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Islip

$211+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ISP
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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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 December 4, 2025.

This CheapOair deal was found by Cheapflights users on 12/3. 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.
Sun 12/215:06 pmIND - ISP
1 stop20h 03mFrontier
Mon 12/228:35 pmISP - IND
1 stop19h 36mFrontier
Deal found 12/3$507
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Thu 12/255:06 pmIND - ISP
1 stop26h 34mFrontier
Mon 12/298:35 pmISP - IND
1 stop19h 36mFrontier
Deal found 12/3$648
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Thu 12/255:06 pmIND - ISP
1 stop26h 34mFrontier
Sun 12/288:35 pmISP - IND
1 stop19h 35mFrontier
Deal found 12/3$692
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Mon 12/225:05 pmIND - ISP
1 stop18h 20mFrontier
Thu 12/2512:20 pmISP - IND
1 stop28h 02mFrontier
Deal found 12/3$777
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Tue 12/235:06 pmIND - ISP
1 stop23h 31mFrontier
Fri 12/268:35 pmISP - IND
1 stop24h 23mFrontier
Deal found 12/3$842
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Sun 12/215:06 pmIND - ISP
1 stop20h 03mFrontier
Wed 12/245:27 pmISP - IND
1 stop22h 54mFrontier
Deal found 12/3$881
This CheapOair deal was found by Cheapflights users on 12/3. 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 12/265:07 pmIND - ISP
1 stop24h 48mFrontier
Sun 12/288:35 pmISP - IND
1 stop19h 35mFrontier
Deal found 12/3$899
This CheapOair deal was found by Cheapflights users on 12/4. 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.
Tue 12/235:06 pmIND - ISP
1 stop23h 31mFrontier
Sat 12/276:40 pmISP - IND
1 stop21h 31mFrontier
Deal found 12/4$927

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$184
(Southwest)

One-way from

$139
(CheapOair)

Popular in

November

Cheapest in

February

Average price

$265
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. 18% potential increase in price ($50 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 December 2025
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 December 4, 2025.
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 1/29

8:31 pm-8:47 pm

1 stop24h 16m

Islip Long Island

Sun 2/1

9:25 am-8:49 pm

1 stop11h 24m

$326

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 3/12

5:06 pm-7:11 pm

1 stop26h 05m

Islip Long Island

Sun 3/15

8:19 pm-9:38 am

1 stop13h 19m

$368

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sun 12/21

5:06 pm-1:09 pm

1 stop20h 03m

Islip Long Island

Mon 12/22

8:35 pm-4:11 pm

1 stop19h 36m

$507

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 12/25

5:06 pm-7:40 pm

1 stop26h 34m

Islip Long Island

Mon 12/29

8:35 pm-4:11 pm

1 stop19h 36m

$648

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 12/25

5:06 pm-7:40 pm

1 stop26h 34m

Islip Long Island

Sun 12/28

8:35 pm-4:10 pm

1 stop19h 35m

$692

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Fri 3/13

10:36 am-7:11 pm

1 stop8h 35m

Islip Long Island

Sun 3/15

8:19 pm-9:38 am

1 stop13h 19m

$712

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sat 2/14

5:06 pm-4:06 pm

1 stop23h 00m

Islip Long Island

Sat 2/21

7:41 pm-4:11 pm

1 stop20h 30m

$727

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Mon 12/22

5:05 pm-11:25 am

1 stop18h 20m

Islip Long Island

Thu 12/25

12:20 pm-4:22 pm

1 stop28h 02m

$777

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Tue 12/23

5:06 pm-4:37 pm

1 stop23h 31m

Islip Long Island

Fri 12/26

8:35 pm-8:58 pm

1 stop24h 23m

$842

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sun 12/21

5:06 pm-1:09 pm

1 stop20h 03m

Islip Long Island

Wed 12/24

5:27 pm-4:21 pm

1 stop22h 54m

$881

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 16 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 December.
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 January is currently the most expensive (average of $89). 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.

What is the cheapest time of day to fly from IND to ISP?

Find hourly flight availability from Indianapolis to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 55% on flights from Indianapolis to Islip, New York by exploring options for tickets at noon.

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 December 4, 2025.
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
4,250 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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 24h 16m. Frontier provides one of the quickest options available for as low as $326. 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 January is currently the most expensive (average of $89). 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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Alternative routes for Indianapolis to Islip

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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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$280Average$366FlexibilityNo cancel feeOn-time63%

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