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

A quick flight from Indianapolis to Islip, New York can take about 8h 35m. Frontier provides one of the quickest options available for as low as $452. 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.

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.

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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.

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.

$102+ Flights from Indianapolis to Islip, NY

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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 21, 2025.

Sun 12/215:20 amIND - ISP

1 stop6h 35mSouthwest

Sun 12/286:00 pmISP - IND

1 stop6h 35mSouthwest

Deal found 12/20

$702

Tue 12/237:50 amIND - ISP

1 stop6h 10mSouthwest

Thu 12/253:40 pmISP - IND

1 stop7h 45mSouthwest

Deal found 12/20

$757

Sat 12/279:43 pmIND - ISP

1 stop21h 57mFrontier

Sat 1/37:30 pmISP - IND

1 stop20h 41mFrontier

Deal found 12/20

$772

Best flights from Indianapolis to Islip
Discover carefully curated flight deals from Indianapolis to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 21, 2025.

Thu 1/228:31 pmIND - ISP

1 stop24h 16mFrontier

Sun 1/259:25 amISP - IND

1 stop11h 24mFrontier

Deal found 12/19

$218

Sat 3/213:00 pmIND - ISP

2 stops8h 35mSouthwest

Sun 3/295:40 pmISP - IND

1 stop6h 40mSouthwest

Deal found 12/20

$452

Sun 4/55:06 pmIND - ISP

1 stop15h 35mFrontier

Sun 4/128:19 pmISP - IND

1 stop19h 52mFrontier

Deal found 12/20

$348

Last-minute flights from Indianapolis to Islip
Discover last-minute flight deals from Indianapolis to Islip. Data last updated December 21, 2025 and is based on user searches.

Sun 12/215:20 amIND - ISP

1 stop6h 35mSouthwest

Sun 12/286:00 pmISP - IND

1 stop6h 35mSouthwest

Deal found 12/20

$702

Tue 12/237:50 amIND - ISP

1 stop6h 10mSouthwest

Thu 12/253:40 pmISP - IND

1 stop7h 45mSouthwest

Deal found 12/20

$757

Sat 12/279:43 pmIND - ISP

1 stop21h 57mFrontier

Sat 1/37:30 pmISP - IND

1 stop20h 41mFrontier

Deal found 12/20

$772

Thu 1/228:31 pmIND - ISP

1 stop24h 16mFrontier

Sun 1/259:25 amISP - IND

1 stop11h 24mFrontier

Deal found 12/19

$218

One-way flights from Indianapolis to Islip
Search for one-way flight options from Indianapolis to Islip. Find affordable one-way fares based on user searches. Data last updated December 21, 2025.

Thu 1/155:10 amIND - ISP

2 stops13h 53mMultiple Airlines

Deal found 12/19

$102

Sun 1/259:34 pmIND - ISP

1 stop21h 14mFrontier

Deal found 12/20

$123

Thu 1/152:36 pmIND - ISP

1 stop29h 33mFrontier

Deal found 12/19

$138

Thu 1/15:06 pmIND - ISP

1 stop20h 03mFrontier

Deal found 12/20

$437

Find flight deals from Indianapolis to Islip

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$218 (CheapOair)
One-way from	$102 (Kiwi.com)
Popular in	November
Cheapest in	January
Average price	$279

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. 17% potential increase in price ($48 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 1/22

8:31 pm-8:47 pm

1 stop24h 16m

Islip Long Island

Sun 1/25

9:25 am-8:49 pm

1 stop11h 24m

$218

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sun 4/5

5:06 pm-8:41 am

1 stop15h 35m

Islip Long Island

Sun 4/12

8:19 pm-4:11 pm

1 stop19h 52m

$348

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sat 3/21

3:00 pm-11:35 pm

2 stops8h 35m

Islip Long Island

Sun 3/29

5:40 pm-12:20 am

1 stop6h 40m

$452

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 1/15

5:10 am-7:03 pm

2 stops13h 53m

$102

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Sun 1/25

9:34 pm-6:48 pm

1 stop21h 14m

$123

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 1/15

2:36 pm-8:09 pm

1 stop29h 33m

$138

IndianapolisIslip

IND - ISP

INDISP

Indianapolis

Thu 1/1

5:06 pm-1:09 pm

1 stop20h 03m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Compare providers for flights from Indianapolis to Islip

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.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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 December is currently the most expensive (average of $90). 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?

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

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

4,257 reviews

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

4,257 reviews

Southwest

8.0

Very good

4,257 reviews

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

How long is the flight from Indianapolis to Islip, New York?
A quick flight from Indianapolis to Islip, New York can take about 8h 35m. Frontier provides one of the quickest options available for as low as $452. 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.
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 December is currently the most expensive (average of $90). 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

Riverhead

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Top airline flying from Indianapolis to Islip

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$280	Average$366	FlexibilityNo cancel fee	On-time63%

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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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Indianapolis to Islip with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Indianapolis to Islip

Cheapest flights from Indianapolis to IslipExplore 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 21, 2025.

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 21, 2025.

Find flight deals from Indianapolis to Islip

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

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.

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?

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

Reviews of airlines servicing Islip

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.

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?

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

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

How can I find direct flights from Indianapolis to Islip?

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

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

Traveling to a place near Islip?

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Alternative routes for Indianapolis to Islip

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Top airline flying from Indianapolis to Islip

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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 21, 2025.