What airlines fly to Indianapolis?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Indianapolis from Islip, New York according to our data. Delta is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Indianapolis. Keep in mind that there are 7 different airlines that fly to Indianapolis on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Islip Long Island to Indianapolis?

Frontier is the most popular carrier operating from Islip Long Island to Indianapolis

When did momondo last update prices for flights from Islip Long Island Airport to Indianapolis Airport?

Prices for flights from Islip Long Island Airport to Indianapolis Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Islip Long Island Airport to Indianapolis Airport?

The number of operators available for flights from Islip Long Island Airport to Indianapolis Airport is 1 as of January 2026.

How old do you have to be to fly from Islip Long Island Airport to Indianapolis Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Indianapolis Airport.

What documentation or ID do you need to fly to Indianapolis Airport?

The travel and health documents you'll need for your trip to Indianapolis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Indianapolis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$125 Cheap Flights from Islip to Indianapolis in 2026

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Find the cheapest flights from Islip, New York to Indianapolis

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:50 am - 11:43 am

ISP

IND

23h 53m

2 stops

8:58 pm - 7:48 am

IND

ISP

10h 50m

1 stop

$232Multiple Airlines

Sat, Feb 7 - Sat, Feb 14

3:35 pm - 10:25 pm

ISP

IND

6h 50m

1 stop

5:25 am - 10:10 am

IND

ISP

4h 45m

1 stop

$325Southwest

Sat, Feb 7 - Sat, Feb 14

12:15 pm - 8:25 pm

ISP

IND

8h 10m

2 stops

5:35 am - 3:25 pm

IND

ISP

9h 50m

2 stops

$357Southwest

Sat, Feb 7 - Sat, Feb 14

8:33 am - 9:12 pm

ISP

IND

12h 39m

1 stop

8:58 pm - 7:48 am

IND

ISP

10h 50m

1 stop

$1,078Frontier

Sun, Feb 15 - Sat, Feb 21

Frontier flights from Islip, New York to Indianapolis

Our best Frontier deals on Islip, New York to Indianapolis flight tickets

Frontier

Feb 27

ISP8:33 amIslip Long Island

8h 52m

1 stop

IND5:25 pmIndianapolis

Mar 1

IND9:57 pmIndianapolis

9h 41m

1 stop

ISP7:38 amIslip Long Island

$190

Frontier

Feb 15

ISP8:33 amIslip Long Island

12h 39m

1 stop

IND9:12 pmIndianapolis

Feb 21

IND8:58 pmIndianapolis

10h 50m

1 stop

ISP7:48 amIslip Long Island

$1,078

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets

Southwest

Feb 7

ISP3:35 pmIslip Long Island

6h 50m

1 stop

IND10:25 pmIndianapolis

Feb 14

IND5:25 amIndianapolis

4h 45m

1 stop

ISP10:10 amIslip Long Island

$325

Southwest

Feb 7

ISP12:15 pmIslip Long Island

8h 10m

2 stops

IND8:25 pmIndianapolis

Feb 14

IND5:35 amIndianapolis

9h 50m

2 stops

ISP3:25 pmIslip Long Island

$357

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 2/7

11:50 am-11:43 am

2 stops23h 53m

Indianapolis

Sat 2/14

8:58 pm-7:48 am

1 stop10h 50m

$232

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 2/7

3:35 pm-10:25 pm

1 stop6h 50m

Indianapolis

Sat 2/14

5:25 am-10:10 am

1 stop4h 45m

$325

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 2/7

12:15 pm-8:25 pm

2 stops8h 10m

Indianapolis

Sat 2/14

5:35 am-3:25 pm

2 stops9h 50m

$357

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 2/15

8:33 am-9:12 pm

1 stop12h 39m

Indianapolis

Sat 2/21

8:58 pm-7:48 am

1 stop10h 50m

$1,078

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 1/23

9:43 pm-7:06 pm

1 stop21h 23m

$125

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 1/24

7:35 pm-11:43 am

2 stops40h 08m

$176

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 1/23

2:01 pm-11:26 am

2 stops21h 25m

$188

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 1/22

7:26 pm-11:26 am

3 stops40h 00m

$189

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 1/24

11:50 am-8:13 pm

3 stops32h 23m

$199

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 1/23

2:01 pm-9:43 am

3 stops19h 42m

$209

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Islip, New York to Indianapolis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Indianapolis?

Our data shows that Wednesday is the least expensive day to fly to Indianapolis. Tickets to fly out on this day can be as low as $236. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Indianapolis on Sunday is $302.

What is the cheapest time of day to depart on your flight to Indianapolis?

Flying to Indianapolis from Islip, New York in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $242 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $280 on average. Flights to Indianapolis from Islip, New York in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Islip, New York to Indianapolis

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Indianapolis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Islip, New York to Indianapolis (ISP to IND) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Indianapolis

Fastest flight time	12h 39m
Direct flights	None

The fastest flight from Islip, New York to Indianapolis takes 12h 39m

There are no direct flights from Islip, New York to Indianapolis. There are no popular flight routes from Islip, New York to Indianapolis.

Search flight deals

How far is Islip Long Island to Indianapolis by plane?
There are 684.9 mi between Islip Long Island and Indianapolis. Flights usually cover this in 12h 39m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Islip Long Island Airport to Indianapolis Airport?
Prices for flights from Islip Long Island Airport to Indianapolis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Islip Long Island Airport to Indianapolis Airport?
The number of operators available for flights from Islip Long Island Airport to Indianapolis Airport is 1 as of January 2026.
How old do you have to be to fly from Islip Long Island Airport to Indianapolis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Indianapolis Airport.
What documentation or ID do you need to fly to Indianapolis Airport?
The travel and health documents you'll need for your trip to Indianapolis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Indianapolis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Islip, New York to Indianapolis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Islip, New York to Indianapolis is Southwest (100% of total bookings).

Best airlines flying from Islip, New York to Indianapolis

Compare and see reviews for airlines that fly from Islip, New York to Indianapolis with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $271	Free Cancellation	Rating 8.0 4,256 reviews		Search Southwest flights

Terre Haute

Bloomington

Kokomo

Muncie

Plainfield

Anderson

Greenwood

Noblesville

Fishers

Carmel

Shelbyville

Franklin

West Lafayette

Seymour

Brownsburg

Crawfordsville

Speedway

Greenfield

Westfield

Mooresville

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Indianapolis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Islip to Indianapolis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Islip to Indianapolis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Islip to Indianapolis flights to just show those with flexible booking policies.

How can momondo help me find flights from Islip to Indianapolis?

momondo provides multiple filters to help you find the best flight to Indianapolis from Islip. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Islip to Indianapolis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Islip to Indianapolis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.