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$102+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ISP
Feb 8 — Feb 151
Sun 2/8
Sun 2/15
1 adult, Economy
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Cheap 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 January 9, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$236
(Kiwi.com)

One-way from

$102
(CheapOair)

Popular in

November

Cheapest in

January

Average price

$159
Provider with most accurate pricing for Indianapolis-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Indianapolis-Islip Long Island flights.
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From Indianapolis to Islip Long Island
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One-way flight from Indianapolis to Islip Long Island
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Highest demand for flights based on searches. 15% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/2212:38 pmIND - ISP
2 stops24h 43mMultiple Airlines
Mon 1/267:43 pmISP - IND
1 stop22h 40mMultiple Airlines
Deal found 1/7$236
This CheapOair deal was found by Cheapflights users on 1/7. 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.
Sat 1/248:01 pmIND - ISP
1 stop12h 39mFrontier
Sun 2/19:25 amISP - IND
1 stop11h 24mFrontier
Deal found 1/7$313
This Southwest deal was found by Cheapflights users on 1/8. 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.
Thu 6/254:40 pmIND - ISP
1 stop6h 55mSouthwest
Tue 6/3012:25 pmISP - IND
1 stop3h 50mSouthwest
Deal found 1/8$362
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/1412:21 pmIND - ISP
1 stop20h 34mMultiple Airlines
Wed 1/2111:50 amISP - IND
2 stops31h 46mMultiple Airlines
Deal found 1/7$450
This Southwest deal was found by Cheapflights users on 1/8. 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.
Thu 6/185:40 amIND - ISP
1 stop6h 10mSouthwest
Sun 6/216:00 amISP - IND
1 stop6h 10mSouthwest
Deal found 1/8$454
This Southwest deal was found by Cheapflights users on 1/7. 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 1/145:35 amIND - ISP
1 stop6h 20mSouthwest
Wed 1/216:00 amISP - IND
1 stop5h 50mSouthwest
Deal found 1/7$512
This CheapOair deal was found by Cheapflights users on 1/8. 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.
Fri 2/136:10 pmIND - ISP
1 stop16h 36mFrontier
Mon 2/163:34 pmISP - IND
1 stop28h 54mFrontier
Deal found 1/8$521

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 January 9, 2026.
Use the filters below to find and compare flights from Indianapolis to Islip that are best for you.

Fly from

Indianapolis

Fly to

Islip

Route

Depart

Return

Price

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 1/22

12:38 pm-1:21 pm

2 stops24h 43m

Islip Long Island

Mon 1/26

7:43 pm-6:23 pm

1 stop22h 40m

$236

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sat 1/24

8:01 pm-8:40 am

1 stop12h 39m

Islip Long Island

Sun 2/1

9:25 am-8:49 pm

1 stop11h 24m

$313

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 1/29

8:31 pm-8:47 pm

1 stop24h 16m

Islip Long Island

Sun 2/1

9:25 am-8:49 pm

1 stop11h 24m

$313

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 6/25

4:40 pm-11:35 pm

1 stop6h 55m

Islip Long Island

Tue 6/30

12:25 pm-4:15 pm

1 stop3h 50m

$362

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 6/18

5:40 am-11:50 am

1 stop6h 10m

Islip Long Island

Sun 6/21

6:00 am-12:10 pm

1 stop6h 10m

$454

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Fri 2/13

6:10 pm-10:46 am

1 stop16h 36m

Islip Long Island

Mon 2/16

3:34 pm-8:28 pm

1 stop28h 54m

$521

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Tue 2/10

9:13 pm-1:13 pm

1 stop16h 00m

Islip Long Island

Thu 2/12

3:34 pm-5:25 pm

1 stop25h 51m

$584

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sat 1/24

8:01 pm-8:40 am

1 stop12h 39m

$102

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 3/12

9:07 am-4:13 pm

1 stop7h 06m

$130

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sat 2/14

8:58 pm-7:06 pm

1 stop22h 08m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 13 results
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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Indianapolis-Islip, New York flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from Indianapolis to Islip

What is the cheapest month to book a flight from Indianapolis to Islip, New York?

Currently, March is the cheapest month in which you can book a flight from Indianapolis to Islip, New York (average of $46). Flying from Indianapolis to Islip, New York in July is currently the most expensive (average of $88). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 January 9, 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
4,248 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 12h 39m. Frontier provides one of the quickest options available for as low as $313. The distance from Indianapolis to Islip, New York is about 699 mi.

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

    Flying on Southwest is currently your cheapest option to Islip, New York, with prices starting at $280.

  • 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.

  • What is the cheapest month to book a flight from Indianapolis to Islip, New York?

    Currently, March is the cheapest month in which you can book a flight from Indianapolis to Islip, New York (average of $46). Flying from Indianapolis to Islip, New York in July is currently the most expensive (average of $88). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Islip?

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

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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 January 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$280Average$366FlexibilityNo cancel feeOn-time63%

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