ISP - ATL

$71 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 10/5. 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

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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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

Fri, Sep 12 - Fri, Sep 26
Frontier Logo
9:49 am - 11:57 pmISP-ATL
14h 08m1 stop
Frontier Logo
2:15 pm - 4:23 pmATL-ISP
26h 08m1 stop
$144Frontier
Find Deal
Thu, Sep 25 - Tue, Sep 30
Frontier Logo
11:40 am - 11:55 pmISP-ATL
12h 15m1 stop
Frontier Logo
11:51 am - 10:40 amATL-ISP
22h 49m1 stop
$148Frontier
Find Deal
Fri, Sep 12 - Sat, Sep 13
Frontier Logo
5:12 pm - 11:57 pmISP-ATL
6h 45m1 stop
Frontier Logo
7:08 pm - 10:40 amATL-ISP
15h 32m1 stop
$149Frontier
Find Deal
Sun, Oct 26 - Fri, Oct 31
Frontier Logo
9:47 pm - 7:16 amISP-ATL
9h 29m1 stop
Frontier Logo
10:49 pm - 10:37 amATL-ISP
11h 48m1 stop
$150Frontier
Find Deal
Fri, Oct 17 - Sun, Oct 19
Frontier Logo
4:58 pm - 9:49 amISP-ATL
16h 51m1 stop
Frontier Logo
10:05 pm - 9:04 amATL-ISP
10h 59m1 stop
$152Frontier
Find Deal
Tue, Sep 23 - Fri, Sep 26
 Logo
11:25 am - 3:14 pmISP-ATL
27h 49m2 stops
 Logo
10:29 pm - 10:55 amATL-ISP
12h 26m1 stop
Tue, Oct 14 - Sat, Oct 18
Southwest Logo
11:40 am - 9:05 pmISP-ATL
9h 25m2 stops
Southwest Logo
8:00 am - 12:10 pmATL-ISP
4h 10m1 stop
$302Southwest
Find Deal
Sat, Oct 11 - Wed, Oct 15
Southwest Logo
11:55 am - 9:20 pmISP-ATL
9h 25m2 stops
Southwest Logo
8:00 am - 3:20 pmATL-ISP
7h 20m2 stops
$307Southwest
Find Deal
Tue, Oct 14 - Sat, Oct 18
Southwest Logo
11:40 am - 9:05 pmISP-ATL
9h 25m2 stops
Southwest Logo
6:10 am - 4:15 pmATL-ISP
10h 05m2 stops
$324Southwest
Find Deal
Thu, Nov 27 - Sat, Nov 29
Southwest Logo
12:35 pm - 5:15 pmISP-ATL
4h 40m1 stop
Southwest Logo
8:05 pm - 11:55 pmATL-ISP
3h 50m1 stop
$352Southwest
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’s the cheapest day of the week to fly from Islip to Atlanta?

The average price of all round-trip flights from Islip to Atlanta clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Islip to Atlanta, look for departures on Thursdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Atlanta, Friday is the cheapest day to fly and Wednesday is the most expensive.

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 June, where tickets cost $249 (return) on average. On the other hand, the most expensive months are September and January, where the average cost of round-trip tickets is $446 and $411 respectively.

Good to know

Low seasonSeptember
Cheapest flight$71
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly with an average 5% increase in price.
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 $71 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 $403 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 $215 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 4243 reviews
7.0Food
8.1Boarding
8.0Comfort
7.5Entertainment
8.6Crew
Airline reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

2.0 MediocreMike, Aug 2025AUS - BWI
Read more Southwest reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

My first flight was delayed 5 hours. The 2nd flight was canceled til the next day and the never even tried to compensate for it. Worse I was delayed again on the flight the rebooked me on.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

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

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