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Cheap flights from Islip to Indianapolis from $79

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 to Indianapolis departing on 9/25. 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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Cheap round-trip flights

Frontier Logo
9:37 pm - 8:01 amISP-IND
10h 24m1 stop
Frontier Logo
10:23 pm - 5:42 pmIND-ISP
19h 19m1 stop
$206Frontier
Find Deal
Thu, Oct 23 - Mon, Oct 27
Frontier Logo
2:47 pm - 9:19 pmISP-IND
6h 32m1 stop
Frontier Logo
10:21 pm - 10:37 amIND-ISP
12h 16m1 stop
$223Frontier
Find Deal
Fri, Nov 7 - Sun, Nov 9
Southwest Logo
5:30 am - 11:45 amISP-IND
6h 15m2 stops
Southwest Logo
7:30 pm - 11:45 pmIND-ISP
4h 15m1 stop
$302Southwest
Find Deal
Thu, Oct 23 - Mon, Oct 27
Southwest Logo
6:00 am - 10:35 amISP-IND
4h 35m1 stop
Southwest Logo
7:30 pm - 11:45 pmIND-ISP
4h 15m1 stop
$322Southwest
Find Deal
Wed, Oct 15 - Thu, Oct 16
Multiple Airlines Logo
11:25 am - 7:58 pmISP-IND
8h 33m1 stop
Multiple Airlines Logo
12:26 pm - 11:00 amIND-ISP
22h 34m2 stops
$338Multiple Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
Southwest Logo
6:00 am - 1:50 pmISP-IND
7h 50m2 stops
Southwest Logo
7:30 pm - 11:45 pmIND-ISP
4h 15m1 stop
$341Southwest
Find Deal
Wed, Oct 15 - Thu, Oct 16
Southwest Logo
5:30 am - 11:45 amISP-IND
6h 15m2 stops
Southwest Logo
2:55 pm - 11:45 pmIND-ISP
8h 50m2 stops
$342Southwest
Find Deal
Thu, Oct 23 - Mon, Oct 27
Frontier Logo
2:47 pm - 9:19 pmISP-IND
6h 32m1 stop
Frontier Logo
8:39 pm - 10:37 amIND-ISP
13h 58m2 stops
$345Frontier
Find Deal
Fri, Nov 7 - Sun, Nov 9
Southwest Logo
6:00 am - 1:50 pmISP-IND
7h 50m2 stops
Southwest Logo
2:50 pm - 11:45 pmIND-ISP
8h 55m2 stops
$366Southwest
Find Deal
Wed, Oct 15 - Thu, Oct 16
Frontier Logo
9:37 pm - 8:01 amISP-IND
10h 24m1 stop
Frontier Logo
10:06 pm - 10:37 amIND-ISP
12h 31m1 stop
$452Frontier
Find Deal
Thu, Oct 9 - Sun, Oct 12

Frontier flights from Islip to Indianapolis

Our best Frontier deals on Islip to Indianapolis flight tickets
Frontier
Oct 23
ISP9:37 pmIslip Long Island
10h 24m
1 stop
IND8:01 amIndianapolis
Oct 27
IND10:23 pmIndianapolis
19h 19m
1 stop
ISP5:42 pmIslip Long Island
$206
Find similar
Frontier
Nov 7
ISP2:47 pmIslip Long Island
6h 32m
1 stop
IND9:19 pmIndianapolis
Nov 9
IND10:21 pmIndianapolis
12h 16m
1 stop
ISP10:37 amIslip Long Island
$223
Find similar
Frontier
Nov 7
ISP2:47 pmIslip Long Island
6h 32m
1 stop
IND9:19 pmIndianapolis
Nov 9
IND8:39 pmIndianapolis
13h 58m
2 stops
ISP10:37 amIslip Long Island
$345
Find similar

Southwest flights from Islip to Indianapolis

Our best Southwest deals on Islip to Indianapolis flight tickets
Southwest
Oct 23
ISP5:30 amIslip Long Island
6h 15m
2 stops
IND11:45 amIndianapolis
Oct 27
IND7:30 pmIndianapolis
4h 15m
1 stop
ISP11:45 pmIslip Long Island
$302
Find similar
Southwest
Oct 15
ISP6:00 amIslip Long Island
4h 35m
1 stop
IND10:35 amIndianapolis
Oct 16
IND7:30 pmIndianapolis
4h 15m
1 stop
ISP11:45 pmIslip Long Island
$322
Find similar
Southwest
Oct 15
ISP6:00 amIslip Long Island
7h 50m
2 stops
IND1:50 pmIndianapolis
Oct 16
IND7:30 pmIndianapolis
4h 15m
1 stop
ISP11:45 pmIslip Long Island
$341
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Islip 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 September 17, 2025.
Use the filters below to find and compare flights from Islip to Indianapolis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 10/23

9:37 pm-8:01 am

1 stop10h 24m

Indianapolis

Mon 10/27

10:23 pm-5:42 pm

1 stop19h 19m

$206

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 11/7

2:47 pm-9:19 pm

1 stop6h 32m

Indianapolis

Sun 11/9

10:21 pm-10:37 am

1 stop12h 16m

$223

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 10/23

5:30 am-11:45 am

2 stops6h 15m

Indianapolis

Mon 10/27

7:30 pm-11:45 pm

1 stop4h 15m

$302

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 10/15

6:00 am-10:35 am

1 stop4h 35m

Indianapolis

Thu 10/16

7:30 pm-11:45 pm

1 stop4h 15m

$322

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 9/30

11:25 am-7:58 pm

1 stop8h 33m

Indianapolis

Sat 10/4

12:26 pm-11:00 am

2 stops22h 34m

$338

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 10/15

6:00 am-1:50 pm

2 stops7h 50m

Indianapolis

Thu 10/16

7:30 pm-11:45 pm

1 stop4h 15m

$341

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 10/23

5:30 am-11:45 am

2 stops6h 15m

Indianapolis

Mon 10/27

2:55 pm-11:45 pm

2 stops8h 50m

$342

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Fri 11/7

2:47 pm-9:19 pm

1 stop6h 32m

Indianapolis

Sun 11/9

8:39 pm-10:37 am

2 stops13h 58m

$345

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Wed 10/15

6:00 am-1:50 pm

2 stops7h 50m

Indianapolis

Thu 10/16

2:50 pm-11:45 pm

2 stops8h 55m

$366

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 10/9

9:37 pm-8:01 am

1 stop10h 24m

Indianapolis

Sun 10/12

10:06 pm-10:37 am

1 stop12h 31m

$452

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Islip 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 typical price of a round-trip flight between Islip and Indianapolis?

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 $309.

What is the cheapest time of day to depart on your flight to Indianapolis?

Flying to Indianapolis from Islip at noon is the least expensive time of day to depart. momondo users have found prices as low as $254 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 $287 on average. Flights to Indianapolis from Islip in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Islip to Indianapolis

Are you open to changing your travel dates? Check out the ideal times to fly from Islip to Indianapolis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip to Indianapolis (ISP to IND) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to Indianapolis

Direct flights

None
There are no direct flights from Islip to Indianapolis. There are no popular flight routes from Islip 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 4h 35m, 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 to Indianapolis?

Best airlines flying from Islip to Indianapolis

Compare and see reviews for airlines that fly from Islip to Indianapolis with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $271Free CancellationRating
8.0
4,242 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
Anderson
Plainfield
Greenwood
Noblesville
Fishers
Carmel
Shelbyville
West Lafayette
Seymour
Franklin
Brownsburg
Crawfordsville
Speedway
Greenfield
Westfield
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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