Montana

$151+ Cheap flights from Dulles Intl (IAD) to Montana

IAD — BZN
Dec 9 — Dec 161
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Cheap flight deals from Dulles Intl to Montana

Cheapest flights from Dulles Intl to Montana

Fri 12/42:42 pm -
1 stop8h 07m
Mon 12/71:28 pm -
1 stop8h 02m
Deal found 11/7$389
Mon 12/72:10 pm -
1 stop9h 35m
Thu 12/1012:38 pm -
1 stop6h 40m
Deal found 11/5$394
Thu 12/37:00 am -
1 stop7h 39m
Mon 12/71:19 pm -
1 stop8h 28m
Deal found 11/7$398
Tue 12/88:07 am -
2 stops13h 41m
Tue 12/156:21 pm -
2 stops15h 28m
Deal found 11/8$399
Fri 12/47:00 am -
1 stop7h 39m
Sat 12/126:19 pm -
2 stops12h 57m
Deal found 11/9$404
Wed 12/22:10 pm -
1 stop9h 16m
Sat 12/56:20 am -
1 stop8h 59m
Deal found 11/6$409
Sat 12/512:35 pm -
1 stop8h 00m
Sat 12/129:50 am -
1 stop7h 40m
Deal found 11/5$409
Sat 12/52:43 pm -
1 stop7h 19m
Sat 12/126:25 pm -
2 stops15h 24m
Deal found 11/5$414
Fri 12/48:20 am -
1 stop9h 03m
Fri 12/1112:38 pm -
1 stop6h 40m
Deal found 11/6$424
Sun 12/67:00 am -
1 stop7h 39m
Sat 12/126:19 pm -
2 stops12h 57m
Deal found 11/6$428
Thu 12/107:00 am -
1 stop9h 35m
Sun 12/131:04 pm -
1 stop8h 43m
Deal found 11/4$429
Wed 12/212:06 pm -
2 stops23h 22m
Thu 12/1710:42 am -
1 stop17h 25m
Deal found 11/9$431

Find flight deals from Dulles Intl to Montana

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$389
(American Airlines)

One-way from

$151
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$478

Good round-trip deal

$519 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Bozeman Gallatin Field flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Bozeman Gallatin Field flights.
From Washington, D.C. Dulles Intl to Montana
One-way flight from Washington, D.C. Dulles Intl to Montana
Highest demand for flights based on searches. 7% potential increase in price ($42 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montana.

Cheapflights Fare Finder

 
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.Bozeman

IAD Washington, D.C. Dulles Intl - BZN Bozeman Gallatin Field

IADBZN

Washington, D.C. Dulles Intl

Sat 1/16

9:49 am-3:32 pm

1 stop7h 43m

Bozeman Gallatin Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Sat 12/12

7:00 am-12:30 pm

1 stop7h 30m

Helena

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$205

Washington, D.C.Billings

IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl

IADBIL

Washington, D.C. Dulles Intl

Wed 12/16

10:35 pm-5:29 pm

3 stops44h 54m

Billings Logan Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$245

Washington, D.C.Billings

IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl

IADBIL

Washington, D.C. Dulles Intl

Thu 12/17

10:06 pm-3:46 pm

2 stops43h 40m

Billings Logan Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$277

Washington, D.C.Billings

IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl

IADBIL

Washington, D.C. Dulles Intl

Fri 11/20

2:42 pm-9:44 pm

1 stop9h 02m

Billings Logan Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$291

Washington, D.C.Bozeman

IAD Washington, D.C. Dulles Intl - BZN Bozeman Gallatin Field

IADBZN

Washington, D.C. Dulles Intl

Thu 1/14

7:00 am-2:55 pm

1 stop9h 55m

Bozeman Gallatin Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$296

Washington, D.C.Missoula

IAD Washington, D.C. Dulles Intl - MSO Missoula Johnson-Bell Field

IADMSO

Washington, D.C. Dulles Intl

Mon 2/15

7:04 am-3:23 pm

1 stop10h 19m

Missoula Johnson-Bell Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$300

Washington, D.C.Missoula

IAD Washington, D.C. Dulles Intl - MSO Missoula Johnson-Bell Field

IADMSO

Washington, D.C. Dulles Intl

Thu 3/18

7:00 am-3:23 pm

1 stop10h 23m

Missoula Johnson-Bell Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$300

Washington, D.C.Kalispell

IAD Washington, D.C. Dulles Intl - FCA Kalispell Glacier Park

IADFCA

Washington, D.C. Dulles Intl

Sat 11/14

7:25 am-2:40 pm

1 stop9h 15m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$300

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Thu 12/17

6:45 am-1:46 pm

1 stop9h 01m

Helena

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 $463). Flying from Washington, D.C. Dulles Intl Airport to Montana in December is currently the most expensive (average of $698). 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Montana?

Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Montana flights typically cost between $468 and $678 in December.
The cheapest round-trip price found within the last 5 days was $394 on United Airlines (Dec 7-Dec 10).

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Montana?

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Montana may vary depending on when you book. For the best chance of a lower fare, look to book 37 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Montana

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.

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • 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 6h 38m. Airlines will cover a distance of 1643 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes 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 $628 for a flight from Washington, D.C. Dulles Intl Airport to Montana. The cheapest flight overall is $399 while the most popular route, (Washington, D.C. Dulles Intl - Bozeman Gallatin Field) is currently priced at $409.

  • 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 $463). Flying from Washington, D.C. Dulles Intl Airport to Montana in December is currently the most expensive (average of $698). 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.

See more FAQs

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Alternative routes for Dulles Intl to Montana

Top 5 airlines flying from Dulles Intl to Montana

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$248Average$493FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$254Average$529FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$278Average$463FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$288Average$519FlexibilityNo cancel feeOn-time75%
DeltaCheapest$289Average$451FlexibilityNo cancel feeOn-timeN/A

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