How long is the flight from Louisville to Montana?

Airlines like United Airlines, American Airlines, and Delta fly from Louisville to Montana in about 5h 48m. The time it takes to get you to your destination can typically vary by up to 7h 08m. The distance between Louisville and Montana is about 1553 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Montana ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Montana when rainfall is around 0.4 in.

If weather is an important factor for your trip to Montana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

What are the most popular routes from Louisville to Montana?

The most popular flight routes from Louisville to Montana are Louisville Intl - Bozeman Gallatin Field, Louisville Intl - Missoula Johnson-Bell Field and Louisville Intl - Billings Logan Intl.

What are the most popular airlines that fly from Louisville to Montana?

When booking a flight from Louisville to Montana, you may want to consider flying on United Airlines, American Airlines or Southwest as they are the most popular for this route.

What is the cheapest time of day to fly from SDF to MT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Montana as you normally would.

What airport do you fly from for flights from Louisville to Montana?

Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Montana. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

Can I find deals for flights from Louisville to Montana that include hotel bookings?

Yes. In addition to deals on Louisville to Montana flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Louisville to Montana?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Montana.

Can I find deals for business class flights from Louisville to Montana?

Yes. Cheapflights offers flight deals from Louisville 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.

$195+ Cheap Flights from Louisville to Montana

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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheap flight deals from Louisville to Montana

Cheapest

Best

Last-minute

One-way

Cheapest flights from Louisville to Montana
Explore the most affordable flight options available from Louisville to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

Thu 12/109:00 am -

1 stop8h 13m

Sat 12/127:00 am -

1 stop5h 27m

Deal found 8/10

$257

Tue 9/83:25 pm -

1 stop7h 54m

Tue 9/156:30 am -

1 stop5h 53m

Deal found 8/10

$306

Sun 9/63:25 pm -

1 stop7h 47m

Sat 9/126:15 am -

1 stop6h 14m

Deal found 8/8

$328

Sat 8/298:00 am -

1 stop7h 50m

Wed 9/25:00 am -

1 stop7h 29m

Deal found 8/6

$328

Sat 10/247:55 am -

1 stop7h 19m

Sat 10/312:42 pm -

1 stop5h 42m

Deal found 8/8

$339

Thu 10/223:36 pm -

1 stop7h 46m

Sun 10/252:45 pm -

1 stop5h 39m

Deal found 8/6

$342

Sat 9/510:05 am -

2 stops9h 11m

Sat 9/127:00 am -

1 stop5h 29m

Deal found 8/6

$344

Tue 11/173:24 pm -

1 stop8h 06m

Wed 11/182:37 pm -

1 stop5h 47m

Deal found 8/10

$347

Sat 10/2410:16 am -

2 stops12h 56m

Sat 10/316:00 am -

2 stops13h 35m

Deal found 8/8

$349

Wed 9/308:00 am -

1 stop7h 32m

Sat 10/176:15 am -

1 stop6h 25m

Deal found 8/10

$359

Wed 9/167:54 pm -

1 stop5h 49m

Tue 9/296:35 am -

1 stop7h 14m

Deal found 8/6

$359

Sat 9/53:25 pm -

1 stop8h 42m

Tue 9/82:29 pm -

1 stop6h 00m

Deal found 8/9

$360

Best flights from Louisville to Montana
Discover carefully curated flight deals from Louisville to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.

Sun 9/63:25 pm -

1 stop7h 47m

Sat 9/126:15 am -

1 stop6h 14m

Deal found 8/8

$328

Sat 10/2410:16 am -

2 stops12h 56m

Sat 10/316:00 am -

2 stops13h 35m

Deal found 8/8

$349

Tue 9/297:54 pm -

1 stop5h 48m

Mon 10/56:17 pm -

2 stops12h 40m

Deal found 8/10

$364

Fri 9/254:15 pm -

1 stop9h 30m

Tue 9/296:55 am -

1 stop14h 10m

Deal found 8/10

$394

Sat 8/298:00 am -

1 stop7h 50m

Wed 9/25:00 am -

1 stop7h 29m

Deal found 8/6

$328

Thu 10/223:36 pm -

1 stop7h 46m

Sun 10/252:45 pm -

1 stop5h 39m

Deal found 8/6

$342

Tue 8/257:54 pm -

1 stop5h 36m

Sat 8/296:26 am -

1 stop7h 24m

Deal found 8/10

$409

Sat 9/510:05 am -

2 stops9h 11m

Sat 9/127:00 am -

1 stop5h 29m

Deal found 8/6

$344

Sat 10/245:15 am -

2 stops9h 59m

Sat 10/317:00 am -

1 stop5h 22m

Deal found 8/8

$344

Sat 9/194:29 pm -

1 stop5h 31m

Sat 9/266:17 am -

1 stop7h 32m

Deal found 8/7

$424

Tue 11/178:00 am -

1 stop7h 30m

Wed 11/186:30 am -

2 stops12h 22m

Deal found 8/10

$352

Sat 9/124:29 pm -

1 stop5h 31m

Sat 9/196:17 am -

1 stop7h 32m

Deal found 8/10

$467

Tue 9/227:54 pm -

1 stop5h 25m

Fri 10/21:37 pm -

1 stop8h 06m

Deal found 8/10

$468

Sat 9/510:23 am -

2 stops13h 13m

Fri 9/112:40 pm -

1 stop5h 49m

Deal found 8/6

$414

Sat 10/247:55 am -

1 stop7h 46m

Wed 10/282:45 pm -

1 stop5h 39m

Deal found 8/7

$414

Tue 12/110:13 am -

2 stops30h 27m

Sat 12/123:35 pm -

1 stop5h 11m

Deal found 8/10

$542

Thu 9/33:25 pm -

1 stop7h 47m

Sat 9/56:15 am -

2 stops12h 21m

Deal found 8/8

$419

Sat 9/193:25 pm -

1 stop7h 56m

Sat 9/266:30 am -

1 stop6h 10m

Deal found 8/6

$425

Tue 9/13:25 pm -

1 stop8h 05m

Sat 9/52:35 pm -

1 stop5h 56m

Deal found 8/6

$429

Tue 11/33:24 pm -

1 stop7h 50m

Sat 11/77:00 am -

1 stop5h 22m

Deal found 8/10

$429

Sat 2/62:20 pm -

2 stops10h 07m

Tue 2/910:00 am -

2 stops11h 15m

Deal found 8/6

$439

Tue 11/37:00 am -

2 stops13h 36m

Sat 11/710:15 am -

2 stops11h 15m

Deal found 8/8

$439

Sat 1/99:00 am -

1 stop9h 10m

Wed 1/136:15 am -

1 stop6h 12m

Deal found 8/8

$459

Fri 12/43:20 pm -

1 stop8h 10m

Tue 12/82:29 pm -

1 stop5h 28m

Deal found 8/10

$459

Fri 9/183:25 pm -

1 stop8h 09m

Tue 9/227:00 am -

2 stops11h 32m

Deal found 8/10

$464

Fri 10/3010:37 am -

2 stops13h 14m

Tue 11/36:14 am -

1 stop6h 08m

Deal found 8/10

$464

Sat 10/249:04 am -

2 stops12h 58m

Tue 10/272:36 pm -

1 stop5h 48m

Deal found 8/6

$464

Wed 12/23:20 pm -

1 stop8h 10m

Tue 12/86:31 am -

2 stops14h 44m

Deal found 8/10

$464

Sat 12/58:45 am -

2 stops14h 45m

Sun 12/136:31 am -

1 stop5h 56m

Deal found 8/10

$464

Tue 9/15:15 am -

2 stops10h 09m

Tue 9/82:30 pm -

1 stop5h 59m

Deal found 8/7

$475

Last-minute flights from Louisville to Montana
Discover last-minute flight deals from Louisville to Montana. Data last updated August 11, 2026 and is based on user searches.

Tue 8/258:00 am -

1 stop7h 29m

Sat 8/293:58 pm -

1 stop6h 01m

Deal found 8/8

$389

Sat 8/298:00 am -

1 stop7h 50m

Wed 9/25:00 am -

1 stop7h 29m

Deal found 8/6

$328

Sat 9/510:05 am -

2 stops9h 11m

Sat 9/127:00 am -

1 stop5h 29m

Deal found 8/6

$344

Sat 9/53:25 pm -

1 stop8h 42m

Tue 9/82:29 pm -

1 stop6h 00m

Deal found 8/9

$360

Sun 9/63:25 pm -

1 stop7h 47m

Sat 9/126:15 am -

1 stop6h 14m

Deal found 8/8

$328

Tue 9/83:25 pm -

1 stop7h 54m

Tue 9/156:30 am -

1 stop5h 53m

Deal found 8/10

$306

Wed 9/167:54 pm -

1 stop5h 49m

Tue 9/296:35 am -

1 stop7h 14m

Deal found 8/6

$359

Mon 9/217:54 pm -

1 stop5h 25m

Tue 9/296:17 am -

1 stop7h 32m

Deal found 8/6

$389

Tue 9/222:47 pm -

2 stops11h 31m

Wed 9/305:30 am -

2 stops9h 40m

Deal found 8/10

$369

Fri 9/257:54 pm -

1 stop5h 48m

Sat 9/266:17 pm -

2 stops14h 02m

Deal found 8/10

$394

Fri 9/254:15 pm -

1 stop9h 30m

Tue 9/296:55 am -

1 stop14h 10m

Deal found 8/10

$394

Wed 9/308:00 am -

1 stop7h 32m

Sat 10/176:15 am -

1 stop6h 25m

Deal found 8/10

$359

One-way flights from Louisville to Montana
Search for one-way flight options from Louisville to Montana. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.

Sat 9/124:29 pm -

1 stop5h 31m

Deal found 8/6

$195

Sat 9/121:49 pm -

2 stops9h 32m

Deal found 8/6

$200

Fri 8/284:01 pm -

1 stop6h 36m

Deal found 8/7

$212

Fri 8/281:50 pm -

2 stops9h 29m

Deal found 8/7

$217

Mon 8/315:15 am -

1 stop8h 27m

Deal found 8/8

$242

Wed 9/167:54 pm -

1 stop5h 49m

Deal found 8/6

$246

Fri 8/287:54 pm -

1 stop5h 22m

Deal found 8/9

$250

Wed 9/307:54 pm -

1 stop5h 48m

Deal found 8/7

$251

Wed 9/165:15 am -

2 stops12h 06m

Deal found 8/8

$301

Fri 8/288:28 pm -

3 stops49h 48m

Deal found 8/7

$312

Thu 9/33:20 pm -

2 stops9h 10m

Deal found 8/8

$425

Thu 9/33:25 pm -

1 stop7h 54m

Deal found 8/8

$447

Find flight deals from Louisville to Montana

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$257 (United Airlines)
One-way from	$195 (Delta)
Popular in	July
Cheapest in	January
Average price	$419

Provider with most accurate pricing for Louisville Intl-Bozeman Gallatin Field flight deals.

Search Deals

Provider most trusted by Cheapflights users for Louisville Intl-Bozeman Gallatin Field flights.

Search Deals

From Louisville Intl to Montana

Search Deals

One-way flight from Louisville Intl to Montana

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleGreat Falls

SDF Louisville Intl - GTF Great Falls

SDFGTF

Louisville Intl

Sun 9/6

3:25 pm-9:12 pm

1 stop7h 47m

Great Falls

Sat 9/12

6:15 am-2:29 pm

1 stop6h 14m

$328

LouisvilleCody

SDF Louisville Intl - COD Cody E.E. Faust

SDFCOD

Louisville Intl

Sat 8/29

8:00 am-1:50 pm

1 stop7h 50m

Cody E.E. Faust

Wed 9/2

5:00 am-2:29 pm

1 stop7h 29m

$328

LouisvilleGreat Falls

SDF Louisville Intl - GTF Great Falls

SDFGTF

Louisville Intl

Thu 10/22

3:36 pm-9:22 pm

1 stop7h 46m

Great Falls

Sun 10/25

2:45 pm-10:24 pm

1 stop5h 39m

$342

LouisvilleBillings

SDF Louisville Intl - BIL Billings Logan Intl

SDFBIL

Louisville Intl

Sat 9/5

10:05 am-5:16 pm

2 stops9h 11m

Billings Logan Intl

Sat 9/12

7:00 am-2:29 pm

1 stop5h 29m

$344

LouisvilleBillings

SDF Louisville Intl - BIL Billings Logan Intl

SDFBIL

Louisville Intl

Sat 10/24

5:15 am-1:14 pm

2 stops9h 59m

Billings Logan Intl

Sat 10/31

7:00 am-2:22 pm

1 stop5h 22m

$344

LouisvilleBillings

SDF Louisville Intl - BIL Billings Logan Intl

SDFBIL

Louisville Intl

Sat 10/24

10:16 am-9:12 pm

2 stops12h 56m

Billings Logan Intl

Sat 10/31

6:00 am-9:35 pm

2 stops13h 35m

$349

LouisvilleBozeman

SDF Louisville Intl - BZN Bozeman Gallatin Field

SDFBZN

Louisville Intl

Tue 11/17

8:00 am-1:30 pm

1 stop7h 30m

Bozeman Gallatin Field

Wed 11/18

6:30 am-8:52 pm

2 stops12h 22m

$352

LouisvilleMissoula

SDF Louisville Intl - MSO Missoula Johnson-Bell Field

SDFMSO

Louisville Intl

Tue 9/29

7:54 pm-11:42 pm

1 stop5h 48m

Missoula Johnson-Bell Field

Mon 10/5

6:17 pm-8:57 am

2 stops12h 40m

$364

LouisvilleBozeman

SDF Louisville Intl - BZN Bozeman Gallatin Field

SDFBZN

Louisville Intl

Fri 9/25

4:15 pm-11:45 pm

1 stop9h 30m

Bozeman Gallatin Field

Tue 9/29

6:55 am-11:05 pm

1 stop14h 10m

$394

Quickest round-trip

LouisvilleBillings

SDF Louisville Intl - BIL Billings Logan Intl

SDFBIL

Louisville Intl

Tue 8/25

7:54 pm-11:30 pm

1 stop5h 36m

Billings Logan Intl

Sat 8/29

6:26 am-3:50 pm

1 stop7h 24m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 41 resultsSorted by cheapest first

...

Best time to book a flight from Louisville to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Louisville with our price prediction graph.

SDF-GTF

SDF-BIL

SDF-MSO

SDF-BZN

SDF-COD

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 Louisville to Montana

SDF-USMT

SDF-GTF

SDF-BIL

SDF-MSO

SDF-BZN

What is the cheapest month to book a flight from Louisville to Montana?

Currently, January is the cheapest month in which you can book a flight from Louisville to Montana (average of $298). Flying from Louisville to Montana in December is currently the most expensive (average of $1,608). 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 Louisville to Montana?

Airfare is below average for this route at the moment.

Louisville to Montana flights typically cost between $367 and $465 in December.
The cheapest round-trip price found within the last 5 days was $257 on United Airlines (Dec 10-Dec 12).

How far ahead should I book a flight from Louisville to Montana?

To ensure you get the cheapest price possible for a flight from Louisville to Montana, you should look to book at least 9 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Montana

Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Louisville 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

4,221 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Southwest

8.0

Very good

4,221 reviews

Southwest

8.0

Very good

4,221 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Delta

7.8

Good

8,505 reviews

Southwest

8.0

Very good

4,221 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

United Airlines

7.4

Good

10,103 reviews

Southwest

8.0

Very good

4,221 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

American Airlines

7.1

Good

11,902 reviews

Southwest

8.0

Very good

4,221 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

What airport do you fly from for flights from Louisville to Montana?
Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Montana. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.
How long is the flight from Louisville to Montana?
Airlines like United Airlines, American Airlines, and Delta fly from Louisville to Montana in about 5h 48m. The time it takes to get you to your destination can typically vary by up to 7h 08m. The distance between Louisville and Montana is about 1553 mi. This flight may include one or multiple stops.
What are the most popular routes from Louisville to Montana?
The most popular flight routes from Louisville to Montana are Louisville Intl - Bozeman Gallatin Field, Louisville Intl - Missoula Johnson-Bell Field and Louisville Intl - Billings Logan Intl.
Can I find deals for flights from Louisville to Montana that include hotel bookings?
Yes. In addition to deals on Louisville to Montana flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Louisville to Montana?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Montana.
Can I find deals for business class flights from Louisville to Montana?
Yes. Cheapflights offers flight deals from Louisville 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 Louisville to Montana?
Currently, January is the cheapest month in which you can book a flight from Louisville to Montana (average of $298). Flying from Louisville to Montana in December is currently the most expensive (average of $1,608). 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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Top 4 airlines flying from Louisville to Montana

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$254	Average$492	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$262	Average$408	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$303	Average$556	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$385	Average$524	FlexibilityNo cancel fee	On-time63%

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$195+ Cheap flights from Louisville (SDF) 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Louisville to Montana

Cheapest flights from Louisville to MontanaExplore the most affordable flight options available from Louisville to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

Explore the most affordable flight options available from Louisville to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

Best flights from Louisville to MontanaDiscover carefully curated flight deals from Louisville to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.

Discover carefully curated flight deals from Louisville to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.

Last-minute flights from Louisville to MontanaDiscover last-minute flight deals from Louisville to Montana. Data last updated August 11, 2026 and is based on user searches.

Discover last-minute flight deals from Louisville to Montana. Data last updated August 11, 2026 and is based on user searches.

One-way flights from Louisville to MontanaSearch for one-way flight options from Louisville to Montana. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.

Search for one-way flight options from Louisville to Montana. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.

Find flight deals from Louisville to Montana

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Montana that are best for you.

Best time to book a flight from Louisville to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Louisville with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Louisville to Montana?

How much does it cost to fly round-trip from Louisville to Montana?

Airfare is below average for this route at the moment.

Louisville to Montana flights typically cost between $367 and $465 in December.The cheapest round-trip price found within the last 5 days was $257 on United Airlines (Dec 10-Dec 12).

How far ahead should I book a flight from Louisville to Montana?

To ensure you get the cheapest price possible for a flight from Louisville to Montana, you should look to book at least 9 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Montana

Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Louisville to Montana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Louisville to Montana?

How long is the flight from Louisville to Montana?

What are the most popular routes from Louisville to Montana?

Can I find deals for flights from Louisville to Montana that include hotel bookings?

How can I find direct flights from Louisville to Montana?

Can I find deals for business class flights from Louisville to Montana?

What is the cheapest month to book a flight from Louisville to Montana?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Louisville to Montana

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Louisville and Montana flights

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Louisville to Montana flights

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Top 4 airlines flying from Louisville to Montana

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Cheapest flights from Louisville to Montana
Explore the most affordable flight options available from Louisville to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

Best flights from Louisville to Montana
Discover carefully curated flight deals from Louisville to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.

Last-minute flights from Louisville to Montana
Discover last-minute flight deals from Louisville to Montana. Data last updated August 11, 2026 and is based on user searches.

One-way flights from Louisville to Montana
Search for one-way flight options from Louisville to Montana. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.

Louisville to Montana flights typically cost between $367 and $465 in December.
The cheapest round-trip price found within the last 5 days was $257 on United Airlines (Dec 10-Dec 12).