ATL - ISP

$70 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 5/17. 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
$140
Typical prices: $434-$281
Frontier
Wed 5/6Sat 5/9
ATL - ISP • 1 stop
Cheapest one-way
$70
Typical prices: $142-$219
Frontier
Sun 5/17
ATL - ISP • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Atlanta and Islip. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $149 (round-trip)
Shortest trip • 4h 30m (one-way)
Insights
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Insights
When to travel
Cheapest • 81% price drop
Most popular
Good to know
Good to know
+1
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Wed, May 6 - Sat, May 9
Frontier Logo
5:53 pm - 10:27 am
ATL
-
ISP
16h 34m
1 stop
Frontier Logo
6:43 pm - 9:01 am
ISP
-
ATL
14h 18m
1 stop
$140Frontier
Fri, May 1 - Tue, May 5
Frontier Logo
10:12 am - 7:36 pm
ATL
-
ISP
9h 24m
1 stop
Frontier Logo
5:38 pm - 4:58 pm
ISP
-
ATL
23h 20m
1 stop
$145Frontier
Tue, May 19 - Mon, May 25
Frontier Logo
8:07 pm - 10:05 am
ATL
-
ISP
13h 58m
1 stop
Frontier Logo
6:43 pm - 4:15 pm
ISP
-
ATL
21h 32m
1 stop
$151Frontier
Mon, May 4 - Fri, May 8
Frontier Logo
4:03 pm - 11:00 am
ATL
-
ISP
18h 57m
1 stop
Frontier Logo
6:59 pm - 3:14 pm
ISP
-
ATL
20h 15m
1 stop
$159Frontier
Tue, May 5 - Sat, May 9
Frontier Logo
5:53 pm - 10:05 am
ATL
-
ISP
16h 12m
1 stop
Frontier Logo
6:43 pm - 9:01 am
ISP
-
ATL
14h 18m
1 stop
$160Frontier
Thu, May 21 - Sat, May 23
Frontier Logo
5:05 am - 10:27 am
ATL
-
ISP
5h 22m
1 stop
Frontier Logo
11:00 am - 4:28 pm
ISP
-
ATL
5h 28m
1 stop
$165Frontier
Sat, May 2 - Tue, May 5
Frontier Logo
10:45 pm - 9:13 am
ATL
-
ISP
10h 28m
1 stop
Frontier Logo
5:38 pm - 4:58 pm
ISP
-
ATL
23h 20m
1 stop
$171Frontier
Thu, Apr 30 - Mon, May 4
Frontier Logo
8:25 am - 7:36 pm
ATL
-
ISP
11h 11m
1 stop
Frontier Logo
8:31 pm - 9:01 am
ISP
-
ATL
12h 30m
1 stop
$180Frontier
Thu, May 14 - Mon, May 18
Frontier Logo
7:50 pm - 6:14 pm
ATL
-
ISP
22h 24m
1 stop
Frontier Logo
11:00 am - 7:02 pm
ISP
-
ATL
8h 02m
1 stop
$181Frontier
Fri, May 1 - Tue, May 5
Frontier Logo
6:00 am - 7:36 pm
ATL
-
ISP
13h 36m
1 stop
Frontier Logo
5:38 pm - 8:44 pm
ISP
-
ATL
27h 06m
2 stops
$184Frontier
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.

How much is a round-trip flight from Atlanta to Islip, New York?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Atlanta to Islip, New York departing in May.

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 February, where tickets cost $58 (return) on average. On the other hand, the most expensive months are April and June, where the average cost of round-trip tickets is $826 and $441 respectively.

Good to know

Low seasonJanuary
Cheapest flight$70
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 41% 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

  • 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 $70 for a one-way ticket and $140 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 $419 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 $178 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.

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 4330 reviews
8.6Crew
8.0Comfort
7.0Food
8.1Boarding
7.5Entertainment
Airline reviews

The seat was not comfortable. 1D. My back was sore all night and the next day.

8.0 ExcellentJolene, Apr 2026
LAS - DAL
Read more Southwest reviews

The seat was not comfortable. 1D. My back was sore all night and the next day.

Great flight. I didn't get a drink because I was asleep whole on the flight.

Great flight from Seattle to Phoenix and to Chicago-Midway from Phoenix

The new boarding process was easy and straightforward. Very pleasant.

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

It was as expected and I was grateful for the wheel chair help and ease of use.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

The new seat assignment thing is wierd. If you don’t pay for a seat they always assign you a middle seat regardless of how many people are on the flight. Idk… the new company that bought Southwest is trying to make it more profitable, but I’m just not seeing it. The flight attendants aren’t having as much fun anymore. It just feels like the airline is slowly dying. IMO. We shall see if Southwest is the next Toy’s R Us.

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

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

Information on your arrival and departure airports