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Cheap flights from Islip, New York to Indianapolis from $152

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 5/7. 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.
Southwest Logo
4:30 pm - 11:00 pm
ISP
-
IND
6h 30m
1 stop
Southwest Logo
4:35 pm - 8:25 pm
IND
-
ISP
3h 50m
1 stop
$310Southwest
Lu, apr 20 - Lu, apr 27
Southwest Logo
12:30 pm - 10:00 pm
ISP
-
IND
9h 30m
2 stops
Southwest Logo
4:35 pm - 8:25 pm
IND
-
ISP
3h 50m
1 stop
$316Southwest
Lu, apr 20 - Lu, apr 27
Southwest Logo
5:30 am - 12:55 pm
ISP
-
IND
7h 25m
1 stop
Southwest Logo
5:10 am - 11:35 am
IND
-
ISP
6h 25m
1 stop
$347Southwest
Sâ, apr 18 - Sâ, apr 25
Southwest Logo
5:30 am - 12:55 pm
ISP
-
IND
7h 25m
1 stop
Southwest Logo
2:55 pm - 11:20 pm
IND
-
ISP
8h 25m
2 stops
$352Southwest
Sâ, apr 18 - Sâ, apr 25
Southwest Logo
5:25 pm - 12:20 am
ISP
-
IND
6h 55m
1 stop
Southwest Logo
5:10 am - 11:35 am
IND
-
ISP
6h 25m
1 stop
$355Southwest
Du, apr 19 - Sâ, apr 25
Southwest Logo
5:25 pm - 12:20 am
ISP
-
IND
6h 55m
1 stop
Southwest Logo
2:55 pm - 11:20 pm
IND
-
ISP
8h 25m
2 stops
$360Southwest
Du, apr 19 - Sâ, apr 25
Southwest Logo
3:15 pm - 9:35 pm
ISP
-
IND
6h 20m
1 stop
Southwest Logo
5:50 am - 12:10 pm
IND
-
ISP
6h 20m
1 stop
$362Southwest
Sâ, aug 22 - Mi, aug 26
Southwest Logo
9:20 am - 8:20 pm
ISP
-
IND
11h 00m
2 stops
Southwest Logo
2:55 pm - 11:20 pm
IND
-
ISP
8h 25m
2 stops
$363Southwest
Sâ, apr 18 - Sâ, apr 25
Southwest Logo
5:30 am - 1:25 pm
ISP
-
IND
7h 55m
2 stops
Southwest Logo
5:50 am - 12:10 pm
IND
-
ISP
6h 20m
1 stop
$367Southwest
Sâ, aug 22 - Mi, aug 26
Southwest Logo
12:35 pm - 6:55 pm
ISP
-
IND
6h 20m
1 stop
Southwest Logo
9:10 am - 12:35 pm
IND
-
ISP
3h 25m
1 stop
$382Southwest
Vi, sept 18 - Lu, sept 21

Frontier flights from Islip, New York to Indianapolis

Our best Frontier deals on Islip, New York to Indianapolis flight tickets
Frontier
Jun 11
ISP10:48 amIslip Long Island
8h 08m
1 stop
IND6:56 pmIndianapolis
Jun 16
IND8:46 pmIndianapolis
37h 17m
2 stops
ISP10:03 amIslip Long Island
$381
Frontier
Apr 4
ISP11:15 amIslip Long Island
23h 02m
1 stop
IND10:17 amIndianapolis
Apr 5
IND7:09 pmIndianapolis
14h 19m
1 stop
ISP9:28 amIslip Long Island
$445
Frontier
Apr 8
ISP5:28 pmIslip Long Island
24h 57m
1 stop
IND6:25 pmIndianapolis
Apr 12
IND7:09 pmIndianapolis
23h 40m
1 stop
ISP6:49 pmIslip Long Island
$452

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets
Southwest
Apr 29
ISP6:30 amIslip Long Island
6h 15m
1 stop
IND12:45 pmIndianapolis
May 4
IND2:25 pmIndianapolis
6h 00m
1 stop
ISP8:25 pmIslip Long Island
$263
Southwest
Apr 29
ISP2:30 pmIslip Long Island
9h 15m
2 stops
IND11:45 pmIndianapolis
May 4
IND2:25 pmIndianapolis
6h 00m
1 stop
ISP8:25 pmIslip Long Island
$268
Southwest
Apr 20
ISP4:30 pmIslip Long Island
6h 30m
1 stop
IND11:00 pmIndianapolis
Apr 27
IND4:35 pmIndianapolis
3h 50m
1 stop
ISP8:25 pmIslip Long Island
$310

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 martie 24, 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

Lu 4/20

4:30 pm-11:00 pm

1 stop6h 30m

Indianapolis

Lu 4/27

4:35 pm-8:25 pm

1 stop3h 50m

$310

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Lu 4/20

12:30 pm-10:00 pm

2 stops9h 30m

Indianapolis

Lu 4/27

4:35 pm-8:25 pm

1 stop3h 50m

$316

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sâ 4/18

5:30 am-12:55 pm

1 stop7h 25m

Indianapolis

Sâ 4/25

5:10 am-11:35 am

1 stop6h 25m

$347

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sâ 4/18

5:30 am-12:55 pm

1 stop7h 25m

Indianapolis

Sâ 4/25

2:55 pm-11:20 pm

2 stops8h 25m

$352

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Du 4/19

5:25 pm-12:20 am

1 stop6h 55m

Indianapolis

Sâ 4/25

5:10 am-11:35 am

1 stop6h 25m

$355

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Du 4/19

5:25 pm-12:20 am

1 stop6h 55m

Indianapolis

Sâ 4/25

2:55 pm-11:20 pm

2 stops8h 25m

$360

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sâ 8/22

3:15 pm-9:35 pm

1 stop6h 20m

Indianapolis

Mi 8/26

5:50 am-12:10 pm

1 stop6h 20m

$362

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sâ 4/18

9:20 am-8:20 pm

2 stops11h 00m

Indianapolis

Sâ 4/25

2:55 pm-11:20 pm

2 stops8h 25m

$363

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sâ 8/22

5:30 am-1:25 pm

2 stops7h 55m

Indianapolis

Mi 8/26

5:50 am-12:10 pm

1 stop6h 20m

$367
Quickest round-trip

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Vi 9/18

12:35 pm-6:55 pm

1 stop6h 20m

Indianapolis

Lu 9/21

9:10 am-12:35 pm

1 stop3h 25m

$382

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 $247. 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 $322.

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 $258 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 $283 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 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
4,331 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
Speedway
West Lafayette
Seymour
Brownsburg
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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