$514 Cheap Flights from Istanbul (IST) to Louisville (SDF)

View $514 flight on Sun, Sep 20, 2026Opens in a new window

Popular airlines from Istanbul Airport (IST) to Louisville Intl. Airport (SDF)

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Cheap Flights from Istanbul to Louisville (IST-SDF)

Prices were available within the past 7 days and start at $514 for one-way flights and $803 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Dec 16 - Tue, Dec 30
IST
Istanbul
SDF
Louisville
$803 Roundtrip, found 6 days ago
$803
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Dec 16 from Istanbul to Louisville, returning Tue, Dec 30, priced at $803 found 6 days ago
Delta
Tue, Dec 16 - Tue, Dec 30
IST
Istanbul
SDF
Louisville
$803 Roundtrip, found 6 days ago
$803
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Dec 16 from Istanbul to Louisville, returning Tue, Dec 30, priced at $803 found 6 days ago
British Airways
Thu, Apr 16 - Tue, Apr 28
IST
Istanbul
SDF
Louisville
$828 Roundtrip, found 6 days ago
$828
Roundtrip
found 6 days ago
Select British Airways flight, departing Thu, Apr 16 from Istanbul to Louisville, returning Tue, Apr 28, priced at $828 found 6 days ago
British Airways
Tue, May 5 - Tue, May 12
IST
Istanbul
SDF
Louisville
$840 Roundtrip, found 22 hours ago
$840
Roundtrip
found 22 hours ago
Select British Airways flight, departing Tue, May 5 from Istanbul to Louisville, returning Tue, May 12, priced at $840 found 22 hours ago
British Airways
Tue, May 5 - Tue, May 12
IST
Istanbul
SDF
Louisville
$841 Roundtrip, found 22 hours ago
$841
Roundtrip
found 22 hours ago
Select British Airways flight, departing Tue, May 5 from Istanbul to Louisville, returning Tue, May 12, priced at $841 found 22 hours ago
British Airways
Thu, Apr 16 - Tue, Apr 28
IST
Istanbul
SDF
Louisville
$851 Roundtrip, found 6 days ago
$851
Roundtrip
found 6 days ago
Select British Airways flight, departing Thu, Apr 16 from Istanbul to Louisville, returning Tue, Apr 28, priced at $851 found 6 days ago
British Airways
Sat, Dec 27 - Wed, Jan 7
IST
Istanbul
SDF
Louisville
$851 Roundtrip, found 4 days ago
$851
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Dec 27 from Istanbul to Louisville, returning Wed, Jan 7, priced at $851 found 4 days ago
Lufthansa
Thu, Apr 16 - Tue, Apr 28
IST
Istanbul
SDF
Louisville
$925 Roundtrip, found 6 days ago
$925
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Thu, Apr 16 from Istanbul to Louisville, returning Tue, Apr 28, priced at $925 found 6 days ago
United
Thu, Apr 16 - Tue, Apr 28
IST
Istanbul
SDF
Louisville
$925 Roundtrip, found 6 days ago
$925
Roundtrip
found 6 days ago
Select United flight, departing Thu, Apr 16 from Istanbul to Louisville, returning Tue, Apr 28, priced at $925 found 6 days ago
American Airlines
Mon, Dec 15 - Sat, Dec 27
IST
Istanbul
SDF
Louisville
$1,000 Roundtrip, found 4 hours ago
$1,000
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Mon, Dec 15 from Istanbul to Louisville, returning Sat, Dec 27, priced at $1,000 found 4 hours ago
Flights from Istanbul (IST) to Louisville (SDF)
Origin airport
Istanbul
Destination airport
Louisville Intl.
Airlines serving
American Airlines, British Airways, Delta, KLM, Lufthansa, United
Roundtrip price
$802
Distance
5570 mi

Istanbul to Louisville Flights

The cheapest times to fly from Istanbul 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 Istanbul to Louisville are during the month of December. You can find some of the cheapest flights from Istanbul to Louisville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Istanbul to Louisville

Sunday is one of the best days to book for cheap flights from Istanbul 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 Istanbul 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 Istanbul to Louisville in 2026. You can also book with separate airlines for your outbound and return journeys, from $514 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 Istanbul 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 Istanbul 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 Istanbul (IST) to Louisville Intl. Airport (SDF) cost?
Lock in a cheap one-way flight from $514 or cheap return flight from $803 from Istanbul (IST) to Louisville Intl. Airport (SDF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Istanbul (IST) to Louisville Intl. Airport (SDF)?
The cheapest month to fly from IST to SDF is December, when there's less demand. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Istanbul (IST) to Louisville Intl. Airport (SDF)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from IST to SDF. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Istanbul (IST) to Louisville Intl. Airport (SDF)?
Nonstop flights from Istanbul (IST) to Louisville Intl. Airport (SDF) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IST to SDF?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, airline 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 Istanbul (IST) to Louisville Intl. Airport (SDF)?
To avoid possible delays on the Istanbul (IST) to Louisville Intl. Airport (SDF) route, travel before 3 PM. Flights after this time have a 22% higher chance of being 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 Istanbul (IST) to Louisville Intl. Airport (SDF) last-minute?
Booking your plane ticket from IST to SDF just before your journey is generally more expensive. But if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an IST to SDF flight and hotel package?
You'll typically save money by securing an IST to SDF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal accommodations and flights, consider other add-ons like car rentals, activities and tours.
Can I cancel or change the date of my flight from Istanbul (IST) to Louisville Intl. Airport (SDF)?
If you booked your IST to SDF flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.