What airlines fly to Louisville?

Delta, United Airlines and American Airlines are the top three most popular airlines that fly to Louisville from Islip, New York according to our data. Delta is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 6 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Islip Long Island Airport to Louisville Intl Airport?

Prices for flights from Islip Long Island Airport to Louisville Intl Airport are refreshed on a daily basis.

How old do you have to be to fly from Islip Long Island Airport to Louisville Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Louisville Intl Airport.

What documentation or ID do you need to fly to Louisville Intl Airport?

The required travel and health documents for your Louisville Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Louisville Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$588 Cheap Flights from Islip to Louisville in 2025/26

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0 bags

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ISP

SDF

697 mimulti-stop

SDF

ISP

697 mimulti-stop

Multiple Airlines

Southwest flights from Islip, New York to Louisville

Our best Southwest deals on Islip, New York to Louisville flight tickets

Southwest

Dec 24

ISP3:55 pmIslip Long Island

6h 55m

1 stop

SDF10:50 pmLouisville Intl

Dec 28

SDF5:35 pmLouisville Intl

6h 20m

1 stop

ISP11:55 pmIslip Long Island

$626

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Southwest

Dec 24

ISP12:55 pmIslip Long Island

10h 10m

2 stops

SDF11:05 pmLouisville Intl

Dec 28

SDF6:20 amLouisville Intl

10h 55m

2 stops

ISP5:15 pmIslip Long Island

$650

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How to get the cheapest flight ticket from Islip, New York to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Islip, New York is on a Saturday. momondo users have found tickets for Saturday departures for as low as $297. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Islip, New York to Louisville on a Sunday will generally be more expensive and average around $379. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Islip, New York to Louisville flights are usually those with departure times in the afternoon. Our users have found flights to Louisville in the afternoon for as low as $311. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $369 per ticket.

When to book flights from Islip, New York to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Louisville according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Islip, New York to Louisville (ISP to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Louisville

Fastest flight time	13h 23m
Direct flights	None

The fastest flight from Islip, New York to Louisville takes 13h 23m

There are no direct flights from Islip, New York to Louisville. There are no popular flight routes from Islip, New York to Louisville.

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How far is Islip Long Island to Louisville Intl by plane?
The straight-line distance from Islip Long Island to Louisville Intl is 689.3 mi. Flights usually cover this in 13h 23m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Islip Long Island Airport to Louisville Intl Airport?
Prices for flights from Islip Long Island Airport to Louisville Intl Airport are refreshed on a daily basis.
How old do you have to be to fly from Islip Long Island Airport to Louisville Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The required travel and health documents for your Louisville Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Louisville Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Islip to Louisville?

It is quick and easy to find Islip to Louisville flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Louisville that suits you.

Can I find flights from Islip to Louisville with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Louisville from Islip with this policy.

How can momondo help me find flights from Islip to Louisville?

Once you have performed a search for Islip to Louisville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Islip to Louisville right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Islip to Louisville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Louisville and let you know when they change.