$110 Cheap Flights from Indianapolis (IND) to Islip (ISP)

View $110 flight on Sat, Sep 13, 2025Opens in a new window

Popular airlines from Indianapolis Intl. Airport (IND) to MacArthur Airport (ISP)

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Cheap Flights from Indianapolis to Islip (IND-ISP)

Prices were available within the past 7 days and start at $110 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Sep 20 - Sat, Oct 4
IND
Indianapolis
ISP
Islip
$208 Roundtrip, found 11 hours ago
$208
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Sat, Sep 20 from Indianapolis to Islip, returning Sat, Oct 4, priced at $208 found 11 hours ago
Frontier Airlines
Thu, Oct 16 - Wed, Nov 5
IND
Indianapolis
ISP
Islip
$218 Roundtrip, found 11 hours ago
$218
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Thu, Oct 16 from Indianapolis to Islip, returning Wed, Nov 5, priced at $218 found 11 hours ago
Frontier Airlines
Thu, Oct 2 - Sun, Oct 19
IND
Indianapolis
ISP
Islip
$228 Roundtrip, found 11 hours ago
$228
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Indianapolis to Islip, returning Sun, Oct 19, priced at $228 found 11 hours ago
Southwest Airlines
Tue, Aug 19 - Thu, Aug 21
IND
Indianapolis
ISP
Islip
$233 Roundtrip, found 21 hours ago
$233
Roundtrip
found 21 hours ago
Select Southwest Airlines flight, departing Tue, Aug 19 from Indianapolis to Islip, returning Thu, Aug 21, priced at $233 found 21 hours ago
Southwest Airlines
Sat, Sep 27 - Sat, Oct 4
IND
Indianapolis
ISP
Islip
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Sat, Sep 27 from Indianapolis to Islip, returning Sat, Oct 4, priced at $237 found 1 day ago
Southwest Airlines
Thu, Oct 30 - Mon, Nov 3
IND
Indianapolis
ISP
Islip
$238 Roundtrip, found 6 days ago
$238
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Oct 30 from Indianapolis to Islip, returning Mon, Nov 3, priced at $238 found 6 days ago
Southwest Airlines
Wed, Aug 20 - Sat, Aug 23
IND
Indianapolis
ISP
Islip
$242 Roundtrip, found 21 hours ago
$242
Roundtrip
found 21 hours ago
Select Southwest Airlines flight, departing Wed, Aug 20 from Indianapolis to Islip, returning Sat, Aug 23, priced at $242 found 21 hours ago
Southwest Airlines
Wed, Aug 20 - Sat, Aug 23
IND
Indianapolis
ISP
Islip
$247 Roundtrip, found 21 hours ago
$247
Roundtrip
found 21 hours ago
Select Southwest Airlines flight, departing Wed, Aug 20 from Indianapolis to Islip, returning Sat, Aug 23, priced at $247 found 21 hours ago
Frontier Airlines
Sun, Oct 12 - Wed, Oct 29
IND
Indianapolis
ISP
Islip
$248 Roundtrip, found 11 hours ago
$248
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Sun, Oct 12 from Indianapolis to Islip, returning Wed, Oct 29, priced at $248 found 11 hours ago
Southwest Airlines
Fri, Nov 7 - Mon, Nov 10
IND
Indianapolis
ISP
Islip
$255 Roundtrip, found 5 days ago
$255
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Fri, Nov 7 from Indianapolis to Islip, returning Mon, Nov 10, priced at $255 found 5 days ago

Alternative airports near Islip

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to MacArthur ISP. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $1,220
ISP
MacArthur
CheapestClosest
Average driving time to city center14 min
Flights from $1,220
Flights from Indianapolis (IND) to Islip (ISP)
Origin airport
Indianapolis Intl.
Destination airport
MacArthur
Airlines serving
Frontier Airlines, Southwest Airlines
Roundtrip price
$208
Distance
699 mi

Indianapolis to Islip Flights

The cheapest times to fly from Indianapolis to Islip

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Indianapolis to Islip are during the month of September. You can find some of the cheapest flights from Indianapolis to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Indianapolis to Islip

Sunday is one of the best days to book for cheap flights from Indianapolis to Islip: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Indianapolis to Islip

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Indianapolis to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $110 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Indianapolis to Islip flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Indianapolis to Islip airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Indianapolis Intl. Airport (IND) to MacArthur Airport (ISP) cost?
Discover the latest flight deals from IND to ISP by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IND to ISP?
The cheapest flights from IND to ISP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IND to ISP?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IND to ISP. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Indianapolis Intl. Airport (IND) to MacArthur Airport (ISP)?
There aren't any daily direct flights from Indianapolis Intl. Airport (IND) to MacArthur Airport (ISP). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from IND to ISP?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Indianapolis Intl. Airport (IND) to MacArthur Airport (ISP)?
To land at MacArthur Airport (ISP) on schedule, pick a flight that leaves from Indianapolis Intl. Airport (IND) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Islip from Indianapolis Intl. Airport (IND)?
Board a direct flight from Indianapolis Intl. Airport (IND) to Islip and arrive at LaGuardia Airport (LGA). Another arrival point to the city is John F. Kennedy Intl. Airport (JFK).
Is it cheaper to buy a plane ticket from Indianapolis Intl. Airport (IND) to MacArthur Airport (ISP) last-minute?
Waiting until right before your break to book a flight from IND to ISP generally means paying more. Although you may find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of scoring a bargain.
Is it cheaper to book an IND to ISP flight and hotel package?
Compared with arranging hotels and flights separately, booking an IND to ISP flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the hassle out of travel planning. Simply pick your flights and choose from our wide range of stays, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Indianapolis Intl. Airport (IND) to MacArthur Airport (ISP)?
If you booked your IND to ISP flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.