Flight deals from Louisville to Islip

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Information from Louisville to Islip

Off-season travel month	February
Peak season for travel	February
Flight distance	1,121.19km
Popular airline	United Airlines

Find the best time to fly from Louisville to Islip

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Cheapest flights

From price

4 11
11 18
18 25
Jun

25 1
1 8
8 15
15 22
22 29
Jul

29 6
6 13
13 20
20 27

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

When are flight tickets from Louisville (SDF) to Islip (ISP) the cheapest?

Airlines adjust prices for flights from Louisville to Islip based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Louisville (SDF) to Islip (ISP) cost?

According to Trip.com's data, the lowest price is around HK$5,259.
How many airports in Islip (ISP)?

There are 1 airport(s) in Islip (ISP): Long Island Macarthur Airport.

How to find a cheap flight from Louisville to Islip

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Louisville to Islip. Book your flights at the right time and save more.

Be flexible with your travel dates to get the cheapest flight from Louisville to Islip.

Tap "Date" on the flight search bar to browse the calendar for Louisville to Islip airfare over the next 6 months in 2025.

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Don't miss out on cheap flight deals and promo codes from Louisville to Islip.

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Book early or wait until the last minute.

It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.

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For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from Louisville to Islip and snag some exclusive deals just for you.