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$141+ Cheap flights from Islip, NY to Indianapolis (ISP - IND)

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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — IND
Jul 16 — Jul 231
Thu 7/16
Thu 7/23
1 adult, Economy
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Cheap flight deals from Islip to Indianapolis

Cheapest flights from Islip to Indianapolis
Explore the most affordable flight options available from Islip to Indianapolis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.

This Southwest deal was found by Cheapflights users on 6/15. 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.
Wed 9/303:20 pm
ISP
-
IND
1 stop6h 20m
Southwest
Sat 10/312:35 pm
IND
-
ISP
1 stop7h 40m
Southwest
Deal found 6/15$314
This Trip.com deal was found by Cheapflights users on 6/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1310:57 am
ISP
-
IND
1 stop6h 40m
Frontier
Thu 7/2311:00 am
IND
-
ISP
1 stop22h 53m
Frontier
Deal found 6/16$359
This Southwest deal was found by Cheapflights users on 6/14. 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.
Tue 7/146:00 am
ISP
-
IND
1 stop6h 30m
Southwest
Thu 7/164:10 pm
IND
-
ISP
1 stop7h 35m
Southwest
Deal found 6/14$362
This Booking.com deal was found by Cheapflights users on 6/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:52 pm
ISP
-
IND
1 stop20h 21m
Frontier
Tue 6/307:08 pm
IND
-
ISP
1 stop25h 49m
Frontier
Deal found 6/12$366
This Southwest deal was found by Cheapflights users on 6/13. 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.
Tue 7/212:55 pm
ISP
-
IND
2 stops9h 00m
Southwest
Sat 7/252:20 pm
IND
-
ISP
2 stops8h 55m
Southwest
Deal found 6/13$386
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Sun 7/57:49 pm
ISP
-
IND
2 stops27h 36m
Multiple Airlines
Fri 7/316:57 pm
IND
-
ISP
1 stop18h 36m
Multiple Airlines
Deal found 6/12$389
This Kiwi.com deal was found by Cheapflights users on 6/14. 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.
Tue 7/75:27 pm
ISP
-
IND
2 stops17h 58m
Multiple Airlines
Thu 7/97:47 pm
IND
-
ISP
1 stop14h 06m
Multiple Airlines
Deal found 6/14$399

Find flight deals from Islip to Indianapolis

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Indianapolis (IND). 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 June 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$314
(Southwest)

One-way from

$141
(Frontier)

Popular in

April

Cheapest in

February

Average price

$360
Provider with most accurate pricing for Islip Long Island-Indianapolis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Indianapolis flights.
Search Deals
From Islip Long Island to Indianapolis
Search Deals
One-way flight from Islip Long Island to Indianapolis
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Indianapolis 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 June 16, 2026.
Use the filters below to find and compare flights from Islip to Indianapolis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 9/30

12:55 pm-10:20 pm

2 stops9h 25m

Indianapolis

Sat 10/3

5:45 am-3:00 pm

2 stops9h 15m

$324

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 7/21

4:40 pm-11:15 pm

1 stop6h 35m

Indianapolis

Sat 7/25

2:20 pm-11:00 pm

1 stop8h 40m

$362

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 7/5

7:49 pm-11:25 pm

2 stops27h 36m

Indianapolis

Fri 7/31

6:57 pm-1:33 pm

1 stop18h 36m

$389
Quickest round-trip

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 7/7

4:40 pm-11:15 pm

1 stop6h 35m

Indianapolis

Thu 7/9

4:10 pm-11:45 pm

1 stop7h 35m

$407

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 7/14

2:55 pm-11:55 pm

2 stops9h 00m

Indianapolis

Thu 7/16

4:05 pm-11:40 pm

2 stops7h 35m

$422

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 7/13

5:20 am-12:35 pm

1 stop7h 15m

Indianapolis

Thu 7/23

4:05 pm-11:40 pm

2 stops7h 35m

$432

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 7/5

2:55 pm-11:30 pm

2 stops8h 35m

Indianapolis

Fri 7/31

4:05 pm-11:40 pm

2 stops7h 35m

$501
Cheapest one-way

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 7/8

10:57 am-6:15 pm

1 stop7h 18m

$141

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 8/5

10:57 am-6:15 pm

1 stop7h 18m

$141

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 6/30

4:41 pm-6:13 pm

1 stop25h 32m

$164

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 14 resultsSorted by cheapest first
1
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Compare providers for flights from Islip to Indianapolis

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 Islip to Indianapolis in June.
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 Islip, New York-Indianapolis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Indianapolis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Indianapolis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Indianapolis 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 Islip, New York-Indianapolis 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 Islip to Indianapolis

Have a flexible travel schedule? Discover the best time to fly to Indianapolis from Islip 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.

Related info for your journey

Find useful and relevant information for your journey from Islip to Indianapolis. 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 Islip, New York to Indianapolis?

    Departing from Islip, New York to Indianapolis will take you 9h 25m. There are 699 mi between Islip, New York and Indianapolis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to Indianapolis 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 Indianapolis?

Book flights to Indianapolis if you plan to visit one of these locations
Terre Haute
Muncie
Greenwood
Fishers
Kokomo
Plainfield
Mooresville
Anderson
Crawfordsville
Franklin
Carmel
Noblesville
Bloomington

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