Which airports can I use when flying from Louisville to Islip?

Flights from Louisville to Islip usually depart from Louisville Intl (SDF) and arrive at Islip Long Island (ISP).

What cabin classes can I book on flights from Louisville to Islip?

Only Economy Class is available on flights from Louisville to Islip.

Which airports do connecting flights from Louisville to Islip pass through?

Most connecting flights from Louisville to Islip pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Can I save money by using flexible dates for flights from Louisville to Islip?

Yes. Being flexible with your travel dates can save you up to 34% on the Louisville to Islip route. Friday is the cheapest departure day at $326 round-trip on average, while Thursday is the most expensive at $491, a difference of $165. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Louisville to Islip?

A nonstop flight from Louisville to Islip takes 0h 00m, covering 697 miles.

Do I need a passport to fly from Louisville to Islip?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Louisville to Islip changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $223 to $1,690. That means the highest observed fare was about 8x higher than the lowest one.

How are flight prices from Louisville to Islip looking right now?

One-way fares from Louisville to Islip are currently higher than usual. Average one-way flight prices are about $329, which is 13% above the typical average for this route.

What car rental options are available at Islip Long Island Airport (ISP)?

Islip Long Island Airport (ISP) hosts 5 major car rental companies, with daily rates starting from around $36 for economy cars. Top options include: • Budget • Enterprise Rent-A-Car • Avis • National • Empire Rent A Car

What is the cheapest airline to fly from Louisville to Islip?

Southwest ($223) and Breeze Airways ($351) are the cheapest airlines to fly round-trip from Louisville to Islip according to KAYAK data over the last 5 days.

What is the cheapest layover airport when flying from Louisville to Islip?

Flights via Baltimore/Washington (BWI) offer the most affordable fares, with an average round-trip price of $371. Based on KAYAK data over the past 3 months.

When flying from Louisville to Islip which airport offers the shortest layover?

Baltimore/Washington (BWI) had the shortest average connection time for Louisville to Islip layovers at 240 minutes over the past 3 months.

$223 CHEAP FLIGHTS from Louisville to Islip (SDF - ISP)

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Cheapest round-trip

$223

Typical prices: $326-$440

Southwest

Sun 12/16Sat 1/6

SDF - ISP • 1 stop

Cheapest one-way

$279

Typical prices: $249-$338

Southwest

Sun 12/23

SDF - ISP • 2 stops

Nonstop flights

Not available

There are currently no direct flights between Louisville and Islip. You'll need to take a connecting flight to reach the destination.

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Flight Deals

Cheap Flights from Louisville to Islip (SDF-ISP)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Louisville to Islip

Wed, Dec 16 - Wed, Jan 6

5:40 am - 4:15 pmSDF Louisville Intl-ISP Islip Long Island

10h 35m1 stop Baltimore/Washington

5:45 am - 12:55 pmISP Islip Long Island-SDF Louisville Intl

7h 10m1 stop Baltimore/Washington

$223Southwest

Wed, Dec 16 - Wed, Jan 6

5:40 am - 4:15 pmSDF Louisville Intl-ISP Islip Long Island

10h 35m1 stop Baltimore/Washington

5:45 am - 3:00 pmISP Islip Long Island-SDF Louisville Intl

9h 15m2 stops Baltimore/Washington Dallas Love Field

$229Southwest

Tue, Oct 27 - Thu, Oct 29

5:45 am - 12:10 pmSDF Louisville Intl-ISP Islip Long Island

6h 25m1 stop Baltimore/Washington

5:40 pm - 12:15 amISP Islip Long Island-SDF Louisville Intl

6h 35m1 stop Baltimore/Washington

$232Southwest

Tue, Oct 27 - Thu, Oct 29

3:55 pm - 10:40 pmSDF Louisville Intl-ISP Islip Long Island

6h 45m1 stop Baltimore/Washington

11:00 am - 9:10 pmISP Islip Long Island-SDF Louisville Intl

10h 10m2 stops Baltimore/Washington Chicago Midway

$237Southwest

Tue, Oct 27 - Thu, Oct 29

4:00 pm - 10:40 pmSDF Louisville Intl-ISP Islip Long Island

6h 40m2 stops Nashville Intl Baltimore/Washington

11:00 am - 9:10 pmISP Islip Long Island-SDF Louisville Intl

10h 10m2 stops Baltimore/Washington Chicago Midway

$242Southwest

Tue, Oct 13 - Tue, Oct 20

3:55 pm - 10:40 pmSDF Louisville Intl-ISP Islip Long Island

6h 45m1 stop Baltimore/Washington

9:40 am - 5:10 pmISP Islip Long Island-SDF Louisville Intl

7h 30m2 stops Baltimore/Washington Orlando

$279Southwest

Wed, Dec 16 - Wed, Jan 6

12:10 pm - 9:40 pmSDF Louisville Intl-ISP Islip Long Island

9h 30m2 stops Dallas Love Field Baltimore/Washington

5:45 am - 12:35 pmISP Islip Long Island-SDF Louisville Intl

6h 50m2 stops Baltimore/Washington Nashville Intl

$306Southwest

Wed, Dec 16 - Fri, Jan 8

5:12 pm - 10:17 amSDF Louisville Intl-ISP Islip Long Island

17h 05m1 stop Raleigh-Durham

10:34 am - 8:47 pmISP Islip Long Island-SDF Louisville Intl

34h 13m2 stops Charleston Fort Myers SW Florida Intl

$351Breeze Airways

Tue, Oct 13 - Tue, Oct 20

3:55 pm - 10:40 pmSDF Louisville Intl-ISP Islip Long Island

6h 45m1 stop Baltimore/Washington

9:40 am - 4:30 pmISP Islip Long Island-SDF Louisville Intl

6h 50m1 stop Baltimore/Washington

$352Southwest

Fri, Oct 2 - Wed, Oct 7

7:59 pm - 6:28 pmSDF Louisville Intl-ISP Islip Long Island

22h 29m2 stops Charleston Fort Myers SW Florida Intl

12:00 pm - 8:31 pmISP Islip Long Island-SDF Louisville Intl

8h 31m1 stop Raleigh-Durham

$361Breeze Airways

Booking Insights

Price, demand and travel trends for Louisville to Islip flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Louisville to Islip with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Louisville to Islip?

Round-trip flights from Louisville to Islip start at $223. Prices are below average for this route right now, with typical round-trip fares ranging from $326 to $440. The lowest price found in the past 5 days was $223 on Southwest.

Find deals

Cheapest flight	$279

Flight from Louisville to Islip

When to book flights from Louisville to Islip

Are your dates flexible? Find out the best times to travel from Louisville to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Louisville to Islip?
Flights from Louisville to Islip usually depart from Louisville Intl (SDF) and arrive at Islip Long Island (ISP).
What cabin classes can I book on flights from Louisville to Islip?
Only Economy Class is available on flights from Louisville to Islip.
Which airports do connecting flights from Louisville to Islip pass through?
Most connecting flights from Louisville to Islip pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.
Can I save money by using flexible dates for flights from Louisville to Islip?
Yes. Being flexible with your travel dates can save you up to 34% on the Louisville to Islip route. Friday is the cheapest departure day at $326 round-trip on average, while Thursday is the most expensive at $491, a difference of $165. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How long is a flight from Louisville to Islip?
A nonstop flight from Louisville to Islip takes 0h 00m, covering 697 miles.
Do I need a passport to fly from Louisville to Islip?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Louisville to Islip changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $223 to $1,690. That means the highest observed fare was about 8x higher than the lowest one.
How are flight prices from Louisville to Islip looking right now?
One-way fares from Louisville to Islip are currently higher than usual. Average one-way flight prices are about $329, which is 13% above the typical average for this route.
What car rental options are available at Islip Long Island Airport (ISP)?
Islip Long Island Airport (ISP) hosts 5 major car rental companies, with daily rates starting from around $36 for economy cars. Top options include:
• Budget
• Enterprise Rent-A-Car
• Avis
• National
• Empire Rent A Car

If your dates can be flexible, aim for a Friday departure instead of Thursday. On this route, Friday flights average $326 - about $165 less than Thursday (34% savings) based on the last 12 months.

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SDF - ISP

$223 Find Cheap Flights from Louisville to Islip - Compare and Save

Everything you should know

Cheap Flights from Louisville to Islip (SDF-ISP)

Recent round-trip flight deals from Louisville to Islip

Recent one-way flight deals from Louisville to Islip

Recent last minute flight deals from Louisville to Islip

Price, demand and travel trends for Louisville to Islip flights

How much is a round-trip flight from Louisville to Islip?

What is the cheapest airline to fly from Louisville to Islip?

What is the cheapest layover airport when flying from Louisville to Islip?

When flying from Louisville to Islip which airport offers the shortest layover?

Key details for Louisville to Islip flights

Cheapest flight

When to book flights from Louisville to Islip

Your Louisville to Islip flight questions, answered

Your guide to booking Louisville to Islip flights

More options for your flight from Louisville to Islip

Complete your trip to Islip with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Louisville to Islip

Find direct flights to and from Louisville and Islip

Flights from domestic origins to Islip

Flights to other popular destinations

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