$149 Cheap Flights from Appleton (ATW) to Louisville (SDF)

View $149 flight on Thu, Oct 2, 2025Opens in a new window

Popular airlines from Appleton, WI (ATW-Appleton Intl.) to Louisville Intl. Airport (SDF)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Appleton to Louisville (ATW-SDF)

Prices were available within the past 7 days and start at $149 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Aug 20 - Sun, Aug 24
ATW
Appleton
SDF
Louisville
$229 Roundtrip, found 2 days ago
$229
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Aug 20 from Appleton to Louisville, returning Sun, Aug 24, priced at $229 found 2 days ago
Delta
Sat, Sep 13 - Tue, Sep 16
ATW
Appleton
SDF
Louisville
$229 Roundtrip, found 17 hours ago
$229
Roundtrip
found 17 hours ago
Select Delta flight, departing Sat, Sep 13 from Appleton to Louisville, returning Tue, Sep 16, priced at $229 found 17 hours ago
United
Wed, Aug 20 - Sun, Aug 24
ATW
Appleton
SDF
Louisville
$229 Roundtrip, found 2 days ago
$229
Roundtrip
found 2 days ago
Select United flight, departing Wed, Aug 20 from Appleton to Louisville, returning Sun, Aug 24, priced at $229 found 2 days ago
Delta
Sun, Jul 20 - Tue, Jul 29
ATW
Appleton
SDF
Louisville
$234 Roundtrip, found 1 day ago
$234
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Jul 20 from Appleton to Louisville, returning Tue, Jul 29, priced at $234 found 1 day ago
Delta
Thu, Jul 17 - Tue, Jul 22
ATW
Appleton
SDF
Louisville
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul 17 from Appleton to Louisville, returning Tue, Jul 22, priced at $239 found 1 day ago
United
Fri, Aug 29 - Mon, Sep 1
ATW
Appleton
SDF
Louisville
$241 Roundtrip, found 5 days ago
$241
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 29 from Appleton to Louisville, returning Mon, Sep 1, priced at $241 found 5 days ago
United
Wed, Aug 20 - Sun, Aug 24
ATW
Appleton
SDF
Louisville
$244 Roundtrip, found 2 days ago
$244
Roundtrip
found 2 days ago
Select United flight, departing Wed, Aug 20 from Appleton to Louisville, returning Sun, Aug 24, priced at $244 found 2 days ago
United
Wed, Aug 20 - Sun, Aug 24
ATW
Appleton
SDF
Louisville
$245 Roundtrip, found 2 days ago
$245
Roundtrip
found 2 days ago
Select United flight, departing Wed, Aug 20 from Appleton to Louisville, returning Sun, Aug 24, priced at $245 found 2 days ago
United
Thu, Aug 21 - Mon, Aug 25
ATW
Appleton
SDF
Louisville
$246 Roundtrip, found 3 days ago
$246
Roundtrip
found 3 days ago
Select United flight, departing Thu, Aug 21 from Appleton to Louisville, returning Mon, Aug 25, priced at $246 found 3 days ago
Delta
Sun, Aug 10 - Sun, Aug 17
ATW
Appleton
SDF
Louisville
$249 Roundtrip, found 17 hours ago
$249
Roundtrip
found 17 hours ago
Select Delta flight, departing Sun, Aug 10 from Appleton to Louisville, returning Sun, Aug 17, priced at $249 found 17 hours ago

Find the cheapest month to fly from Appleton (ATW) to Louisville (SDF)

August is typically the cheapest month to fly

From $176 - $582 per traveler.

Graph displaying average flight prices per month

Alternative airports near Louisville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Louisville Intl. SDF. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $289
SDF
Louisville Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $289
Flights from Appleton (ATW) to Louisville (SDF)
Origin airport
Appleton Intl.
Destination airport
Louisville Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$228
Distance
443 mi

Appleton to Louisville Flights

The cheapest times to fly from Appleton to Louisville

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 Appleton to Louisville are during the month of August. You can find some of the cheapest flights from Appleton to Louisville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Appleton to Louisville

Sunday is one of the best days to book for cheap flights from Appleton to Louisville: 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 Appleton to Louisville

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 Appleton to Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 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 Appleton to Louisville 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 Appleton to Louisville 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.

 

Frequently asked questions

How much does a flight from Appleton Intl. Airport (ATW) to Louisville Intl. Airport (SDF) cost?
Discover the latest flight deals from ATW to SDF by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ATW to SDF?
The cheapest flights from ATW to SDF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ATW to SDF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ATW to SDF. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Appleton Intl. Airport (ATW) to Louisville Intl. Airport (SDF)?
There aren't any daily direct flights departing from Appleton Intl. Airport (ATW) to Louisville Intl. Airport (SDF). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from ATW to SDF?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Appleton Intl. Airport (ATW) to Louisville Intl. Airport (SDF)?
To avoid potential delays on the Appleton Intl. Airport (ATW) to Louisville Intl. Airport (SDF) route, travel before 3 PM. Later departures have a 22% higher chance of cancellation.**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 Appleton Intl. Airport (ATW) to Louisville Intl. Airport (SDF) last-minute?
Booking your flight from ATW to SDF shortly before your trip is usually more expensive. But if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book an ATW to SDF flight and hotel package?
Opting for an ATW to SDF flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our wide range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Appleton Intl. Airport (ATW) to Louisville Intl. Airport (SDF)?
In most instances, you can cancel or modify your ATW to SDF flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more details, go to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.