HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$96+ Cheap flights from Indianapolis to Islip, NY (IND - ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ISP
Thg. 5 23 — Thg. 5 301
Th. 7 5/23
Th. 7 5/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Indianapolis to Islip with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Indianapolis to Islip

Cheapest flights from Indianapolis to Islip
Explore the most affordable flight options available from Indianapolis to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Tháng Tư 23, 2026.

This CheapOair deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
CN 5/38:33 am
IND
-
ISP
1 stop24h 40m
Frontier
Th. 3 5/55:38 pm
ISP
-
IND
1 stop19h 08m
Frontier
Deal found 4/19$180
This Lucky2Go deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lucky2Go is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Th. 3 5/51:46 pm
IND
-
ISP
1 stop20h 19m
Frontier
Th. 5 5/711:12 am
ISP
-
IND
2 stops24h 11m
Frontier
Deal found 4/18$236
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Th. 2 5/181:46 pm
IND
-
ISP
1 stop21h 14m
Frontier
Th. 2 5/256:43 pm
ISP
-
IND
2 stops40h 40m
Frontier
Deal found 4/20$296
This Southwest deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
CN 10/45:45 pm
IND
-
ISP
1 stop5h 50m
Southwest
Th. 6 10/96:00 am
ISP
-
IND
1 stop5h 00m
Southwest
Deal found 4/18$387
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Th. 2 5/185:00 am
IND
-
ISP
1 stop7h 05m
Southwest
Th. 2 5/258:35 am
ISP
-
IND
1 stop6h 50m
Southwest
Deal found 4/20$407
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
CN 5/105:05 am
IND
-
ISP
1 stop6h 05m
Southwest
Th. 5 5/145:10 pm
ISP
-
IND
1 stop6h 15m
Southwest
Deal found 4/21$437
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
CN 5/101:46 pm
IND
-
ISP
1 stop20h 19m
Multiple Airlines
Th. 5 5/146:46 pm
ISP
-
IND
2 stops40h 35m
Multiple Airlines
Deal found 4/21$443

Find flight deals from Indianapolis to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated Tháng Tư 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$180
(CheapOair)

One-way from

$96
(CheapOair)

Popular in

November

Cheapest in

January

Average price

$257
Provider with most accurate pricing for Indianapolis-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Indianapolis-Islip Long Island flights.
Search Deals
From Indianapolis to Islip Long Island
Search Deals
One-way flight from Indianapolis to Islip Long Island
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Indianapolis to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Tháng Tư 23, 2026.
Use the filters below to find and compare flights from Indianapolis to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

CN 5/3

8:33 am-9:13 am

1 stop24h 40m

Islip Long Island

Th. 3 5/5

5:38 pm-12:46 pm

1 stop19h 08m

$180

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Th. 3 5/5

1:46 pm-10:05 am

1 stop20h 19m

Islip Long Island

Th. 5 5/7

11:12 am-11:23 am

2 stops24h 11m

$236
Quickest round-trip

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

CN 10/4

5:45 pm-11:35 pm

1 stop5h 50m

Islip Long Island

Th. 6 10/9

6:00 am-11:00 am

1 stop5h 00m

$387

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Th. 2 5/18

5:00 am-12:05 pm

1 stop7h 05m

Islip Long Island

Th. 2 5/25

8:35 am-3:25 pm

1 stop6h 50m

$407

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

CN 5/10

5:05 am-11:10 am

1 stop6h 05m

Islip Long Island

Th. 5 5/14

5:10 pm-11:25 pm

1 stop6h 15m

$437

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

CN 5/10

1:46 pm-10:05 am

1 stop20h 19m

Islip Long Island

Th. 5 5/14

6:46 pm-11:21 am

2 stops40h 35m

$443
Cheapest one-way

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Th. 5 5/7

9:00 am-10:05 am

2 stops49h 05m

$145

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Th. 4 5/6

12:14 pm-10:27 am

2 stops22h 13m

$183

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

CN 6/7

5:15 am-11:45 am

1 stop6h 30m

$194

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Th. 7 8/22

5:50 am-2:30 pm

1 stop8h 40m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Indianapolis to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Indianapolis to Islip in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Indianapolis-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Indianapolis-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Indianapolis-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Indianapolis-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Indianapolis-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Indianapolis to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Indianapolis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated Tháng Tư 23, 2026.
See what other customers who have flown with Southwest from Indianapolis to Islip have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,327 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,327 reviews
Southwest
8.0
Very good
4,327 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Indianapolis to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Indianapolis to Islip, New York?

    A quick flight from Indianapolis to Islip, New York can take about 5h 50m. Frontier provides one of the quickest options available for as low as $387. The distance from Indianapolis to Islip, New York is about 699 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Indianapolis to Islip that include hotel bookings?

    Yes. In addition to deals on Indianapolis to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Indianapolis to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Indianapolis to Islip.

  • Can I find deals for business class flights from Indianapolis to Islip?

    Yes. Cheapflights offers flight deals from Indianapolis to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Indianapolis to Islip

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Newark flights
O'Hare Intl to LaGuardia flights
Midway to Newark flights
Midway to John F Kennedy Intl flights
Cincinnati to LaGuardia flights
Indianapolis to LaGuardia flights
Cincinnati to Newark flights
Midway to LaGuardia flights
Cincinnati to John F Kennedy Intl flights
Indianapolis to John F Kennedy Intl flights
Indianapolis to Newark flights
O'Hare Intl to Albany flights
Louisville to Newark flights
Louisville to LaGuardia flights
O'Hare Intl to Buffalo flights
Louisville to John F Kennedy Intl flights
O'Hare Intl to Rochester flights
O'Hare Intl to Syracuse flights
Midway to Albany flights
Midway to Buffalo flights
South Bend to John F Kennedy Intl flights
Midway to Rochester flights
Fort Wayne to Newark flights
Fort Wayne to LaGuardia flights
Fort Wayne to John F Kennedy Intl flights
Dayton to LaGuardia flights
Dayton to Newark flights
South Bend to LaGuardia flights
Dayton to John F Kennedy Intl flights
Indianapolis to Buffalo flights
South Bend to Newark flights
Kalamazoo to LaGuardia flights
Cincinnati to Albany flights
Cincinnati to Syracuse flights
Midway to White Plains flights
Indianapolis to Syracuse flights
O'Hare Intl to Stewart flights
Indianapolis to Rochester flights
Cincinnati to Buffalo flights
O'Hare Intl to Ithaca flights
Kalamazoo to Newark flights
Evansville to LaGuardia flights
Cincinnati to Rochester flights

Top airline flying from Indianapolis to Islip

Discover the top airline that operate flights from Indianapolis to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Tháng Tư 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$273Average$366FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.