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Cheap flights from Islip, New York to Indianapolis from $204

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 1/3. 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.
Multiple Airlines Logo
12:20 pm - 10:43 pmISP-IND
10h 23m1 stop
Multiple Airlines Logo
12:38 pm - 11:31 pmIND-ISP
10h 53m2 stops
$383Multiple Airlines
Find Deal
Thu, Dec 25 - Thu, Jan 1
Southwest Logo
12:55 pm - 4:40 pmISP-IND
3h 45m1 stop
Southwest Logo
6:20 pm - 10:05 pmIND-ISP
3h 45m1 stop
$387Southwest
Find Deal
Thu, Dec 25 - Thu, Jan 1
Southwest Logo
12:55 pm - 10:35 pmISP-IND
9h 40m2 stops
Southwest Logo
7:10 am - 3:20 pmIND-ISP
8h 10m2 stops
$417Southwest
Find Deal
Thu, Dec 25 - Thu, Jan 1
Multiple Airlines Logo
8:29 pm - 9:35 pmISP-IND
25h 06m1 stop
Multiple Airlines Logo
12:22 pm - 10:20 amIND-ISP
21h 58m1 stop
$750Multiple Airlines
Find Deal
Tue, Dec 9 - Sat, Dec 13

Southwest flights from Islip, New York to Indianapolis

Our best Southwest deals on Islip, New York to Indianapolis flight tickets
Southwest
Dec 25
ISP12:55 pmIslip Long Island
3h 45m
1 stop
IND4:40 pmIndianapolis
Jan 1
IND6:20 pmIndianapolis
3h 45m
1 stop
ISP10:05 pmIslip Long Island
$387
Find similar
Southwest
Dec 25
ISP12:55 pmIslip Long Island
9h 40m
2 stops
IND10:35 pmIndianapolis
Jan 1
IND7:10 amIndianapolis
8h 10m
2 stops
ISP3:20 pmIslip Long Island
$417
Find similar
Southwest
Dec 7
ISP5:50 amIslip Long Island
7h 15m
2 stops
IND1:05 pmIndianapolis
Dec 12
IND5:10 amIndianapolis
7h 40m
2 stops
ISP12:50 pmIslip Long Island
$522
Find similar

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 November 26, 2025.
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

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 12/25

12:20 pm-10:43 pm

1 stop10h 23m

Indianapolis

Thu 1/1

12:38 pm-11:31 pm

2 stops10h 53m

$383

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 12/25

12:55 pm-4:40 pm

1 stop3h 45m

Indianapolis

Thu 1/1

6:20 pm-10:05 pm

1 stop3h 45m

$387

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Thu 12/25

12:55 pm-10:35 pm

2 stops9h 40m

Indianapolis

Thu 1/1

7:10 am-3:20 pm

2 stops8h 10m

$417

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Tue 12/9

8:29 pm-9:35 pm

1 stop25h 06m

Indianapolis

Sat 12/13

12:22 pm-10:20 am

1 stop21h 58m

$750

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 1/3

5:55 pm-12:35 am

1 stop6h 40m

$204

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sat 1/3

5:30 am-11:55 am

2 stops6h 25m

$236

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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 Tuesday 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 $305.

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 $253 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 $281 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

10h 59m

Direct flights

None
The fastest flight from Islip, New York to Indianapolis takes 10h 59m
There are no direct flights from Islip, New York to Indianapolis. There are no popular flight routes from Islip, New York to Indianapolis.
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  • 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 3h 45m, 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
4,254 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
Speedway
Crawfordsville
Brownsburg
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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