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Cheap flights from Islip, New York to Indianapolis from $127

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 6/9. 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
11:00 am - 6:34 pm
ISP
-
IND
7h 34m
1 stop
Frontier Logo
7:08 pm - 8:57 pm
IND
-
ISP
25h 49m
1 stop
$230Frontier
Mon, Jun 8 - Tue, Jun 9
Frontier Logo
4:13 pm - 5:46 pm
ISP
-
IND
25h 33m
1 stop
Frontier Logo
6:41 pm - 9:33 am
IND
-
ISP
14h 52m
1 stop
$325Frontier
Wed, Oct 14 - Sun, Oct 18
Southwest Logo
3:05 pm - 7:50 pm
ISP
-
IND
4h 45m
1 stop
Southwest Logo
5:05 am - 1:45 pm
IND
-
ISP
8h 40m
2 stops
$378Southwest
Mon, Jun 8 - Tue, Jun 9
Frontier Logo
11:00 am - 6:39 pm
ISP
-
IND
7h 39m
1 stop
Frontier Logo
8:39 pm - 10:05 am
IND
-
ISP
13h 26m
2 stops
$384Frontier
Mon, Jun 1 - Thu, Jun 4
Southwest Logo
5:35 pm - 11:40 pm
ISP
-
IND
6h 05m
1 stop
Southwest Logo
5:40 am - 11:50 am
IND
-
ISP
6h 10m
1 stop
$387Southwest
Sat, Jun 20 - Mon, Jun 29
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
$391Frontier
Sun, Jun 7 - Tue, Jun 9
Southwest Logo
5:35 pm - 11:40 pm
ISP
-
IND
6h 05m
1 stop
Southwest Logo
4:05 pm - 11:35 pm
IND
-
ISP
7h 30m
2 stops
$392Southwest
Sat, Jun 20 - Mon, Jun 29
Southwest Logo
10:10 am - 7:30 pm
ISP
-
IND
9h 20m
2 stops
Southwest Logo
10:10 am - 5:10 pm
IND
-
ISP
7h 00m
1 stop
$400Southwest
Wed, Oct 14 - Sun, Oct 18
Frontier Logo
6:02 pm - 1:01 pm
ISP
-
IND
18h 59m
1 stop
Frontier Logo
8:39 pm - 10:05 am
IND
-
ISP
13h 26m
2 stops
$405Frontier
Tue, Jun 2 - Sat, Jun 6
Frontier Logo
6:02 pm - 1:01 pm
ISP
-
IND
18h 59m
1 stop
Frontier Logo
12:37 pm - 10:05 am
IND
-
ISP
21h 28m
1 stop
$406Frontier
Tue, Jun 2 - Sat, Jun 6

Frontier flights from Islip, New York to Indianapolis

Our best Frontier deals on Islip, New York to Indianapolis flight tickets
Frontier
Jun 8
ISP11:00 amIslip Long Island
7h 34m
1 stop
IND6:34 pmIndianapolis
Jun 9
IND7:08 pmIndianapolis
25h 49m
1 stop
ISP8:57 pmIslip Long Island
$230
Frontier
Oct 14
ISP4:13 pmIslip Long Island
25h 33m
1 stop
IND5:46 pmIndianapolis
Oct 18
IND6:41 pmIndianapolis
14h 52m
1 stop
ISP9:33 amIslip Long Island
$325
Frontier
Jun 1
ISP11:00 amIslip Long Island
7h 39m
1 stop
IND6:39 pmIndianapolis
Jun 4
IND8:39 pmIndianapolis
13h 26m
2 stops
ISP10:05 amIslip Long Island
$384

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets
Southwest
Jun 8
ISP3:05 pmIslip Long Island
4h 45m
1 stop
IND7:50 pmIndianapolis
Jun 9
IND5:05 amIndianapolis
8h 40m
2 stops
ISP1:45 pmIslip Long Island
$378
Southwest
Jun 20
ISP5:35 pmIslip Long Island
6h 05m
1 stop
IND11:40 pmIndianapolis
Jun 29
IND5:40 amIndianapolis
6h 10m
1 stop
ISP11:50 amIslip Long Island
$387
Southwest
Jun 20
ISP5:35 pmIslip Long Island
6h 05m
1 stop
IND11:40 pmIndianapolis
Jun 29
IND4:05 pmIndianapolis
7h 30m
2 stops
ISP11:35 pmIslip Long Island
$392

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 22, 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

Mon 6/8

11:00 am-6:34 pm

1 stop7h 34m

Indianapolis

Tue 6/9

7:08 pm-8:57 pm

1 stop25h 49m

$230

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 10/14

4:13 pm-5:46 pm

1 stop25h 33m

Indianapolis

Sun 10/18

6:41 pm-9:33 am

1 stop14h 52m

$325

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 6/8

3:05 pm-7:50 pm

1 stop4h 45m

Indianapolis

Tue 6/9

5:05 am-1:45 pm

2 stops8h 40m

$378

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 6/1

11:00 am-6:39 pm

1 stop7h 39m

Indianapolis

Thu 6/4

8:39 pm-10:05 am

2 stops13h 26m

$384
Quickest round-trip

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 6/20

5:35 pm-11:40 pm

1 stop6h 05m

Indianapolis

Mon 6/29

5:40 am-11:50 am

1 stop6h 10m

$387

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

$391

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 6/20

5:35 pm-11:40 pm

1 stop6h 05m

Indianapolis

Mon 6/29

4:05 pm-11:35 pm

2 stops7h 30m

$392

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 10/14

10:10 am-7:30 pm

2 stops9h 20m

Indianapolis

Sun 10/18

10:10 am-5:10 pm

1 stop7h 00m

$400

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 6/2

6:02 pm-1:01 pm

1 stop18h 59m

Indianapolis

Sat 6/6

8:39 pm-10:05 am

2 stops13h 26m

$405

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 6/2

6:02 pm-1:01 pm

1 stop18h 59m

Indianapolis

Sat 6/6

12:37 pm-10:05 am

1 stop21h 28m

$406

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 $262. 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 $375.

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 $264 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 $308 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 30m

Direct flights

None
The fastest flight from Islip, New York to Indianapolis takes 6h 30m
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 30m, 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
Franklin
Shelbyville
Fishers
Speedway
Seymour
West Lafayette
Brownsburg
Westfield
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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