Southwest® flights from Des Moines to Long Island/Islip MacArthur from $219

Promo Code

Low fares from Des Moines to Long Island/Islip MacArthur

$

Des Moines (DSM)to

Long Island/Islip MacArthur (ISP)
Depart: 05/08/2026

One-way

Basic

From
$219
Seen: 22 hrs ago

Des Moines (DSM)to

Long Island/Islip MacArthur (ISP)
Depart: 05/08/2026

One-way

Choice

From
$264
Seen: 22 hrs ago

Des Moines (DSM)to

Long Island/Islip MacArthur (ISP)
Depart: 05/08/2026

One-way

Choice Preferred

From
$344
Seen: 22 hrs ago

Des Moines (DSM)to

Long Island/Islip MacArthur (ISP)
Depart: 05/08/2026

One-way

Choice Extra

From
$404
Seen: 22 hrs ago

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Explore flights from Des Moines to Long Island/Islip MacArthur

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Apr 2026
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May 2026
From$219*
Seen: 22 hrs ago
One Way/Basic
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    • *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:
    Des Moines Airport
    Arriving at:
    Long Island MacArthur Airport
    Distance:
    1071 miles

    Route Information

    29† 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 29 weekly flights from Des Moines to Long Island/Islip MacArthur on Southwest Airlines.
    To find the lowest fares by day and time to fly Des Moines 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 Des Moines 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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