3:27 pm-11:29 pm

1 stop6h 02m

$374

Washington, D.C.Missoula

IAD - MSO

IADMSO

Washington, D.C. Dulles Intl

Wed 5/27

6:00 am-2:40 pm

2 stops10h 40m

Missoula Johnson-Bell Field

Sat 5/30

3:30 pm-11:39 pm

1 stop6h 09m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 $333). 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 March 24, 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 March 24, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta 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.
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,329 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,102 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,320 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,469 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,492 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 11m. 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 $523 for a flight from Washington, D.C. Dulles Intl Airport to Montana. The cheapest flight overall is $273 while the most popular route, (Washington, D.C. Dulles Intl - Bozeman Gallatin Field) is currently priced at $329.

  • 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 $333). 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.
Dulles Intl to Dallas/Fort Worth flights
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Reagan-National to Seattle flights
Reagan-National to Los Angeles flights
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Baltimore to Los Angeles flights
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Reagan-National to Dallas/Fort Worth flights
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Dulles Intl to San Francisco flights
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Baltimore to Hobby flights
Reagan-National to Hobby flights
Reagan-National to Atlanta flights
Dulles Intl to Fort Lauderdale flights
Baltimore to Tampa flights
Reagan-National to San Francisco flights
Dulles Intl to New Orleans flights
Baltimore to Seattle flights
Dulles Intl to George Bush Intcntl flights
Dulles Intl to Boston flights
Reagan-National to Fort Lauderdale flights
Baltimore to Boston flights
Reagan-National to Boston flights
Reagan-National to Nashville flights
Dulles Intl to Nashville flights
Reagan-National to George Bush Intcntl flights
Baltimore to San Francisco flights
Reagan-National to Denver flights
Dulles Intl to Austin flights
Reagan-National to Tampa flights
Dulles Intl to San Diego 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$196Average$505FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$242Average$378FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$280Average$599FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$447FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$290Average$523FlexibilityNo cancel feeOn-time75%

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