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$366+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — GTF
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap 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 March 14, 2026.

This United Airlines deal was found by Cheapflights users on 3/11. 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.
Fri 5/298:00 am
SDF
-
GTF
1 stop7h 41m
United Airlines
Tue 6/22:37 pm
GTF
-
SDF
1 stop6h 22m
United Airlines
Deal found 3/11$366
This United Airlines deal was found by Cheapflights users on 3/9. 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 3/248:54 am
SDF
-
GTF
1 stop6h 39m
United Airlines
Sat 3/286:15 am
GTF
-
SDF
1 stop6h 04m
United Airlines
Deal found 3/9$368
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/293:36 pm
SDF
-
GTF
1 stop7h 41m
United Airlines
Sat 5/26:15 am
GTF
-
SDF
1 stop6h 26m
United Airlines
Deal found 3/9$398
This United Airlines deal was found by Cheapflights users on 3/12. 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 7/145:35 am
SDF
-
GTF
1 stop7h 51m
United Airlines
Wed 7/222:37 pm
GTF
-
SDF
1 stop6h 22m
United Airlines
Deal found 3/12$423
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Mon 3/163:15 pm
SDF
-
GTF
1 stop7h 56m
United Airlines
Mon 3/232:30 pm
GTF
-
SDF
1 stop5h 29m
United Airlines
Deal found 3/11$468

Find 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 March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$366
(United Airlines)

Popular in

March

Cheapest in

August

Average price

$807
Provider with most accurate pricing for Louisville Intl-Great Falls flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Great Falls flights.
Search Deals
From Louisville Intl to Great Falls
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 14, 2026.
Use the filters below to find and compare flights from Louisville to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LouisvilleGreat Falls

SDF - GTF

SDFGTF

Louisville Intl

Tue 3/24

8:54 am-1:33 pm

1 stop6h 39m

Great Falls

Sat 3/28

6:15 am-2:19 pm

1 stop6h 04m

$368

LouisvilleGreat Falls

SDF - GTF

SDFGTF

Louisville Intl

Wed 4/29

3:36 pm-9:17 pm

1 stop7h 41m

Great Falls

Sat 5/2

6:15 am-2:41 pm

1 stop6h 26m

$398

LouisvilleGreat Falls

SDF - GTF

SDFGTF

Louisville Intl

Tue 7/14

5:35 am-1:41 pm

2 stops10h 06m

Great Falls

Wed 7/22

12:30 pm-10:30 pm

1 stop8h 00m

$439

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Sorted by cheapest first

Compare providers for flights from Louisville to Great Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Great Falls in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Great Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Great Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Great Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Great Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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 March 14, 2026.
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
9,423 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,423 reviews
United Airlines
7.4
Good
9,423 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 6h 39m. 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 $298, was found to be the cheapest airline from Louisville to Great Falls.. Users have found that United Airlines is 36% 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.

See more FAQs

Traveling to a place near Great Falls?

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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 March 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$326Average$476FlexibilityNo cancel feeOn-time69%

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