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Cheap flights from Islip, New York to Indianapolis from $126

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 4/17. 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

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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 - 7:38 am
ISP
-
IND
15h 31m
1 stop
Frontier Logo
12:07 pm - 9:33 am
IND
-
ISP
21h 26m
1 stop
$202Frontier
Thu, Apr 16 - Wed, Apr 22
Southwest Logo
4:30 pm - 11:00 pm
ISP
-
IND
6h 30m
1 stop
Southwest Logo
5:30 am - 1:50 pm
IND
-
ISP
8h 20m
2 stops
$320Southwest
Thu, Apr 16 - Wed, Apr 22
Southwest Logo
4:30 pm - 11:55 pm
ISP
-
IND
7h 25m
2 stops
Southwest Logo
5:30 am - 1:50 pm
IND
-
ISP
8h 20m
2 stops
$355Southwest
Thu, Apr 16 - Wed, Apr 22
Frontier Logo
1:22 pm - 8:39 am
ISP
-
IND
19h 17m
1 stop
Frontier Logo
9:07 am - 4:13 pm
IND
-
ISP
7h 06m
1 stop
$405Frontier
Mon, Mar 23 - Thu, Mar 26
Multiple Airlines Logo
2:31 pm - 8:39 am
ISP
-
IND
18h 08m
2 stops
Multiple Airlines Logo
9:07 am - 4:13 pm
IND
-
ISP
7h 06m
1 stop
$413Multiple Airlines
Mon, Mar 23 - Thu, Mar 26
Southwest Logo
6:10 am - 12:35 pm
ISP
-
IND
6h 25m
1 stop
Southwest Logo
8:45 am - 5:20 pm
IND
-
ISP
8h 35m
1 stop
$447Southwest
Tue, Mar 24 - Sat, Mar 28
Southwest Logo
12:20 pm - 10:05 pm
ISP
-
IND
9h 45m
2 stops
Southwest Logo
4:45 pm - 11:25 pm
IND
-
ISP
6h 40m
1 stop
$452Southwest
Tue, Mar 24 - Sat, Mar 28
Southwest Logo
5:45 am - 4:20 pm
ISP
-
IND
10h 35m
2 stops
Southwest Logo
3:00 pm - 11:35 pm
IND
-
ISP
8h 35m
2 stops
$457Southwest
Tue, Mar 24 - Sat, Mar 28
Multiple Airlines Logo
2:31 pm - 11:15 pm
ISP
-
IND
8h 44m
2 stops
Multiple Airlines Logo
5:08 pm - 7:59 pm
IND
-
ISP
26h 51m
1 stop
$463Multiple Airlines
Fri, Mar 27 - Tue, Mar 31
Multiple Airlines Logo
11:50 am - 8:12 am
ISP
-
IND
20h 22m
2 stops
Multiple Airlines Logo
6:44 pm - 3:10 pm
IND
-
ISP
20h 26m
1 stop
$467Multiple Airlines
Sat, Mar 28 - Wed, Apr 1

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets
Southwest
Apr 16
ISP4:30 pmIslip Long Island
6h 30m
1 stop
IND11:00 pmIndianapolis
Apr 22
IND5:30 amIndianapolis
8h 20m
2 stops
ISP1:50 pmIslip Long Island
$320
Southwest
Apr 16
ISP4:30 pmIslip Long Island
7h 25m
2 stops
IND11:55 pmIndianapolis
Apr 22
IND5:30 amIndianapolis
8h 20m
2 stops
ISP1:50 pmIslip Long Island
$355
Southwest
Mar 24
ISP6:10 amIslip Long Island
6h 25m
1 stop
IND12:35 pmIndianapolis
Mar 28
IND8:45 amIndianapolis
8h 35m
1 stop
ISP5:20 pmIslip Long Island
$447

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
15h 31m
1 stop
IND7:38 amIndianapolis
Apr 22
IND12:07 pmIndianapolis
21h 26m
1 stop
ISP9:33 amIslip Long Island
$202
Frontier
Mar 23
ISP1:22 pmIslip Long Island
19h 17m
1 stop
IND8:39 amIndianapolis
Mar 26
IND9:07 amIndianapolis
7h 06m
1 stop
ISP4:13 pmIslip Long Island
$405
Frontier
Apr 4
ISP11:15 amIslip Long Island
7h 09m
1 stop
IND6:24 pmIndianapolis
Apr 7
IND10:42 amIndianapolis
6h 16m
1 stop
ISP4:58 pmIslip Long Island
$859

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 March 13, 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

Thu 4/16

4:07 pm-7:38 am

1 stop15h 31m

Indianapolis

Wed 4/22

12:07 pm-9:33 am

1 stop21h 26m

$202
Quickest round-trip

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 4/16

4:30 pm-11:00 pm

1 stop6h 30m

Indianapolis

Wed 4/22

5:30 am-1:50 pm

2 stops8h 20m

$320

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 4/16

4:30 pm-11:55 pm

2 stops7h 25m

Indianapolis

Wed 4/22

5:30 am-1:50 pm

2 stops8h 20m

$355

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 3/23

1:22 pm-8:39 am

1 stop19h 17m

Indianapolis

Thu 3/26

9:07 am-4:13 pm

1 stop7h 06m

$405

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 3/23

2:31 pm-8:39 am

2 stops18h 08m

Indianapolis

Thu 3/26

9:07 am-4:13 pm

1 stop7h 06m

$413

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 3/24

6:10 am-12:35 pm

1 stop6h 25m

Indianapolis

Sat 3/28

8:45 am-5:20 pm

1 stop8h 35m

$447

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 3/24

12:20 pm-10:05 pm

2 stops9h 45m

Indianapolis

Sat 3/28

4:45 pm-11:25 pm

1 stop6h 40m

$452

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 3/24

5:45 am-4:20 pm

2 stops10h 35m

Indianapolis

Sat 3/28

3:00 pm-11:35 pm

2 stops8h 35m

$457

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 3/27

2:31 pm-11:15 pm

2 stops8h 44m

Indianapolis

Tue 3/31

5:08 pm-7:59 pm

1 stop26h 51m

$463

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 3/28

11:50 am-8:12 am

2 stops20h 22m

Indianapolis

Wed 4/1

6:44 pm-3:10 pm

1 stop20h 26m

$467

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 $243. 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 $317.

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 $257 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $282 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 20m

Direct flights

None
The fastest flight from Islip, New York to Indianapolis takes 6h 20m
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 20m, 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
4,318 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
Carmel
Fishers
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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