Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Islip to Indianapolis from $143

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 12/14. 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
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Islip to Indianapolis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:37 pm - 8:01 amISP-IND
10h 24m1 stop
Frontier Logo
10:06 pm - 10:37 amIND-ISP
12h 31m1 stop
$196Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26

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 26
IND10:06 pmIndianapolis
12h 31m
1 stop
ISP10:37 amIslip Long Island
$196
Find similar
Frontier
Oct 16
ISP9:37 pmIslip Long Island
10h 24m
1 stop
IND8:01 amIndianapolis
Oct 19
IND10:06 pmIndianapolis
12h 31m
1 stop
ISP10:37 amIslip Long Island
$507
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 October 13, 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

Sun 10/26

10:06 pm-10:37 am

1 stop12h 31m

$196

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 12/14

9:09 pm-8:39 am

1 stop11h 30m

$143

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 11/30

6:00 am-2:51 pm

1 stop8h 51m

$632

IslipIndianapolis

ISP - IND

ISPIND

Islip Long Island

Sun 11/30

6:00 am-2:51 pm

1 stop8h 51m

$633

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Indianapolis from

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 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 $248. 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 10h 24m, 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
4,235 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.

An easier way to manage your Indianapolis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 11/12
Wed 11/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States