Southwest® flights from Long Island/Islip MacArthur to San Francisco from $184

Promo Code

Low fares from Long Island/Islip MacArthur to San Francisco

$

Long Island/Islip MacArthur (ISP)to

San Francisco (SFO)
Depart: 04/15/2026

One-way

Basic

From
$184
Seen: 22 hrs ago

Long Island/Islip MacArthur (ISP)to

San Francisco (SFO)
Depart: 06/04/2026

One-way

Basic

From
$200
Seen: 3 hrs ago

Long Island/Islip MacArthur (ISP)to

San Francisco (SFO)
Depart: 04/15/2026

One-way

Choice

From
$224
Seen: 22 hrs ago

Long Island/Islip MacArthur (ISP)to

San Francisco (SFO)
Depart: 06/15/2026

One-way

Basic

From
$234
Seen: 17 hrs ago

Long Island/Islip MacArthur (ISP)to

San Francisco (SFO)
Depart: 06/17/2026

One-way

Basic

From
$239
Seen: 17 hrs ago

Long Island/Islip MacArthur (ISP)to

San Francisco (SFO)
Depart: 05/22/2026

One-way

Basic

From
$239
Seen: 43 minutes ago

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Explore flights from Long Island/Islip MacArthur to San Francisco

Mar 2026
From$294*
Seen: 59 seconds ago
One Way/Basic
Apr 2026
From$184*
Seen: 22 hrs ago
One Way/Basic
May 2026
From$239*
Seen: 43 minutes ago
One Way/Basic
$294
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    • Range$294-$554

    *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 Francisco International Airport
    Distance:
    2619 miles

    Route Information

    38† 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 38 weekly flights from Long Island/Islip MacArthur to San Francisco on Southwest Airlines.
    To find the lowest fares by day and time to fly Long Island/Islip MacArthur to San Francisco with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Francisco International Airport book yours with your flight.
    Yes! Flights from Long Island/Islip MacArthur to San Francisco—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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