ISP - ATL

$122 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 8/4. 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

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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Flights 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, Aug 28 - Tue, Sep 2
Frontier Logo
7:33 pm - 7:42 amISP-ATL
12h 09m1 stop
Frontier Logo
6:14 pm - 11:59 pmATL-ISP
5h 45m1 stop
$234Frontier
Find Deal
Tue, Aug 26 - Sun, Aug 31
Frontier Logo
6:05 am - 12:50 pmISP-ATL
6h 45m1 stop
Frontier Logo
7:46 pm - 8:08 amATL-ISP
12h 22m1 stop
$247Frontier
Find Deal
Fri, Jul 25 - Fri, Aug 1
Frontier Logo
8:37 pm - 11:36 pmISP-ATL
26h 59m1 stop
Frontier Logo
6:32 pm - 7:42 pmATL-ISP
25h 10m1 stop
$257Frontier
Find Deal
Mon, Jul 21 - Fri, Jul 25
Frontier Logo
8:38 pm - 8:27 amISP-ATL
11h 49m1 stop
Frontier Logo
8:48 am - 7:42 pmATL-ISP
10h 54m1 stop
$272Frontier
Find Deal
Mon, Aug 11 - Mon, Aug 18
Frontier Logo
8:38 pm - 8:27 amISP-ATL
11h 49m1 stop
Frontier Logo
8:48 am - 7:52 pmATL-ISP
11h 04m1 stop
$277Frontier
Find Deal
Fri, Jul 11 - Fri, Jul 18
Frontier Logo
8:37 pm - 11:36 pmISP-ATL
26h 59m1 stop
Frontier Logo
8:48 am - 7:42 pmATL-ISP
10h 54m1 stop
$287Frontier
Find Deal
Tue, Jul 8 - Tue, Jul 15
Southwest Logo
6:00 am - 5:15 pmISP-ATL
11h 15m2 stops
Southwest Logo
4:00 pm - 10:55 pmATL-ISP
6h 55m1 stop
$308Southwest
Find Deal
Wed, Jul 9 - Wed, Jul 16
Southwest Logo
6:25 am - 4:45 pmISP-ATL
10h 20m1 stop
Southwest Logo
2:30 pm - 10:55 pmATL-ISP
8h 25m2 stops
$343Southwest
Find Deal
Thu, Jul 24 - Sun, Jul 27
Southwest Logo
6:00 am - 2:05 pmISP-ATL
8h 05m2 stops
Southwest Logo
10:35 am - 5:20 pmATL-ISP
6h 45m1 stop
$382Southwest
Find Deal
Thu, Jul 17 - Sun, Jul 20
 Logo
7:39 pm - 11:33 pmISP-ATL
27h 54m2 stops
 Logo
8:01 pm - 10:04 amATL-ISP
14h 03m2 stops
Useful Info

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 Sundays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Atlanta, Tuesday 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 August, where tickets cost $121 (return) on average. On the other hand, the most expensive months are September and January, where the average cost of round-trip tickets is $481 and $411 respectively.

Good to know

Low seasonSeptember
High seasonAugust
Cheapest flight$122
Best time to beat the crowds but there is an average 59% increase in price.
Most popular time to fly and prices are also 60% 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 $122 for a one-way ticket and $234 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 $404 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 $127 and an overall rating of 5.9.

  • 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.

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 4287 reviews
7.1Food
8.2Boarding
8.0Comfort
7.6Entertainment
8.6Crew
Airline reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

6.0 GoodDavid, Jun 2025BWI - COS
Read more Southwest reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

Plane was down graded and I lost my uncharged exit row with more leg room. No mention or offer of refund from podium. Flight attendant was nice to explain this happens often and that I could request a refund via online form submission. I did this and have heard nothing back.

Worst airline experience. They were rude and kept changing our seats and/or giving our seats away so our family didn’t get to sit with each other. Almost everyone we dealt with at both airports with this airline was rude. The app kept giving us wrong information making things take longer. Dealing with them before TSA can take close to an hour…longer than I’ve ever had to deal with before. Never using this airline again.

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

Information on your arrival and departure airports

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