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Southwest® flights from Long Island/Islip MacArthur to San Diego from $198

Promo Code

Low fares from Long Island/Islip MacArthur to San Diego

$

Long Island/Islip MacArthur (ISP)to

San Diego (SAN)
Depart: 07/22/2026

One-way

Basic

From
$198
Seen: 22 hrs ago

Long Island/Islip MacArthur (ISP)to

San Diego (SAN)
Depart: 08/11/2026

One-way

Basic

From
$198
Seen: 19 hrs ago

Long Island/Islip MacArthur (ISP)to

San Diego (SAN)
Depart: 06/02/2026

One-way

Basic

From
$198
Seen: 10 hrs ago

Long Island/Islip MacArthur (ISP)to

San Diego (SAN)
Depart: 06/23/2026

One-way

Basic

From
$203
Seen: 1 hour ago

Long Island/Islip MacArthur (ISP)to

San Diego (SAN)
Depart: 06/04/2026

One-way

Basic

From
$211
Seen: 10 hrs ago

Long Island/Islip MacArthur (ISP)to

San Diego (SAN)
Depart: 07/07/2026

One-way

Basic

From
$214
Seen: 7 hrs ago

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Explore flights from Long Island/Islip MacArthur to San Diego

May 2026
From$294*
Seen: 7 hrs ago
One Way/Basic
Jun 2026
From$198*
Seen: 10 hrs ago
One Way/Basic
Jul 2026
From$198*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $198
cmp-daily-histogram-bars-legend-max-price-aria-label $579
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    • Range$198-$579

    *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:
    Long Island MacArthur Airport
    Arriving at:
    San Diego International Airport
    Distance:
    2481 miles

    Route Information

    64† 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 64 weekly flights from Long Island/Islip MacArthur to San Diego on Southwest Airlines.
    To find the lowest fares by day and time to fly Long Island/Islip MacArthur to San Diego with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Diego International Airport book yours with your flight.
    Yes! Flights from Long Island/Islip MacArthur to San Diego—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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