ISP - ATL

$55 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 12/13. 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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Everything you should know

Cheapest round-trip
$110
Overall average: $500
Frontier
Thu 12/11Tue 12/16
ISP - ATL • 1 stop
Cheapest one-way
$55
Typical prices: $170-$304
Frontier
Sat 12/13
ISP - ATL • 1 stop
When to travel
September
Cheapest • 41% 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

Thu, Dec 11 - Tue, Dec 16
Frontier Logo
10:19 am - 2:40 pmISP-ATL
28h 21m1 stop
Frontier Logo
9:51 pm - 11:42 amATL-ISP
13h 51m1 stop
$110Frontier
Find Deal
Wed, Dec 10 - Sun, Dec 14
Frontier Logo
6:00 am - 5:48 pmISP-ATL
11h 48m1 stop
Frontier Logo
10:46 pm - 9:13 amATL-ISP
10h 27m1 stop
$124Frontier
Find Deal
Sun, Jan 4 - Thu, Jan 8
Frontier Logo
8:35 pm - 7:02 amISP-ATL
10h 27m1 stop
Frontier Logo
10:46 pm - 2:39 pmATL-ISP
15h 53m1 stop
$127Frontier
Find Deal
Fri, Dec 19 - Mon, Dec 22
Frontier Logo
1:27 pm - 10:43 amISP-ATL
21h 16m1 stop
Frontier Logo
5:40 am - 1:09 pmATL-ISP
7h 29m1 stop
$128Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 7
Frontier Logo
8:29 pm - 1:43 pmISP-ATL
17h 14m1 stop
Frontier Logo
10:40 pm - 11:59 pmATL-ISP
25h 19m1 stop
$138Frontier
Find Deal
Thu, Nov 27 - Wed, Dec 3
Frontier Logo
10:02 am - 10:00 pmISP-ATL
11h 58m1 stop
Frontier Logo
12:50 pm - 10:44 pmATL-ISP
9h 54m1 stop
$140Frontier
Find Deal
Sun, Dec 7 - Sun, Dec 21
Frontier Logo
11:15 am - 2:40 pmISP-ATL
27h 25m1 stop
Frontier Logo
5:55 am - 1:09 pmATL-ISP
7h 14m1 stop
$141Frontier
Find Deal
Sun, Dec 7 - Sun, Dec 14
Frontier Logo
11:15 am - 2:40 pmISP-ATL
27h 25m1 stop
Frontier Logo
10:46 pm - 9:13 amATL-ISP
10h 27m1 stop
$142Frontier
Find Deal
Fri, Dec 5 - Tue, Dec 9
Multiple Airlines Logo
8:29 pm - 11:04 pmISP-ATL
26h 35m2 stops
Multiple Airlines Logo
8:39 am - 7:34 pmATL-ISP
10h 55m1 stop
$143Multiple Airlines
Find Deal
Sun, Dec 21 - Sun, Dec 28
Frontier Logo
2:04 pm - 10:23 amISP-ATL
20h 19m1 stop
Frontier Logo
5:55 am - 1:09 pmATL-ISP
7h 14m1 stop
$144Frontier
Find Deal
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.

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 December and January, where the average cost of round-trip tickets is $500 and $419 respectively.

Good to know

Low seasonSeptember
Cheapest flight$55
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly and prices are also 2% 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 $55 for a one-way ticket and $110 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 $385 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 $210 and an overall rating of 5.8.

  • 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 4235 reviews
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
8.1Boarding
Airline reviews

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

10.0 ExcellentMichael, Nov 2025LAX - BWI
Read more Southwest reviews

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

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

Information on your arrival and departure airports