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?

Southwest 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.

$119 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 - 5:45 pm

ISP

IND

5h 55m1 stop

5:05 am - 11:55 am

IND

ISP

6h 50m1 stop

$351Southwest

Mon, Feb 9 - Thu, Feb 19

5:55 am - 1:10 pm

ISP

IND

7h 15m2 stops

5:05 am - 11:55 am

IND

ISP

6h 50m1 stop

$357Southwest

Mon, Feb 9 - Thu, Feb 19

5:55 am - 1:10 pm

ISP

IND

7h 15m2 stops

6:30 am - 4:25 pm

IND

ISP

9h 55m2 stops

$389Southwest

Mon, Feb 9 - Thu, Feb 19

12:20 pm - 6:35 pm

ISP

IND

6h 15m1 stop

11:25 am - 4:15 pm

IND

ISP

4h 50m1 stop

$512Southwest

Sat, Jan 17 - Tue, Jan 20

12:20 pm - 8:25 pm

ISP

IND

8h 05m1 stop

10:55 am - 9:55 pm

IND

ISP

11h 00m2 stops

$517Southwest

Sat, Jan 17 - Tue, Jan 20

12:15 pm - 9:10 pm

ISP

IND

8h 55m2 stops

10:55 am - 9:55 pm

IND

ISP

11h 00m2 stops

$523Southwest

Sat, Jan 17 - Tue, Jan 20

Southwest flights from Islip, New York to Indianapolis

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

Southwest

Feb 9

ISP11:50 amIslip Long Island

5h 55m

1 stop

IND5:45 pmIndianapolis

Feb 19

IND5:05 amIndianapolis

6h 50m

1 stop

ISP11:55 amIslip Long Island

$351

Find similar

Southwest

Feb 9

ISP5:55 amIslip Long Island

7h 15m

2 stops

IND1:10 pmIndianapolis

Feb 19

IND5:05 amIndianapolis

6h 50m

1 stop

ISP11:55 amIslip Long Island

$357

Find similar

Southwest

Feb 9

ISP5:55 amIslip Long Island

7h 15m

2 stops

IND1:10 pmIndianapolis

Feb 19

IND6:30 amIndianapolis

9h 55m

2 stops

ISP4:25 pmIslip Long Island

$389

Find similar

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

Mon 2/9

11:50 am-5:45 pm

1 stop5h 55m

Indianapolis

Thu 2/19

5:05 am-11:55 am

1 stop6h 50m

$351

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 2/9

5:55 am-1:10 pm

2 stops7h 15m

Indianapolis

Thu 2/19

5:05 am-11:55 am

1 stop6h 50m

$357

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 2/9

5:55 am-1:10 pm

2 stops7h 15m

Indianapolis

Thu 2/19

6:30 am-4:25 pm

2 stops9h 55m

$389

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 1/17

12:20 pm-6:35 pm

1 stop6h 15m

Indianapolis

Tue 1/20

11:25 am-4:15 pm

1 stop4h 50m

$512

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 1/17

12:20 pm-8:25 pm

1 stop8h 05m

Indianapolis

Tue 1/20

10:55 am-9:55 pm

2 stops11h 00m

$517

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 1/17

12:15 pm-9:10 pm

2 stops8h 55m

Indianapolis

Tue 1/20

10:55 am-9:55 pm

2 stops11h 00m

$523

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 2/18

12:40 pm-4:45 pm

1 stop4h 05m

$119

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 2/18

12:40 pm-10:05 pm

2 stops9h 25m

$124

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 1/18

9:52 am-5:02 pm

1 stop7h 10m

$145

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 2/18

11:50 am-10:48 pm

3 stops34h 58m

$167

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 $235. 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 $300.

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 $243 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	5h 55m
Direct flights	None

The fastest flight from Islip, New York to Indianapolis takes 5h 55m

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 5h 55m, 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 4,248 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.