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$135+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — IND
May 30 — Jun 61
Sat 5/30
Sat 6/6
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 April 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/266:02 pm
ISP
-
IND
2 stops17h 19m
Multiple Airlines
Tue 6/21:46 pm
IND
-
ISP
1 stop20h 19m
Multiple Airlines
Deal found 4/26$200
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/125:27 pm
ISP
-
IND
2 stops29h 14m
Multiple Airlines
Sat 5/1610:07 pm
IND
-
ISP
1 stop12h 20m
Multiple Airlines
Deal found 4/26$318
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Wed 5/1311:00 am
ISP
-
IND
1 stop11h 41m
Multiple Airlines
Thu 5/148:39 pm
IND
-
ISP
2 stops13h 26m
Multiple Airlines
Deal found 4/27$357
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Wed 5/2011:00 am
ISP
-
IND
1 stop26h 01m
Multiple Airlines
Tue 5/2612:26 pm
IND
-
ISP
2 stops45h 39m
Multiple Airlines
Deal found 4/29$376
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Thu 5/1411:12 am
ISP
-
IND
1 stop11h 29m
Multiple Airlines
Mon 5/186:40 pm
IND
-
ISP
2 stops39h 25m
Multiple Airlines
Deal found 4/29$380
This Southwest deal was found by Cheapflights users on 4/28. 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.
Fri 9/186:10 am
ISP
-
IND
1 stop6h 30m
Southwest
Mon 9/219:10 am
IND
-
ISP
1 stop3h 25m
Southwest
Deal found 4/28$382
This Southwest deal was found by Cheapflights users on 4/28. 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 6/106:00 am
ISP
-
IND
1 stop6h 30m
Southwest
Wed 6/104:10 pm
IND
-
ISP
1 stop6h 25m
Southwest
Deal found 4/28$396

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 April 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$200
(Kiwi.com)

One-way from

$135
(Frontier)

Popular in

April

Cheapest in

February

Average price

$369
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. 13% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 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 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 April 30, 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

Tue 5/12

5:27 pm-10:41 pm

2 stops29h 14m

Indianapolis

Sat 5/16

10:07 pm-10:27 am

1 stop12h 20m

$318

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 5/20

11:00 am-1:01 pm

1 stop26h 01m

Indianapolis

Tue 5/26

12:26 pm-10:05 am

2 stops45h 39m

$376

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 5/14

11:12 am-10:41 pm

1 stop11h 29m

Indianapolis

Mon 5/18

6:40 pm-10:05 am

2 stops39h 25m

$380
Quickest round-trip

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 9/18

6:10 am-12:40 pm

1 stop6h 30m

Indianapolis

Mon 9/21

9:10 am-12:35 pm

1 stop3h 25m

$382

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 6/10

6:00 am-12:30 pm

1 stop6h 30m

Indianapolis

Wed 6/10

4:10 pm-10:35 pm

1 stop6h 25m

$396

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 8/3

6:00 am-12:30 pm

1 stop6h 30m

Indianapolis

Thu 8/6

1:15 pm-10:05 pm

2 stops8h 50m

$412

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 5/26

2:30 pm-11:45 pm

2 stops9h 15m

Indianapolis

Tue 6/2

6:40 am-1:50 pm

2 stops7h 10m

$417

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 5/29

11:00 am-10:41 pm

1 stop11h 41m

Indianapolis

Sun 5/31

9:18 pm-1:28 pm

2 stops16h 10m

$432

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 5/20

2:30 pm-11:45 pm

2 stops9h 15m

Indianapolis

Tue 5/26

1:25 pm-10:10 pm

2 stops8h 45m

$475
Cheapest one-way

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 6/24

10:48 am-6:13 pm

1 stop7h 25m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 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.

Reviews of airlines servicing Indianapolis

Get insights into the airlines that provide service to Indianapolis. 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 Indianapolis. Reviews last updated April 30, 2026.
See what other customers who have flown with Southwest from Islip to Indianapolis 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
4,314 reviews

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

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
4,314 reviews
Southwest
8.0
Very good
4,314 reviews

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

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 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 6h 30m. There are 699 mi between Islip, New York and Indianapolis.

  • What is the cheapest airline to fly from Islip, New York to Indianapolis round-trip?

    Southwest, at $271, was found to be the cheapest airline from Islip, New York to 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
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Kokomo
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Noblesville
Bloomington

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Top airline flying from Islip to Indianapolis

Discover the top airline that operate flights from Islip to Indianapolis. 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 April 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$271Average$346FlexibilityNo cancel feeOn-time63%

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