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Cheap flights from Islip, New York to Indianapolis from $124

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 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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
10:57 am - 9:14 pmISP  Islip Long Island-IND Indianapolis
10h 17m1 stop Orlando
Frontier Logo
7:33 pm - 9:53 amIND  Indianapolis-ISP Islip Long Island
14h 20m1 stop Orlando
$243Frontier
Thu, Sep 3 - Mon, Sep 7
Frontier Logo
10:57 am - 6:38 pmISP  Islip Long Island-IND Indianapolis
7h 41m1 stop Orlando
Frontier Logo
9:59 pm - 9:53 amIND  Indianapolis-ISP Islip Long Island
11h 54m1 stop Orlando
$284Frontier
Mon, Aug 31 - Thu, Sep 3
Multiple Airlines Logo
7:09 pm - 11:17 amISP  Islip Long Island-IND Indianapolis
16h 08m1 stop Orlando
Multiple Airlines Logo
7:33 pm - 4:47 pmIND  Indianapolis-ISP Islip Long Island
21h 14m2 stops Orlando Raleigh-Durham
$298Multiple Airlines
Thu, Sep 3 - Mon, Sep 7
Frontier Logo
10:57 am - 6:38 pmISP  Islip Long Island-IND Indianapolis
7h 41m1 stop Orlando
Frontier Logo
9:59 pm - 9:53 amIND  Indianapolis-ISP Islip Long Island
11h 54m1 stop Orlando
$314Frontier
Mon, Aug 31 - Thu, Sep 3
Frontier Logo
10:57 am - 6:38 pmISP  Islip Long Island-IND Indianapolis
7h 41m1 stop Orlando
Frontier Logo
9:59 pm - 9:53 amIND  Indianapolis-ISP Islip Long Island
11h 54m1 stop Orlando
$318Frontier
Sat, Aug 29 - Sun, Aug 30
Frontier Logo
10:57 am - 6:38 pmISP  Islip Long Island-IND Indianapolis
7h 41m1 stop Orlando
Frontier Logo
7:33 pm - 9:53 amIND  Indianapolis-ISP Islip Long Island
14h 20m1 stop Orlando
$337Frontier
Tue, Aug 25 - Sat, Aug 29
Frontier Logo
10:57 am - 6:38 pmISP  Islip Long Island-IND Indianapolis
7h 41m1 stop Orlando
Frontier Logo
9:59 pm - 9:53 amIND  Indianapolis-ISP Islip Long Island
11h 54m1 stop Orlando
$352Frontier
Mon, Aug 24 - Thu, Aug 27
Frontier Logo
10:57 am - 6:38 pmISP  Islip Long Island-IND Indianapolis
7h 41m1 stop Orlando
Frontier Logo
12:15 pm - 6:14 pmIND  Indianapolis-ISP Islip Long Island
5h 59m1 stop Orlando
$367Frontier
Mon, Aug 24 - Mon, Aug 31
Multiple Airlines Logo
2:28 pm - 6:38 pmISP  Islip Long Island-IND Indianapolis
28h 10m2 stops Raleigh-Durham Orlando
Multiple Airlines Logo
9:59 pm - 6:14 pmIND  Indianapolis-ISP Islip Long Island
20h 15m1 stop Orlando
$419Multiple Airlines
Mon, Aug 24 - Thu, Aug 27
Southwest Logo
1:15 pm - 11:00 pmISP  Islip Long Island-IND Indianapolis
9h 45m2 stops Palm Beach Intl Orlando
Southwest Logo
7:20 am - 4:25 pmIND  Indianapolis-ISP Islip Long Island
9h 05m2 stops Dallas Love Field Baltimore/Washington
$437Southwest
Thu, Sep 3 - Mon, Sep 7

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Frontier flights from Islip, New York to Indianapolis

Our best Frontier deals on Islip, New York to Indianapolis flight tickets
Frontier
Sep 3
ISP10:57 amIslip Long Island
10h 17m
1 stop
IND9:14 pmIndianapolis
Sep 7
IND7:33 pmIndianapolis
14h 20m
1 stop
ISP9:53 amIslip Long Island
$243
Frontier
Aug 31
ISP10:57 amIslip Long Island
7h 41m
1 stop
IND6:38 pmIndianapolis
Sep 3
IND9:59 pmIndianapolis
11h 54m
1 stop
ISP9:53 amIslip Long Island
$284
Frontier
Aug 31
ISP10:57 amIslip Long Island
7h 41m
1 stop
IND6:38 pmIndianapolis
Sep 3
IND9:59 pmIndianapolis
11h 54m
1 stop
ISP9:53 amIslip Long Island
$314

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets
Southwest
Sep 3
ISP1:15 pmIslip Long Island
9h 45m
2 stops
IND11:00 pmIndianapolis
Sep 7
IND7:20 amIndianapolis
9h 05m
2 stops
ISP4:25 pmIslip Long Island
$437
Southwest
Aug 25
ISP12:55 pmIslip Long Island
4h 00m
1 stop
IND4:55 pmIndianapolis
Aug 29
IND6:35 amIndianapolis
7h 55m
2 stops
ISP2:30 pmIslip Long Island
$482
Southwest
Aug 25
ISP6:05 amIslip Long Island
6h 15m
2 stops
IND12:20 pmIndianapolis
Aug 29
IND6:50 amIndianapolis
7h 40m
2 stops
ISP2:30 pmIslip Long Island
$487

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 August 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

Cheapest round-trip

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Thu 9/3

10:57 am-9:14 pm

1 stop10h 17m

Indianapolis

Mon 9/7

7:33 pm-9:53 am

1 stop14h 20m

$243

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Mon 8/31

10:57 am-6:38 pm

1 stop7h 41m

Indianapolis

Thu 9/3

9:59 pm-9:53 am

1 stop11h 54m

$284

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Thu 9/3

7:09 pm-11:17 am

1 stop16h 08m

Indianapolis

Mon 9/7

7:33 pm-4:47 pm

2 stops21h 14m

$298

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Mon 8/31

10:57 am-6:38 pm

1 stop7h 41m

Indianapolis

Thu 9/3

9:59 pm-9:53 am

1 stop11h 54m

$314

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Sat 8/29

10:57 am-6:38 pm

1 stop7h 41m

Indianapolis

Sun 8/30

9:59 pm-9:53 am

1 stop11h 54m

$318

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Tue 8/25

10:57 am-6:38 pm

1 stop7h 41m

Indianapolis

Sat 8/29

7:33 pm-9:53 am

1 stop14h 20m

$337

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Mon 8/24

10:57 am-6:38 pm

1 stop7h 41m

Indianapolis

Thu 8/27

9:59 pm-9:53 am

1 stop11h 54m

$352
Quickest round-trip

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Mon 8/24

10:57 am-6:38 pm

1 stop7h 41m

Indianapolis

Mon 8/31

12:15 pm-6:14 pm

1 stop5h 59m

$367

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Mon 8/24

2:28 pm-6:38 pm

2 stops28h 10m

Indianapolis

Thu 8/27

9:59 pm-6:14 pm

1 stop20h 15m

$419

IslipIndianapolis

ISP Islip Long Island - IND Indianapolis

ISPIND

Islip Long Island

Thu 9/3

1:15 pm-11:00 pm

2 stops9h 45m

Indianapolis

Mon 9/7

7:20 am-4:25 pm

2 stops9h 05m

$437

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 Saturday is the least expensive day to fly to Indianapolis. Tickets to fly out on this day can be as low as $313. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Indianapolis on Monday is $515.

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

Flying to Indianapolis from Islip, New York at noon is the least expensive time of day to depart. momondo users have found prices as low as $350 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $365 on average. Flights to Indianapolis from Islip, New York in the afternoon 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

16h 08m

Direct flights

None
The fastest flight from Islip, New York to Indianapolis takes 16h 08m
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

Frequently asked questions about flying from Islip, New York to Indianapolis

  • 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 16h 08m, 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 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.

Traveling to a place near Indianapolis?

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