ISP - ATL

$64 Find Cheap Flights from Islip to Atlanta

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Atlanta departing on 3/4. 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 Atlanta

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Atlanta, 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 Islip to Atlanta, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$144
Typical prices: $278-$378
Frontier
tors 2/19ons 2/25
ISP - ATL • 1 stop
Cheapest one-way
$64
Overall average: $130
Frontier
ons 3/4
ISP - ATL • 1 stop
Top airlines
Frontier
Cheapest • from $144 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 43% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+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 Atlanta!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Islip to Atlanta (ISP-ATL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Atlanta 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 Islip to Atlanta

tors, feb 19 - ons, feb 25
Frontier Logo
3:34 pm - 9:51 pm
ISP
-
ATL
6h 17m
1 stop
Frontier Logo
10:49 pm - 4:22 pm
ATL
-
ISP
17h 33m
1 stop
$144Frontier
mån, feb 23 - tors, feb 26
Frontier Logo
3:59 pm - 9:47 pm
ISP
-
ATL
5h 48m
1 stop
Frontier Logo
9:52 am - 4:22 pm
ATL
-
ISP
6h 30m
1 stop
$154Frontier
mån, feb 23 - fre, feb 27
Frontier Logo
2:17 pm - 8:03 am
ISP
-
ATL
17h 46m
1 stop
Frontier Logo
10:59 pm - 7:48 am
ATL
-
ISP
32h 49m
2 stops
$163Frontier
lör, feb 21 - sön, mar 1
Frontier Logo
5:07 pm - 7:14 am
ISP
-
ATL
14h 07m
1 stop
Frontier Logo
10:46 pm - 7:38 am
ATL
-
ISP
8h 52m
1 stop
$179Frontier
mån, feb 23 - tors, feb 26
Frontier Logo
2:17 pm - 9:40 pm
ISP
-
ATL
7h 23m
1 stop
Frontier Logo
10:51 pm - 7:38 am
ATL
-
ISP
8h 47m
1 stop
$181Frontier
tors, feb 26 - tors, mar 12
Frontier Logo
3:34 pm - 9:46 pm
ISP
-
ATL
6h 12m
1 stop
Frontier Logo
6:00 am - 4:13 pm
ATL
-
ISP
10h 13m
1 stop
$189Frontier
mån, feb 23 - mån, mar 2
Multiple Airlines Logo
2:17 pm - 8:03 am
ISP
-
ATL
17h 46m
1 stop
Multiple Airlines Logo
10:59 pm - 11:10 am
ATL
-
ISP
36h 11m
2 stops
$193Multiple Airlines
tors, feb 5 - sön, feb 8
Frontier Logo
7:43 pm - 2:35 pm
ISP
-
ATL
18h 52m
1 stop
Frontier Logo
6:45 am - 6:48 pm
ATL
-
ISP
12h 03m
1 stop
$195Frontier
tors, feb 26 - tors, mar 12
Multiple Airlines Logo
11:55 am - 9:35 pm
ISP
-
ATL
9h 40m
2 stops
Multiple Airlines Logo
6:00 am - 4:13 pm
ATL
-
ISP
10h 13m
1 stop
$197Multiple Airlines
sön, feb 22 - ons, feb 25
Frontier Logo
8:21 pm - 10:03 am
ISP
-
ATL
13h 42m
1 stop
Frontier Logo
10:51 pm - 2:39 pm
ATL
-
ISP
15h 48m
1 stop
$199Frontier
Booking Insights

KAYAK's insights & trends for Islip to Atlanta flights

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Islip to Atlanta, 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 Islip to Atlanta is September, where tickets cost $192 (return) on average. On the other hand, the most expensive months are January and November, where the average cost of round-trip tickets is $756 and $396 respectively.

Good to know

Low seasonJanuary
Cheapest flight$64
Best time to beat the crowds but there is an average 125% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Islip to Atlanta

When to book flights from Islip to Atlanta

Are your dates flexible? Find out the best times to travel from Islip to Atlanta 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 Islip to Atlanta

  • What is the cheapest flight from Islip to Atlanta?

    In the last 3 days, the lowest price for a flight from Islip to Atlanta was $64 for a one-way ticket and $144 for a round-trip.

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

    No, a passport isn't needed to fly from Islip to Atlanta. However, local authorities might ask for an official ID.

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

    Delta, and JetBlue offer inflight Wi-Fi service on the Islip to Atlanta flight route.

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

    The Airbus A321neo is the aircraft model that flies most regularly on the Islip to Atlanta flight route.

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

    The two airlines most popular with KAYAK users for flights from Islip to Atlanta are Southwest and Frontier. With an average price for the route of $378 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 $198 and an overall rating of 5.7.

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

    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 Islip to Atlanta.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Atlanta from Islip 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 Islip to Atlanta?

    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 Atlanta with an airline and back to Islip with another airline. Booking your flights between Islip and ATL 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 Islip to Atlanta?

    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 Atlanta from Islip 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 Islip to Atlanta

 
See real verified KAYAK customer reviews for airlines flying from Islip to Atlanta. 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 Islip to Atlanta? 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 4269 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

Everything went smoothly and we even arrived a little bit early.

10.0 ExcellentAmy, Jan 2026
DEN - STL
Read more Southwest reviews

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

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

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

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.

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

Information on your arrival and departure airports