$234 Cheap Flights from Louisville (SDF) to Great Falls (GTF)

View $234 flight on Wed, Dec 10, 2025Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Great Falls, MT (GTF-Great Falls Intl.)

Cheap Flights from Louisville to Great Falls (SDF-GTF)

Prices were available within the past 7 days and start at $234 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jan 20 - Tue, Feb 3
SDF
Louisville
GTF
Great Falls
$258 Roundtrip, found 5 days ago
$258
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jan 20 from Louisville to Great Falls, returning Tue, Feb 3, priced at $258 found 5 days ago
United
Tue, Jan 20 - Tue, Feb 3
SDF
Louisville
GTF
Great Falls
$264 Roundtrip, found 5 days ago
$264
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jan 20 from Louisville to Great Falls, returning Tue, Feb 3, priced at $264 found 5 days ago
Delta
Wed, Dec 10 - Mon, Dec 15
SDF
Louisville
GTF
Great Falls
$269 Roundtrip, found 5 hours ago
$269
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Dec 10 from Louisville to Great Falls, returning Mon, Dec 15, priced at $269 found 5 hours ago
United
Wed, Dec 10 - Mon, Dec 15
SDF
Louisville
GTF
Great Falls
$278 Roundtrip, found 5 hours ago
$278
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Dec 10 from Louisville to Great Falls, returning Mon, Dec 15, priced at $278 found 5 hours ago
United
Tue, Jan 20 - Tue, Feb 3
SDF
Louisville
GTF
Great Falls
$280 Roundtrip, found 5 days ago
$280
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jan 20 from Louisville to Great Falls, returning Tue, Feb 3, priced at $280 found 5 days ago
United
Tue, Jan 20 - Tue, Feb 3
SDF
Louisville
GTF
Great Falls
$283 Roundtrip, found 5 days ago
$283
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jan 20 from Louisville to Great Falls, returning Tue, Feb 3, priced at $283 found 5 days ago
United
Tue, Jan 20 - Tue, Feb 3
SDF
Louisville
GTF
Great Falls
$285 Roundtrip, found 5 days ago
$285
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jan 20 from Louisville to Great Falls, returning Tue, Feb 3, priced at $285 found 5 days ago
United
Tue, Jan 20 - Tue, Feb 3
SDF
Louisville
GTF
Great Falls
$292 Roundtrip, found 5 days ago
$292
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jan 20 from Louisville to Great Falls, returning Tue, Feb 3, priced at $292 found 5 days ago
Delta
Wed, Dec 10 - Tue, Dec 16
SDF
Louisville
GTF
Great Falls
$294 Roundtrip, found 5 hours ago
$294
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Dec 10 from Louisville to Great Falls, returning Tue, Dec 16, priced at $294 found 5 hours ago
Alaska Airlines
Wed, Dec 10 - Mon, Dec 15
SDF
Louisville
GTF
Great Falls
$482 Roundtrip, found 5 hours ago
$482
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Wed, Dec 10 from Louisville to Great Falls, returning Mon, Dec 15, priced at $482 found 5 hours ago

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF) cost?
Secure a cheap one-way flight from $234 or cheap return flight from $258 from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF)?
January is the cheapest month to fly from SDF to GTF. Traveling during quieter months is often the key to finding better fares.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SDF to GTF flight.
How many flights per day from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF)?
There aren't any daily nonstop flights departing from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from SDF to GTF?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF)?
Select a flight from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF) last-minute?
Waiting until just before your departure to book your flight from SDF to GTF often results in higher prices. Although you may find some last-minute deals, they aren't always guaranteed. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a SDF to GTF flight and hotel package?
Compared with arranging flights and hotels separately, booking a SDF to GTF flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place takes the hassle out of planning your trip. Simply secure your flights and choose from our wide range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Great Falls Intl. Airport (GTF)?
Typically, it's possible to cancel or reschedule your SDF to GTF flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Louisville Intl.
Destination airport
Great Falls Intl.
Roundtrip price
$258
Distance
1438 mi

Book with confidence

Louisville to Great Falls Flights

The cheapest times to fly from Louisville to Great Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Louisville to Great Falls are during the month of January. You can find some of the cheapest flights from Louisville to Great Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Great Falls

Sunday is one of the best days to book for cheap flights from Louisville to Great Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Louisville to Great Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Louisville to Great Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $234 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Louisville to Great Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Louisville to Great Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Louisville to Great Falls Flights

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*Available to One Key members.