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$308+ Cheap flights from Louisville to Great Falls (SDF - GTF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — GTF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Louisville to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Great Falls (GTF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$308
(United Airlines)

Popular in

October

Cheapest in

August

Average price

$389
From Louisville Intl to Great Falls
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($188 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Louisville to Great Falls

Cheapest flights from Louisville to Great Falls
Explore the most affordable flight options available from Louisville to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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 9/259:01 amSDF - GTF
1 stop6h 25mUnited Airlines
Mon 9/292:31 pmGTF - SDF
1 stop5h 59mUnited Airlines
Deal found 9/10$308
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/233:30 pmSDF - GTF
1 stop7h 58mUnited Airlines
Mon 9/292:31 pmGTF - SDF
1 stop5h 59mUnited Airlines
Deal found 9/11$338
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/275:57 pmSDF - GTF
2 stops21h 30mUnited Airlines
Mon 11/32:30 pmGTF - SDF
1 stop6h 00mUnited Airlines
Deal found 9/10$546
This Delta deal was found by Cheapflights users on 9/10. 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 10/272:33 pmSDF - GTF
2 stops10h 33mDelta
Mon 11/36:09 pmGTF - SDF
2 stops13h 47mDelta
Deal found 9/10$603

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Great Falls 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 September 11, 2025.
Use the filters below to find and compare flights from Louisville to Great Falls that are best for you.

Fly from

Louisville

Fly to

Great Falls

Route

Depart

Return

Price

LouisvilleGreat Falls

SDF - GTF

SDFGTF

Louisville Intl

Thu 9/25

10:55 am-9:11 pm

2 stops12h 16m

Great Falls

Mon 9/29

7:00 am-2:32 pm

1 stop5h 32m

$314

LouisvilleGreat Falls

SDF - GTF

SDFGTF

Louisville Intl

Tue 9/23

3:30 pm-9:28 pm

1 stop7h 58m

Great Falls

Mon 9/29

2:31 pm-10:30 pm

1 stop5h 59m

$338

LouisvilleGreat Falls

SDF - GTF

SDFGTF

Louisville Intl

Mon 10/27

5:57 pm-1:27 pm

2 stops21h 30m

Great Falls

Mon 11/3

2:30 pm-10:30 pm

1 stop6h 00m

$546

LouisvilleGreat Falls

SDF - GTF

SDFGTF

Louisville Intl

Mon 10/27

2:33 pm-11:06 pm

2 stops10h 33m

Great Falls

Mon 11/3

6:09 pm-9:56 am

2 stops13h 47m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Louisville to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Louisville 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 Louisville to Great Falls

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

Reviews of airlines servicing Great Falls

Get insights into the airlines that provide service to Great Falls. 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 Great Falls. Reviews last updated September 11, 2025.
See what other customers who have flown with United Airlines from Louisville to Great Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Louisville to Great Falls. 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 Louisville to Great Falls?

    There are many flights that can get you from Louisville to Great Falls in 12h 16m. Fly via United Airlines to get the fastest option. There are 1439 mi between Louisville and Great Falls.

  • What is the cheapest airline to fly from Louisville to Great Falls round-trip?

    United Airlines, at $258, was found to be the cheapest airline from Louisville to Great Falls.. Users have found that United Airlines is 56% cheaper than the other options available to this destination.

  • Can I find deals for flights from Louisville to Great Falls that include hotel bookings?

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

  • How can I find direct flights from Louisville to Great Falls?

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

  • Can I find deals for business class flights from Louisville to Great Falls?

    Yes. Cheapflights offers flight deals from Louisville to Great Falls 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 Great Falls?

    Currently, January is the cheapest month in which you can book a flight from Louisville to Great Falls (average of $367). Flying from Louisville to Great Falls in July is currently the most expensive (average of $574). 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

Traveling to a place near Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
Shelby

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Top airline flying from Louisville to Great Falls

Discover the top airline that operate flights from Louisville to Great Falls. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$258Average$623FlexibilityNo cancel feeOn-time69%

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