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Cheap flights from Islip, New York to Indianapolis from $255

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 4/15. 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.
Multiple Airlines Logo
10:48 am - 11:20 am
ISP
-
IND
24h 32m
1 stop
Multiple Airlines Logo
7:41 pm - 10:03 am
IND
-
ISP
14h 22m
1 stop
$309Multiple Airlines
Sun, Jun 14 - Thu, Jun 18
Multiple Airlines Logo
10:48 am - 11:19 am
ISP
-
IND
24h 31m
2 stops
Multiple Airlines Logo
7:41 pm - 10:03 am
IND
-
ISP
14h 22m
1 stop
$310Multiple Airlines
Sun, Jun 14 - Thu, Jun 18
Multiple Airlines Logo
10:48 am - 10:41 pm
ISP
-
IND
11h 53m
1 stop
Multiple Airlines Logo
6:52 pm - 1:33 pm
IND
-
ISP
18h 41m
1 stop
$332Multiple Airlines
Mon, Jun 15 - Fri, Jun 19
Multiple Airlines Logo
10:48 am - 11:21 am
ISP
-
IND
24h 33m
2 stops
Multiple Airlines Logo
6:52 pm - 1:33 pm
IND
-
ISP
18h 41m
1 stop
$333Multiple Airlines
Mon, Jun 15 - Fri, Jun 19
Multiple Airlines Logo
4:07 pm - 11:58 pm
ISP
-
IND
7h 51m
1 stop
Multiple Airlines Logo
6:00 am - 8:05 pm
IND
-
ISP
14h 05m
2 stops
$398Multiple Airlines
Thu, Apr 23 - Mon, Apr 27
Southwest Logo
3:05 pm - 7:50 pm
ISP
-
IND
4h 45m
1 stop
Southwest Logo
9:20 pm - 9:45 am
IND
-
ISP
12h 25m
1 stop
$432Southwest
Mon, Jun 15 - Fri, Jun 19
Southwest Logo
3:05 pm - 11:15 pm
ISP
-
IND
8h 10m
2 stops
Southwest Logo
4:05 pm - 11:35 pm
IND
-
ISP
7h 30m
2 stops
$437Southwest
Mon, Jun 15 - Fri, Jun 19
Southwest Logo
4:30 pm - 11:00 pm
ISP
-
IND
6h 30m
1 stop
Southwest Logo
12:30 pm - 4:30 pm
IND
-
ISP
4h 00m
1 stop
$467Southwest
Thu, Apr 23 - Mon, Apr 27
Southwest Logo
8:35 am - 12:55 pm
ISP
-
IND
4h 20m
1 stop
Southwest Logo
5:50 am - 4:35 pm
IND
-
ISP
10h 45m
2 stops
$472Southwest
Fri, Apr 24 - Tue, Apr 28
Southwest Logo
10:50 am - 4:45 pm
ISP
-
IND
5h 55m
2 stops
Southwest Logo
4:05 pm - 11:35 pm
IND
-
ISP
7h 30m
2 stops
$473Southwest
Sun, Jun 14 - Thu, Jun 18

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets
Southwest
Jun 1
ISP4:30 pmIslip Long Island
6h 30m
1 stop
IND11:00 pmIndianapolis
Jun 3
IND5:30 amIndianapolis
8h 20m
2 stops
ISP1:50 pmIslip Long Island
$338
Southwest
Jun 1
ISP4:30 pmIslip Long Island
7h 25m
2 stops
IND11:55 pmIndianapolis
Jun 3
IND5:30 amIndianapolis
8h 20m
2 stops
ISP1:50 pmIslip Long Island
$343
Southwest
Jun 15
ISP3:05 pmIslip Long Island
4h 45m
1 stop
IND7:50 pmIndianapolis
Jun 19
IND9:20 pmIndianapolis
12h 25m
1 stop
ISP9:45 amIslip Long Island
$432

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 April 10, 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

Sun 6/14

10:48 am-11:20 am

1 stop24h 32m

Indianapolis

Thu 6/18

7:41 pm-10:03 am

1 stop14h 22m

$309

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 6/14

10:48 am-11:19 am

2 stops24h 31m

Indianapolis

Thu 6/18

7:41 pm-10:03 am

1 stop14h 22m

$310

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 6/15

10:48 am-10:41 pm

1 stop11h 53m

Indianapolis

Fri 6/19

6:52 pm-1:33 pm

1 stop18h 41m

$332

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 6/15

10:48 am-11:21 am

2 stops24h 33m

Indianapolis

Fri 6/19

6:52 pm-1:33 pm

1 stop18h 41m

$333

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 4/23

4:07 pm-11:58 pm

1 stop7h 51m

Indianapolis

Mon 4/27

6:00 am-8:05 pm

2 stops14h 05m

$398

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 6/15

3:05 pm-7:50 pm

1 stop4h 45m

Indianapolis

Fri 6/19

9:20 pm-9:45 am

1 stop12h 25m

$432

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Mon 6/15

3:05 pm-11:15 pm

2 stops8h 10m

Indianapolis

Fri 6/19

4:05 pm-11:35 pm

2 stops7h 30m

$437
Quickest round-trip

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 4/23

4:30 pm-11:00 pm

1 stop6h 30m

Indianapolis

Mon 4/27

12:30 pm-4:30 pm

1 stop4h 00m

$467

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 4/24

8:35 am-12:55 pm

1 stop4h 20m

Indianapolis

Tue 4/28

5:50 am-4:35 pm

2 stops10h 45m

$472

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 6/14

10:50 am-4:45 pm

2 stops5h 55m

Indianapolis

Thu 6/18

4:05 pm-11:35 pm

2 stops7h 30m

$473

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 $249. 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 $326.

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 $259 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 $288 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

7h 51m

Direct flights

None
The fastest flight from Islip, New York to Indianapolis takes 7h 51m
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 7h 51m, 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
4,334 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
Seymour
West Lafayette
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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