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Cheap flights from Islip, New York to Indianapolis from $130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Indianapolis departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Islip, New York to Indianapolis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:07 pm - 8:08 am
ISP
-
IND
16h 01m
1 stop
Frontier Logo
7:18 pm - 9:13 am
IND
-
ISP
13h 55m
1 stop
$219Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
4:07 pm - 11:17 am
ISP
-
IND
19h 10m
2 stops
Frontier Logo
7:18 pm - 9:13 am
IND
-
ISP
13h 55m
1 stop
$245Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
4:07 pm - 9:49 am
ISP
-
IND
17h 42m
1 stop
Frontier Logo
7:18 pm - 9:13 am
IND
-
ISP
13h 55m
1 stop
$327Frontier
Fri, May 15 - Sun, May 17
Multiple Airlines Logo
2:28 pm - 11:22 pm
ISP
-
IND
8h 54m
2 stops
Multiple Airlines Logo
7:18 pm - 9:13 am
IND
-
ISP
13h 55m
1 stop
$394Multiple Airlines
Fri, May 15 - Sun, May 17
Frontier Logo
8:23 am - 5:25 pm
ISP
-
IND
9h 02m
1 stop
Frontier Logo
9:13 pm - 8:40 am
IND
-
ISP
11h 27m
1 stop
$400Frontier
Mon, Feb 23 - Tue, Feb 24
Southwest Logo
6:00 am - 12:25 pm
ISP
-
IND
6h 25m
1 stop
Southwest Logo
5:15 pm - 11:35 pm
IND
-
ISP
6h 20m
1 stop
$407Southwest
Fri, Mar 27 - Sat, Mar 28
Southwest Logo
6:00 am - 12:25 pm
ISP
-
IND
6h 25m
1 stop
Southwest Logo
8:05 pm - 11:50 pm
IND
-
ISP
3h 45m
1 stop
$428Southwest
Fri, Mar 27 - Sun, Mar 29
Southwest Logo
6:00 am - 12:25 pm
ISP
-
IND
6h 25m
1 stop
Southwest Logo
3:00 pm - 11:35 pm
IND
-
ISP
8h 35m
2 stops
$433Southwest
Fri, Mar 27 - Sat, Mar 28
Southwest Logo
5:35 pm - 12:05 am
ISP
-
IND
6h 30m
1 stop
Southwest Logo
5:25 am - 12:05 pm
IND
-
ISP
6h 40m
1 stop
$447Southwest
Thu, Feb 26 - Sat, Feb 28
Southwest Logo
5:35 pm - 12:05 am
ISP
-
IND
6h 30m
1 stop
Southwest Logo
5:25 am - 4:00 pm
IND
-
ISP
10h 35m
2 stops
$452Southwest
Thu, Feb 26 - Sat, Feb 28

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets
Southwest
Mar 27
ISP6:00 amIslip Long Island
6h 25m
1 stop
IND12:25 pmIndianapolis
Mar 28
IND5:15 pmIndianapolis
6h 20m
1 stop
ISP11:35 pmIslip Long Island
$407
Southwest
Mar 27
ISP6:00 amIslip Long Island
6h 25m
1 stop
IND12:25 pmIndianapolis
Mar 29
IND8:05 pmIndianapolis
3h 45m
1 stop
ISP11:50 pmIslip Long Island
$428
Southwest
Mar 27
ISP6:00 amIslip Long Island
6h 25m
1 stop
IND12:25 pmIndianapolis
Mar 28
IND3:00 pmIndianapolis
8h 35m
2 stops
ISP11:35 pmIslip Long Island
$433

Frontier flights from Islip, New York to Indianapolis

Our best Frontier deals on Islip, New York to Indianapolis flight tickets
Frontier
Apr 16
ISP4:07 pmIslip Long Island
16h 01m
1 stop
IND8:08 amIndianapolis
Apr 19
IND7:18 pmIndianapolis
13h 55m
1 stop
ISP9:13 amIslip Long Island
$219
Frontier
Apr 16
ISP4:07 pmIslip Long Island
19h 10m
2 stops
IND11:17 amIndianapolis
Apr 19
IND7:18 pmIndianapolis
13h 55m
1 stop
ISP9:13 amIslip Long Island
$245
Frontier
May 15
ISP4:07 pmIslip Long Island
17h 42m
1 stop
IND9:49 amIndianapolis
May 17
IND7:18 pmIndianapolis
13h 55m
1 stop
ISP9:13 amIslip Long Island
$327

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York to Indianapolis 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, momondo users made 832,500 searches. Data last updated February 11, 2026.
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

Thu 4/16

4:07 pm-8:08 am

1 stop16h 01m

Indianapolis

Sun 4/19

7:18 pm-9:13 am

1 stop13h 55m

$219

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 4/16

4:07 pm-11:17 am

2 stops19h 10m

Indianapolis

Sun 4/19

7:18 pm-9:13 am

1 stop13h 55m

$245

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 5/15

4:07 pm-9:49 am

1 stop17h 42m

Indianapolis

Sun 5/17

7:18 pm-9:13 am

1 stop13h 55m

$327

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 5/15

2:28 pm-11:22 pm

2 stops8h 54m

Indianapolis

Sun 5/17

7:18 pm-9:13 am

1 stop13h 55m

$394

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 2/23

8:23 am-5:25 pm

1 stop9h 02m

Indianapolis

Tue 2/24

9:13 pm-8:40 am

1 stop11h 27m

$400

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 3/27

6:00 am-12:25 pm

1 stop6h 25m

Indianapolis

Sat 3/28

5:15 pm-11:35 pm

1 stop6h 20m

$407

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 3/27

6:00 am-12:25 pm

1 stop6h 25m

Indianapolis

Sun 3/29

8:05 pm-11:50 pm

1 stop3h 45m

$428

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 3/27

6:00 am-12:25 pm

1 stop6h 25m

Indianapolis

Sat 3/28

3:00 pm-11:35 pm

2 stops8h 35m

$433

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 2/26

5:35 pm-12:05 am

1 stop6h 30m

Indianapolis

Sat 2/28

5:25 am-12:05 pm

1 stop6h 40m

$447

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 2/26

5:35 pm-12:05 am

1 stop6h 30m

Indianapolis

Sat 2/28

5:25 am-4:00 pm

2 stops10h 35m

$452

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Indianapolis from

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

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 $240. 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 $308.

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 $252 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 $281 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

6h 25m

Direct flights

None
The fastest flight from Islip, New York to Indianapolis takes 6h 25m
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 6h 25m, 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?

  • 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?

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
SouthwestPriceFrom $271Free CancellationRating
8.0
4,280 reviews
Search Southwest flights

Traveling to a place near Indianapolis?

Book flights to Indianapolis if you plan to visit one of these locations
Terre Haute
Bloomington
Kokomo
Muncie
Plainfield
Anderson
Greenwood
Noblesville
Fishers
Carmel
Shelbyville
Franklin
West Lafayette
Seymour
Brownsburg
Speedway
Crawfordsville
Westfield
Greenfield
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.

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