$75 Cheap Flights from Atlanta (ATL) to Islip (ISP)

View $75 flight on Thu, May 21, 2026Opens in a new window

Popular airlines from Hartsfield-Jackson Atlanta International Airport (ATL) to MacArthur Airport (ISP)

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Cheap Flights from Atlanta to Islip (ATL-ISP)

Prices were available within the past 7 days and start at $75 for one-way flights and $140 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, May 3 - Mon, May 4
ATL
Atlanta
ISP
Islip
$140 Roundtrip, found 1 day ago
$140
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, May 3 from Atlanta to Islip, returning Mon, May 4, priced at $140 found 1 day ago
Frontier Airlines
Fri, May 1 - Mon, May 4
ATL
Atlanta
ISP
Islip
$150 Roundtrip, found 2 days ago
$150
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, May 1 from Atlanta to Islip, returning Mon, May 4, priced at $150 found 2 days ago
Frontier Airlines
Thu, May 14 - Sat, May 23
ATL
Atlanta
ISP
Islip
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, May 14 from Atlanta to Islip, returning Sat, May 23, priced at $151 found 1 day ago
Frontier Airlines
Fri, May 1 - Sun, May 3
ATL
Atlanta
ISP
Islip
$160 Roundtrip, found 3 hours ago
$160
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Fri, May 1 from Atlanta to Islip, returning Sun, May 3, priced at $160 found 3 hours ago
Frontier Airlines
Thu, May 21 - Sat, May 23
ATL
Atlanta
ISP
Islip
$165 Roundtrip, found 1 day ago
$165
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, May 21 from Atlanta to Islip, returning Sat, May 23, priced at $165 found 1 day ago
Frontier Airlines
Thu, May 21 - Thu, Jun 4
ATL
Atlanta
ISP
Islip
$170 Roundtrip, found 1 day ago
$170
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, May 21 from Atlanta to Islip, returning Thu, Jun 4, priced at $170 found 1 day ago
Frontier Airlines
Thu, May 14 - Sat, May 23
ATL
Atlanta
ISP
Islip
$176 Roundtrip, found 1 day ago
$176
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, May 14 from Atlanta to Islip, returning Sat, May 23, priced at $176 found 1 day ago
Frontier Airlines
Sun, Apr 26 - Thu, Apr 30
ATL
Atlanta
ISP
Islip
$180 Roundtrip, found 1 hour ago
$180
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sun, Apr 26 from Atlanta to Islip, returning Thu, Apr 30, priced at $180 found 1 hour ago
Southwest Airlines
Tue, May 5 - Wed, May 6
ATL
Atlanta
ISP
Islip
$329 Roundtrip, found 5 days ago
$329
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, May 5 from Atlanta to Islip, returning Wed, May 6, priced at $329 found 5 days ago
JetBlue Airways
Thu, May 14 - Sat, May 16
ATL
Atlanta
ISP
Islip
$340 Roundtrip, found 5 days ago
$340
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Thu, May 14 from Atlanta to Islip, returning Sat, May 16, priced at $340 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 $180
ISP
MacArthur
CheapestClosest
Average driving time to city center14 min
Flights from $180

Frequently asked questions

How much does a flight from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) cost?
You can find cheap one-way flights from $75 and cheap return flights from $140 Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) with Expedia. One-way flights usually range from $149 to $851, and return flights typically cost between $333 and $1625. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
January is the cheapest month to fly from Atlanta to Islip, with average round-trip fares around $330. This is about 25% lower than the average price throughout the year, as demand tends to drop after the holiday season. Other economical months to consider are May and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
Enter ATL to ISP and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
Frontier Airlines is one of the cheapest airlines offering connecting flights from Hartsfield-Jackson Atlanta Intl. (ATL) to MacArthur (ISP), with round-trip tickets starting from around $350. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
To find a cheap flight from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
The best time to fly from Atlanta (ATL) to Islip (ISP) is in January or October. January has an average price of about $330, making it a great value, while October is also a good option. These months are typically less crowded, allowing for a more enjoyable travel experience.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
The earliest flight from Hartsfield-Jackson Atlanta International Airport (ATL) to Islip, NY (ISP-MacArthur) typically departs at around 5:00 AM local time, operated by American Airlines and 9K. This is a seasonal service active in October, and an early departure can help you maximize your time in Islip. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
When flying from Atlanta (ATL) to Islip (ISP), the most popular departure times are from 6am to 9am. This accounts for around 44% of total traffic. Many major carriers, including Southwest Airlines, United Airlines, and American Airlines, offer flights during this window. Many travelers choose this time to ensure they arrive early and have the whole day ahead of them.
How long does it take to fly from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
Flights from ATL to ISP with one stop typically take around 6 hours 20 minutes, covering approximately 795 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
Select the "Business class" and "First class" filters when looking for ATL to ISP flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) flight with Expedia?
It's easy to earn miles on a Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Islip from Hartsfield-Jackson Atlanta Intl. (ATL)?
From Hartsfield-Jackson Atlanta Intl. (ATL), you can fly into MacArthur (ISP) to reach Islip. Some flights may connect through major hubs like Liberty Intl. (EWR), O'Hare Intl. (ORD), Washington Dulles Intl. (IAD) before reaching Islip. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) at the last minute?
Typically, booking a last minute flight from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) flight and hotel package?
Securing a Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur)?
If you booked your Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Islip, NY (ISP-MacArthur) flight within 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, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Hartsfield-Jackson Atlanta Intl.
Destination airport
MacArthur
Airlines serving
Frontier Airlines, JetBlue Airways, Southwest Airlines
Roundtrip price
$140
Distance
794 mi

Book with confidence

Atlanta to Islip Flights

The cheapest times to fly from Atlanta 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 Atlanta to Islip are during the month of May. You can find some of the cheapest flights from Atlanta to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Atlanta to Islip

Sunday is one of the best days to book for cheap flights from Atlanta 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 Atlanta 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 Atlanta to Islip in 2026. You can also book with separate airlines for your outbound and return journeys, from $75 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 Atlanta 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 Atlanta 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.

 

Atlanta to Islip Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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