Southwest® flights from Atlanta to Long Island/Islip MacArthur from $158

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Low fares from Atlanta to Long Island/Islip MacArthur

$

Atlanta (ATL)to

Long Island/Islip MacArthur (ISP)
Depart: 09/29/2026

One-way

Basic

From
$158
Seen: 11 hrs ago

Atlanta (ATL)to

Long Island/Islip MacArthur (ISP)
Depart: 10/01/2026

One-way

Basic

From
$163
Seen: 22 hrs ago

Atlanta (ATL)to

Long Island/Islip MacArthur (ISP)
Depart: 10/22/2026

One-way

Basic

From
$163
Seen: 8 hrs ago

Atlanta (ATL)to

Long Island/Islip MacArthur (ISP)
Depart: 10/05/2026

One-way

Basic

From
$163
Seen: 14 hrs ago

Atlanta (ATL)to

Long Island/Islip MacArthur (ISP)
Depart: 11/18/2026

One-way

Basic

From
$163
Seen: 5 hrs ago

Atlanta (ATL)to

Long Island/Islip MacArthur (ISP)
Depart: 10/24/2026

One-way

Basic

From
$163
Seen: 23 hrs ago

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Explore flights from Atlanta to Long Island/Islip MacArthur

Aug 2026
From$394*
Seen: 23 hrs ago
One Way/Basic
Sep 2026
From$158*
Seen: 11 hrs ago
One Way/Basic
Oct 2026
From$163*
Seen: 21 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $163
cmp-daily-histogram-bars-legend-max-price-aria-label $519
Displaying fares for August-2026
  • ATL–ISP, 08/21/2026: From $519
    21

    Fri

    AUG

  • ATL–ISP, 08/22/2026: From $519
    22

    Sat

  • ATL–ISP, 08/23/2026: From $519
    23

    Sun

  • ATL–ISP, 08/24/2026: From $519
    24

    Mon

  • ATL–ISP, 08/25/2026: From $514
    25

    Tue

  • ATL–ISP, 08/26/2026: From $394
    26

    Wed

  • ATL–ISP, 08/27/2026: From $399
    27

    Thu

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • ATL–ISP, 08/30/2026: From $394
    30

    Sun

  • ATL–ISP, 08/31/2026: From $394
    31

    Mon

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

  • ATL–ISP, 09/02/2026: From $389
    02

    Wed

  • ATL–ISP, 09/03/2026: From $254
    03

    Thu

  • ATL–ISP, 09/04/2026: From $249
    04

    Fri

  • ATL–ISP, 09/05/2026: From $249
    05

    Sat

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

  • ATL–ISP, 09/08/2026: From $244
    08

    Tue

  • ATL–ISP, 09/09/2026: From $249
    09

    Wed

  • ATL–ISP, 09/10/2026: From $188
    10

    Thu

  • ATL–ISP, 09/11/2026: From $183
    11

    Fri

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • ATL–ISP, 09/13/2026: From $219
    13

    Sun

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • ATL–ISP, 09/15/2026: From $163
    15

    Tue

  • ATL–ISP, 09/16/2026: From $163
    16

    Wed

  • ATL–ISP, 09/17/2026: From $265
    17

    Thu

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    18

    Fri

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • ATL–ISP: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

    • Range$163-$519

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Hartsfield-Jackson Atlanta International Airport
    Arriving at:
    Long Island MacArthur Airport
    Distance:
    795 miles

    Route Information

    71† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 71 weekly flights from Atlanta to Long Island/Islip MacArthur on Southwest Airlines.
    To find the lowest fares by day and time to fly Atlanta to Long Island/Islip MacArthur with Southwest, check out our Low Fare Calendar.
    You can rent a car at Long Island MacArthur Airport book yours with your flight.
    Yes! Flights from Atlanta to Long Island/Islip MacArthur—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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