ATL - ISP

$64 Find Cheap Flights from Atlanta to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Atlanta to Islip departing on 2/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Atlanta to Islip, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Atlanta to Islip, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$129
Overall average: $336
Frontier
Tue 2/24Sat 2/28
ATL - ISP • 1 stop
Cheapest one-way
$64
Frontier
Sat 2/28
ATL - ISP • 1 stop
When to travel
September
Cheapest • 55% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Islip!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Atlanta to Islip (ATL-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Atlanta to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Atlanta to Islip

Tue, Feb 24 - Sat, Feb 28
Frontier Logo
10:51 pm - 8:40 am
ATL
-
ISP
9h 49m1 stop
Frontier Logo
12:01 pm - 7:04 am
ISP
-
ATL
19h 03m1 stop
$129Frontier
Fri, Feb 6 - Sun, Feb 8
Frontier Logo
6:45 am - 6:38 pm
ATL
-
ISP
11h 53m1 stop
Frontier Logo
7:53 pm - 7:34 am
ISP
-
ATL
11h 41m1 stop
$133Frontier
Tue, Feb 24 - Thu, Feb 26
Frontier Logo
7:45 am - 8:40 am
ATL
-
ISP
24h 55m1 stop
Frontier Logo
3:34 pm - 10:03 am
ISP
-
ATL
18h 29m1 stop
$140Frontier
Fri, Feb 6 - Sun, Feb 8
Multiple Airlines Logo
10:50 pm - 11:10 am
ATL
-
ISP
12h 20m2 stops
Multiple Airlines Logo
7:53 pm - 7:34 am
ISP
-
ATL
11h 41m1 stop
$142Multiple Airlines
Sat, Apr 4 - Tue, Apr 7
Frontier Logo
10:45 pm - 8:41 am
ATL
-
ISP
9h 56m1 stop
Frontier Logo
8:19 pm - 7:02 am
ISP
-
ATL
10h 43m1 stop
$150Frontier
Sat, Apr 4 - Tue, Apr 7
Frontier Logo
4:02 pm - 8:41 am
ATL
-
ISP
16h 39m1 stop
Frontier Logo
8:19 pm - 9:45 pm
ISP
-
ATL
25h 26m1 stop
$151Frontier
Sat, Feb 7 - Sun, Feb 8
Frontier Logo
7:56 pm - 8:40 am
ATL
-
ISP
12h 44m1 stop
Frontier Logo
7:53 pm - 8:12 pm
ISP
-
ATL
24h 19m1 stop
$160Frontier
Tue, Mar 3 - Thu, Mar 5
Frontier Logo
7:45 am - 8:40 am
ATL
-
ISP
24h 55m1 stop
Frontier Logo
3:34 pm - 6:59 am
ISP
-
ATL
15h 25m1 stop
$164Frontier
Sat, Apr 4 - Sun, Apr 12
Frontier Logo
10:45 pm - 8:41 am
ATL
-
ISP
9h 56m1 stop
Frontier Logo
9:41 am - 9:45 pm
ISP
-
ATL
12h 04m1 stop
$170Frontier
Thu, Feb 5 - Sun, Feb 8
Frontier Logo
3:26 pm - 6:38 pm
ATL
-
ISP
27h 12m1 stop
Frontier Logo
9:25 am - 9:46 pm
ISP
-
ATL
12h 21m1 stop
$171Frontier
Booking Insights

KAYAK's insights & trends for Atlanta to Islip flights

Get data-powered insights and trends into flights from Atlanta to Islip to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Atlanta to Islip?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Atlanta to Islip, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Atlanta to Islip is September, where tickets cost $144 (return) on average. On the other hand, the most expensive months are January and April, where the average cost of round-trip tickets is $572 and $496 respectively.

Good to know

Low seasonDecember
Cheapest flight$64
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Atlanta to Islip

When to book flights from Atlanta to Islip

Are your dates flexible? Find out the best times to travel from Atlanta to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Atlanta to Islip

  • Can I travel with Southwest for my flight from Atlanta to Islip with a child?

    Southwest Airlines offers several services to make travel with children more convenient and enjoyable. When traveling with a child on Southwest Airlines, they have a family-friendly policy that allows families to board after the "A" group of boarding positions. For no additional fee, you may carry one child aged 14 days or older and younger than two (2) years old who is not taking a seat.

  • How does JetBlue achieve carbon neutrality?

    In 2020, JetBlue pioneered the practice of voluntarily offsetting emissions of greenhouse gases from all domestic flights, making it the first airline in the United States to do so. The corporation has also switched to Sustainable aviation fuels (SAF), the fastest way to cut carbon emissions. By 2035, the airline hopes to have effectively halved its per-seat emissions.

  • Can I sleep at Long Island Mac Arthur Airport (ISP) if I arrive late?

    Suppose you arrive late at ISP after your flight from Atlanta; consider staying at one of the on-site airport hotels. Some options include Courtyard by Marriott Long Island MacArthur Airport, Hilton Garden Inn Islip/MacArthur Airport, and Residence Inn Long Island Hauppauge/Islandia. These hotels provide convenient accommodations with amenities such as free airport shuttles, on-site dining, and comfortable rooms for travelers.

  • How do I leave Long Island Mac Arthur Airport (ISP)?

    After a flight from Atlanta to Islip, passengers who arrive at Long Island Mac Arthur Airport (ISP) can get out of the airport using various transport options that vary from each other in terms of fare tickets and time taken. Without a car, the bus, which takes 10 minutes and costs $3, is the best method to get from Islip Airport (ISP) to Ronkonkoma (Station). The bus runs every two hours from LI Macarthur Airport and travels 10 minutes, transfers included, to Ronkonkoma LIRR.

  • What is the cheapest flight from Atlanta to Islip?

    In the last 3 days, the lowest price for a flight from Atlanta to Islip was $64 for a one-way ticket and $129 for a round-trip.

  • Do I need a passport to fly between Atlanta and Islip?

    A passport is not required to fly from Atlanta to Islip.

  • Which airports will I be using when flying from Atlanta to Islip?

    Atlanta and Islip are both served by 1 main airport. You will leave Atlanta from Atlanta Hartsfield-Jackson and will be arriving at Islip Long Island.

  • Which airlines offer Wi-Fi service onboard planes from Atlanta to Islip?

    Only JetBlue offers inflight Wi-Fi service on the Atlanta to Islip flight route.

  • Which aircraft models fly most regularly from Atlanta to Islip?

    The Airbus A320neo is the aircraft model that flies most regularly on the Atlanta to Islip flight route.

  • Which is the best airline for flights from Atlanta to Islip, Southwest or Frontier?

    The two airlines most popular with KAYAK users for flights from Atlanta to Islip are Southwest and Frontier. With an average price for the route of $407 and an overall rating of 8.0, Southwest is the most popular choice. Frontier is also a great choice for the route, with an average price of $168 and an overall rating of 5.7.

  • How does KAYAK find such low prices on flights from Atlanta to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Atlanta to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Atlanta to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Atlanta is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Atlanta to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Atlanta with another airline. Booking your flights between Atlanta and ISP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Atlanta to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Atlanta up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Atlanta to Islip

  • Looking for a cheap flight? 25% of our users found flights on this route for $124 or less one-way.
  • Although there are no nonstop flights from Atlanta to Islip, passengers can travel with either one-stop flights or two-stop flights with common layovers in cities like Baltimore Washington International Thurgood Marshall Airport (BWI), Orlando International Airport (MCO), Phoenix Sky Harbor International Airport (PHX) and Tampa International Airport (TPA).
  • Passengers sitting for long periods without any form of entertainment can experience discomfort. To minimize the stress of a long journey, consider booking a flight in a more luxurious cabin, such as Business or First Class. If you're ready to pay more, many airlines on this route, like Frontier, will inform you that an upgrade is available.
  • Traveling from Atlanta (ATL) to Islip (ISP) with a dog? Consider booking your flight with Jetblue Airlines. Your pet is guaranteed safety and security throughout the journey, and they will arrive healthy, thanks to the Jetblue pet service crew. Small dogs and cats only are allowed in the cabin, and their carriers must fit underneath the seat in front of you and be certified by the FAA. Each customer is limited to a single pet.
  • Several cities and towns surround Long Island MacArthur Airport (ISP). Some cities near ISP include Holbrook, Bohemia, and Lake Ronkonkoma. The airport is also within a reasonable distance of other notable places such as Patchogue, Smithtown, and Stony Brook. These nearby cities offer a range of amenities, dining options, and attractions for visitors to explore.
  • If you are a passenger with limited mobility traveling from Atlanta to Islip, consider booking your flight with Frontier. Frontier Airlines offers services to assist passengers with reduced mobility. They provide priority boarding and seating to accommodate those with special needs. Passengers can also request wheelchair assistance during check-in, boarding, and disembarkation. It's recommended to inform Frontier Airlines beforehand to ensure a smooth and comfortable travel experience.

Reviews of the top airlines flying from Atlanta to Islip

 
See real verified KAYAK customer reviews for airlines flying from Atlanta to Islip. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Atlanta to Islip? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4254 reviews
8.1Boarding
8.6Crew
7.5Entertainment
8.0Comfort
7.0Food
Airline reviews

We got exit row seats both flights. Everything was running on time

10.0 ExcellentMaggie, Jan 2026
FAT - LAS
Read more Southwest reviews

We got exit row seats both flights. Everything was running on time

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Pretty seamless, just a tad bit late in taking off and landing.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

One of the worst travel experiences I've had. Had a flight scheduled with CVG to RSW on VLSWQX this morning departing at 5:30. Two individuals at the gate and one was in training. Not her fault but she didn't have the ability to check people in resulting in at least 15 families that didn't make it on the plane because they weren't checked into the system in time. When arriving at the airport to drop off our prepaid checked bags, the bag drop off agent asked if we could check our bags at the gate because of the long line. We said no problem so arrived at the gate by 5:00. They told those people that had previously paid for checked bags to stand off to the side while they let others that either didn't have a checked bag or their bag was already on the plan through. Realizing the gate workers had an issue, they either called for help or this lady showed up late for work as she didn't arrive until 5:15. The worker who had been there training the other individual and working diligently to make sure all passengers got on board. He even said that at one point all people that are currently in line are fine but asked the person in training to stand outside the ticketing area around 5:15 to notify any late travels that the flight was in boarding process and they arrrived too late. At that point, we're sill standing off to the side with our pre-paid checked bags patiently waiting. When the new lady arrived she couldn't have been more rude. It was an awful seen. Essentially they had asked for those without an assigned seat to board last, those with pre-paid checked bag stand off to the site and any traveling with a larger items that needed to be checked at the gate (such as a stroller), wait on the side. They realized that the flight needed to leave on time so the gate attendant shut the gate. So anyone without a seat assignment, those that had pre-checked bags, and the worst one I saw was a mother with two infant children was in line with use because she was asked to stand to the side because her stroller. When they shut the door to the plan they told her she could no longer get on. Her checked bags were already on the plane with her car keys in them, and the lady told her we couldn't accept anyone else on because the door was shut. She didn't even have a way to get home from the airport. Truely evil behavior. I've flown Frontier enough to know customer service is not a top priority in the company's mission, but this was an all-time low. I'm sending this after an 18 hour drive that our family just completed to Bonita Springs . I felt really bad for the lady being trained and the other individual trying to help, but when the new lady came to the gate she was truly one of the rudest individuals I've ever met. One lady had been there since 4am but because she didn't have an assigned seat they wouldn't let her on the plan.

I loved the staff on the plane. So friendly and helpful! However, there was an argument and misunderstanding by the staff and a customer at the gate, and the staff member was being unprofessional. When we arrived in Atlanta, we waited 1.5 hrs for our luggage to arrive. When I asked the airport attendant, they said Frontier had the longest wait for luggage out of any airlines, and that they could not be held responsible for the delay.

Everything you need to know for your flight from Atlanta to Islip

Information on your arrival and departure airports