ISP - ATL

$95 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 8/30. 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, Oct 16 - Mon, Oct 20
Southwest Logo
5:35 pm - 11:50 pmISP-ATL
6h 15m1 stop
Southwest Logo
6:25 pm - 11:45 pmATL-ISP
5h 20m1 stop
$189Southwest
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Thu, Oct 16 - Mon, Oct 20
Southwest Logo
3:20 pm - 11:50 pmISP-ATL
8h 30m2 stops
Southwest Logo
6:25 pm - 11:45 pmATL-ISP
5h 20m1 stop
$194Southwest
Find Deal
Thu, Aug 14 - Sun, Aug 17
Frontier Logo
2:05 pm - 9:22 pmISP-ATL
7h 17m1 stop
Frontier Logo
6:32 pm - 11:47 pmATL-ISP
5h 15m1 stop
$196Frontier
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Wed, Aug 6 - Wed, Aug 13
Southwest Logo
12:30 pm - 5:15 pmISP-ATL
4h 45m1 stop
Southwest Logo
1:25 pm - 9:05 pmATL-ISP
7h 40m1 stop
$214Southwest
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Fri, Oct 17 - Mon, Oct 20
Southwest Logo
3:20 pm - 9:15 pmISP-ATL
5h 55m1 stop
Southwest Logo
6:25 pm - 11:45 pmATL-ISP
5h 20m1 stop
$216Southwest
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Wed, Aug 6 - Wed, Aug 13
Southwest Logo
12:30 pm - 5:15 pmISP-ATL
4h 45m1 stop
Southwest Logo
12:45 pm - 9:05 pmATL-ISP
8h 20m2 stops
$219Southwest
Find Deal
Fri, Oct 17 - Mon, Oct 20
Southwest Logo
3:20 pm - 11:50 pmISP-ATL
8h 30m2 stops
Southwest Logo
6:25 pm - 11:45 pmATL-ISP
5h 20m1 stop
$222Southwest
Find Deal
Wed, Aug 6 - Wed, Aug 13
Southwest Logo
2:05 pm - 9:35 pmISP-ATL
7h 30m2 stops
Southwest Logo
12:45 pm - 9:05 pmATL-ISP
8h 20m2 stops
$224Southwest
Find Deal
Sat, Aug 16 - Mon, Aug 18
Frontier Logo
8:37 pm - 2:37 pmISP-ATL
18h 00m1 stop
Frontier Logo
7:47 pm - 11:59 pmATL-ISP
28h 12m1 stop
$233Frontier
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Thu, Aug 28 - Wed, Sep 3
Southwest Logo
3:05 pm - 8:55 pmISP-ATL
5h 50m1 stop
Southwest Logo
5:55 pm - 10:05 pmATL-ISP
4h 10m1 stop
$235Southwest
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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 Thursday 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$95
Best time to beat the crowds but there is an average 58% increase in price.
Most popular time to fly and prices are also 61% 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 $95 for a one-way ticket and $189 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 $399 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 $161 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.

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 4250 reviews
8.1Boarding
8.6Crew
7.6Entertainment
8.0Comfort
7.0Food
Airline reviews

It was one and half hour late... Not sure if any other experience matters.

4.0 OkaySudhir, Jul 2025LGA - MCI
Read more Southwest reviews

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

The delay was ridiculous because nary a word escaped from the gate attendant regarding our flight status. It was a complete joke.

I missed a flight because of a delay. I had to buy a new ticket through Southwest.

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Flight was delayed one hour. Notification to the crowd waiting near the gate was terrible…announcements were unclear and very hard to hear and therefore understand. Frontier does NOT send texts to notify, only email. The reader board over the gate itself was NEVER updated to indicate the gate had been changed. It’s like a bunch of children are running things.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

We’ve all seen the YouTube vids of out of control passengers. But this was an instance of a highly aggressive, bully flight attendant. Yelling in the face of a vet with PTSD who was texting their family. And no , we had not yet been instructed to put our phones in airplane mode. My suggestion is that you should pay whatever difference there is in order to avoid Frontier airlines. Additionally, after 3hrs trying to get customer service frontier offered a $25 voucher. I declined. This experience was so traumatic. To be verbally assaulted and abused by a flight attendant that has the power to say “boo” and I miss my flight ( which was to a family member’s funeral ). Frontier is unsafe and I cannot impress enough how much I discourage anyone ( esp those with any kind of disability like PTSD ) flying on Frontier.

My flight was delayed by two hours which made it so that I would miss my layover flight. I stood in line for customer service for over an hour and when I reached the agent she told me to scan a QR code and it'll give me options. I wasn't offered any help, guidance or compensation, only told that I have options but that I had to figure it all out myself. I was refunded part of the trip and had to buy an expensive same day ticket from another airline in order to get home. I will never fly Frontier again.

We were delayed three times ,and that destroyed my plans, and reservations

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

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