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Cheap flights from Islip, New York to Indianapolis from $135

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 6/8. 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
11:00 am - 11:42 am
ISP
-
IND
24h 42m
1 stop
Frontier Logo
7:46 pm - 8:57 pm
IND
-
ISP
25h 11m
1 stop
$282Frontier
Fri, Jun 5 - Fri, Jun 12
Frontier Logo
11:00 am - 1:05 pm
ISP
-
IND
26h 05m
1 stop
Frontier Logo
7:08 pm - 8:57 pm
IND
-
ISP
25h 49m
1 stop
$306Frontier
Sun, Jun 7 - Tue, Jun 9
Frontier Logo
10:48 am - 6:57 pm
ISP
-
IND
8h 09m
1 stop
Frontier Logo
11:25 am - 10:03 am
IND
-
ISP
22h 38m
1 stop
$326Frontier
Sat, Jul 11 - Sat, Jul 18
Multiple Airlines Logo
2:28 pm - 10:59 pm
ISP
-
IND
32h 31m
2 stops
Multiple Airlines Logo
6:52 pm - 1:33 pm
IND
-
ISP
18h 41m
1 stop
$348Multiple Airlines
Fri, Jun 5 - Fri, Jun 12
Multiple Airlines Logo
11:57 am - 9:28 am
ISP
-
IND
21h 31m
2 stops
Multiple Airlines Logo
5:41 pm - 10:03 am
IND
-
ISP
16h 22m
1 stop
$365Multiple Airlines
Sat, Jul 11 - Sat, Jul 18
Southwest Logo
4:40 pm - 11:10 pm
ISP
-
IND
6h 30m
1 stop
Southwest Logo
5:15 am - 11:45 am
IND
-
ISP
6h 30m
1 stop
$382Southwest
Tue, Jul 7 - Sun, Jul 12
Southwest Logo
4:40 pm - 11:10 pm
ISP
-
IND
6h 30m
1 stop
Southwest Logo
6:30 am - 2:55 pm
IND
-
ISP
8h 25m
2 stops
$387Southwest
Tue, Jul 7 - Sun, Jul 12
Southwest Logo
9:05 am - 7:00 pm
ISP
-
IND
9h 55m
2 stops
Southwest Logo
6:00 pm - 11:35 pm
IND
-
ISP
5h 35m
1 stop
$392Southwest
Sat, Jul 4 - Sun, Jul 5
Frontier Logo
10:48 am - 7:01 pm
ISP
-
IND
8h 13m
1 stop
Frontier Logo
7:42 pm - 9:58 am
IND
-
ISP
14h 16m
1 stop
$398Frontier
Sat, Jul 4 - Sun, Jul 5
Southwest Logo
4:05 pm - 10:20 pm
ISP
-
IND
6h 15m
1 stop
Southwest Logo
9:10 am - 12:35 pm
IND
-
ISP
3h 25m
1 stop
$402Southwest
Fri, Sep 18 - Mon, Sep 21

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets
Southwest
Jul 7
ISP4:40 pmIslip Long Island
6h 30m
1 stop
IND11:10 pmIndianapolis
Jul 12
IND5:15 amIndianapolis
6h 30m
1 stop
ISP11:45 amIslip Long Island
$382
Southwest
Jul 7
ISP4:40 pmIslip Long Island
6h 30m
1 stop
IND11:10 pmIndianapolis
Jul 12
IND6:30 amIndianapolis
8h 25m
2 stops
ISP2:55 pmIslip Long Island
$387
Southwest
Jul 4
ISP9:05 amIslip Long Island
9h 55m
2 stops
IND7:00 pmIndianapolis
Jul 5
IND6:00 pmIndianapolis
5h 35m
1 stop
ISP11:35 pmIslip Long Island
$392

Frontier flights from Islip, New York to Indianapolis

Our best Frontier deals on Islip, New York to Indianapolis flight tickets
Frontier
Jun 5
ISP11:00 amIslip Long Island
24h 42m
1 stop
IND11:42 amIndianapolis
Jun 12
IND7:46 pmIndianapolis
25h 11m
1 stop
ISP8:57 pmIslip Long Island
$282
Frontier
Jun 7
ISP11:00 amIslip Long Island
26h 05m
1 stop
IND1:05 pmIndianapolis
Jun 9
IND7:08 pmIndianapolis
25h 49m
1 stop
ISP8:57 pmIslip Long Island
$306
Frontier
Jul 11
ISP10:48 amIslip Long Island
8h 09m
1 stop
IND6:57 pmIndianapolis
Jul 18
IND11:25 amIndianapolis
22h 38m
1 stop
ISP10:03 amIslip Long Island
$326

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 May 8, 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 - IND

ISPIND

Islip Long Island

Fri 6/5

11:00 am-11:42 am

1 stop24h 42m

Indianapolis

Fri 6/12

7:46 pm-8:57 pm

1 stop25h 11m

$282

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 6/7

11:00 am-1:05 pm

1 stop26h 05m

Indianapolis

Tue 6/9

7:08 pm-8:57 pm

1 stop25h 49m

$306

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 7/11

10:48 am-6:57 pm

1 stop8h 09m

Indianapolis

Sat 7/18

11:25 am-10:03 am

1 stop22h 38m

$326

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 6/5

2:28 pm-10:59 pm

2 stops32h 31m

Indianapolis

Fri 6/12

6:52 pm-1:33 pm

1 stop18h 41m

$348

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 7/11

11:57 am-9:28 am

2 stops21h 31m

Indianapolis

Sat 7/18

5:41 pm-10:03 am

1 stop16h 22m

$365

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 7/7

4:40 pm-11:10 pm

1 stop6h 30m

Indianapolis

Sun 7/12

5:15 am-11:45 am

1 stop6h 30m

$382

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 7/7

4:40 pm-11:10 pm

1 stop6h 30m

Indianapolis

Sun 7/12

6:30 am-2:55 pm

2 stops8h 25m

$387

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 7/4

9:05 am-7:00 pm

2 stops9h 55m

Indianapolis

Sun 7/5

6:00 pm-11:35 pm

1 stop5h 35m

$392

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 7/4

10:48 am-7:01 pm

1 stop8h 13m

Indianapolis

Sun 7/5

7:42 pm-9:58 am

1 stop14h 16m

$398
Quickest round-trip

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 9/18

4:05 pm-10:20 pm

1 stop6h 15m

Indianapolis

Mon 9/21

9:10 am-12:35 pm

1 stop3h 25m

$402

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 $256. 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 $351.

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 $261 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $300 on average. Flights to Indianapolis from Islip, New York in the morning 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 10m

Direct flights

None
The fastest flight from Islip, New York to Indianapolis takes 6h 10m
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 6h 10m, 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
Plainfield
Anderson
Greenwood
Noblesville
Carmel
Fishers
Franklin
Shelbyville
Speedway
West Lafayette
Westfield
Seymour
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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