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Islip

$55+ Cheap flights from Atlanta to Islip, NY (ATL - ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ISP
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheap flight deals from Atlanta to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Atlanta (ATL) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$110
(CheapOair)

One-way from

$55
(CheapOair)

Popular in

April

Cheapest in

September

Average price

$270

Good one-way deal

$124 or less
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Islip Long Island flights.
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From Atlanta Hartsfield-Jackson to Islip Long Island
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One-way flight from Atlanta Hartsfield-Jackson to Islip Long Island
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Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Islip Long Island.
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Find flight deals from Atlanta to Islip

Cheapest flights from Atlanta to Islip
Explore the most affordable flight options available from Atlanta to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This CheapOair deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/89:10 pmATL - ISP
1 stop10h 52mFrontier
Wed 11/124:58 pmISP - ATL
1 stop14h 13mFrontier
Deal found 10/25$110
This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:31 pmATL - ISP
1 stop21h 06mFrontier
Tue 11/186:27 pmISP - ATL
1 stop24h 09mFrontier
Deal found 10/26$130
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:04 amATL - ISP
1 stop13h 40mFrontier
Sun 12/1411:15 amISP - ATL
1 stop20h 17mFrontier
Deal found 10/26$137
This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:49 pmATL - ISP
1 stop11h 48mFrontier
Mon 11/104:58 pmISP - ATL
1 stop25h 38mFrontier
Deal found 10/26$143
This Frontier deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:23 amATL - ISP
1 stop9h 19mFrontier
Thu 11/136:37 pmISP - ATL
1 stop12h 34mFrontier
Deal found 10/24$150
This Frontier deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:23 amATL - ISP
1 stop10h 43mFrontier
Wed 11/124:58 pmISP - ATL
1 stop5h 50mFrontier
Deal found 10/25$151
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:05 pmATL - ISP
2 stops19h 08mMultiple Airlines
Sun 12/1411:15 amISP - ATL
1 stop20h 17mMultiple Airlines
Deal found 10/26$161
This Cheapflightsfares deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:46 pmATL - ISP
1 stop10h 27mFrontier
Wed 12/176:00 amISP - ATL
1 stop11h 48mFrontier
Deal found 10/24$163
This CheapOair deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:40 pmATL - ISP
1 stop25h 19mFrontier
Tue 12/168:29 pmISP - ATL
1 stop25h 04mFrontier
Deal found 10/25$170
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:59 pmATL - ISP
2 stops35h 38mMultiple Airlines
Mon 11/174:58 pmISP - ATL
1 stop23h 22mMultiple Airlines
Deal found 10/26$175
This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:23 amATL - ISP
1 stop9h 19mFrontier
Sun 11/98:49 amISP - ATL
1 stop11h 54mFrontier
Deal found 10/26$176
This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:23 amATL - ISP
1 stop10h 43mFrontier
Fri 11/144:58 pmISP - ATL
1 stop7h 01mFrontier
Deal found 10/26$183

Cheapflights Fare Finder

 
Customize your flight search to find flights from Atlanta to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Atlanta to Islip that are best for you.

Fly from

Atlanta

Fly to

Islip

Route

Depart

Return

Price

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Sat 11/15

4:06 pm-8:02 am

1 stop15h 56m

Islip Long Island

Wed 11/19

4:58 pm-10:48 pm

1 stop5h 50m

$110

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Sat 11/15

9:10 pm-8:02 am

1 stop10h 52m

Islip Long Island

Mon 11/17

4:58 pm-11:59 pm

1 stop7h 01m

$110

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Wed 11/12

1:31 pm-5:42 pm

1 stop28h 11m

Islip Long Island

Sat 11/15

11:40 am-10:35 am

1 stop22h 55m

$110

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Sat 11/8

9:10 pm-8:02 am

1 stop10h 52m

Islip Long Island

Tue 11/11

6:27 pm-6:36 pm

1 stop24h 09m

$110

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Mon 12/8

3:45 pm-7:34 pm

1 stop27h 49m

Islip Long Island

Sat 12/13

10:19 am-6:01 pm

1 stop7h 42m

$130

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Wed 12/10

4:40 pm-9:13 am

1 stop16h 33m

Islip Long Island

Mon 12/15

6:00 am-7:31 am

1 stop25h 31m

$130

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Wed 12/3

9:04 am-10:44 pm

1 stop13h 40m

Islip Long Island

Sun 12/14

11:15 am-7:32 am

1 stop20h 17m

$137

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Fri 12/12

5:04 pm-11:59 pm

1 stop6h 55m

Islip Long Island

Sat 12/13

10:19 am-6:01 pm

1 stop7h 42m

$143

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Sun 12/7

10:40 pm-11:59 pm

1 stop25h 19m

Islip Long Island

Wed 12/10

6:00 am-5:48 pm

1 stop11h 48m

$143

AtlantaIslip

ATL - ISP

ATLISP

Atlanta Hartsfield-Jackson

Fri 12/5

5:04 pm-11:59 pm

1 stop6h 55m

Islip Long Island

Mon 12/8

6:00 am-7:31 am

1 stop25h 31m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 20 results
1
2

Compare providers for flights from Atlanta to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Atlanta to Islip in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Atlanta-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Atlanta-Islip, New York flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Atlanta-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Atlanta-Islip, New York flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Atlanta-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Atlanta to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Atlanta with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Atlanta to Islip, New York?

Currently, October is the cheapest month in which you can book a flight from Atlanta to Islip, New York (average of $20). Flying from Atlanta to Islip, New York in July is currently the most expensive (average of $88). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ATL to ISP?

Find hourly flight availability from Atlanta to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

A simple way to save on the total cost of your ticket is to fly from Atlanta to Islip, New York in the afternoon. If you’re flexible enough to do this you can expect to save up to 86% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated October 27, 2025.
Get a feel of what it's like to fly with Southwest and Frontier from Atlanta to Islip by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,123 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Atlanta to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Atlanta to Islip, New York?

    Frontier can get you from Atlanta to Islip, New York in just under 15h 56m. Your travel time can differ by up to . The distance between Atlanta and Islip, New York is about 793 mi.

  • What are the cheapest airlines flying from Atlanta to Islip, New York round-trip?

    Flying on Frontier is currently your cheapest option to Islip, New York, with prices starting at $57. Another option worth looking into is Southwest, starting at $296 round trip. You may be able to fly from Atlanta to Islip, New York for 82% less than the average price by searching for these airlines.

  • What are the cheapest flights from Atlanta to Islip, New York?

    While on average a flight from Atlanta to Islip, New York is generally $124, our data shows the cheapest flight currently is $124. When looking at the most popular route, (Atlanta Hartsfield-Jackson - Islip Long Island), you can expect to pay $110 for that flight.

  • Can I find deals for flights from Atlanta to Islip that include hotel bookings?

    Yes. In addition to deals on Atlanta to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Atlanta to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Islip.

  • Can I find deals for business class flights from Atlanta to Islip?

    Yes. Cheapflights offers flight deals from Atlanta to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Atlanta to Islip, New York?

    Currently, October is the cheapest month in which you can book a flight from Atlanta to Islip, New York (average of $20). Flying from Atlanta to Islip, New York in July is currently the most expensive (average of $88). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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Alternative routes for Atlanta to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Atlanta to Islip

Discover the top 2 airlines that operate flights from Atlanta to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$57Average$207FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$296Average$402FlexibilityNo cancel feeOn-time63%

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