Southwest® flights from Seattle/Tacoma to Long Island/Islip MacArthur from $234

Promo Code

Low fares from Seattle/Tacoma to Long Island/Islip MacArthur

$

Seattle/Tacoma (SEA)to

Long Island/Islip MacArthur (ISP)
Depart: 12/16/2026

One-way

Basic

From
$234
Seen: 22 hrs ago

Seattle/Tacoma (SEA)to

Long Island/Islip MacArthur (ISP)
Depart: 12/17/2026

One-way

Basic

From
$240
Seen: 22 hrs ago

Seattle/Tacoma (SEA)to

Long Island/Islip MacArthur (ISP)
Depart: 01/04/2027

One-way

Basic

From
$240
Seen: 6 hrs ago

Seattle/Tacoma (SEA)to

Long Island/Islip MacArthur (ISP)
Depart: 12/24/2026

One-way

Basic

From
$269
Seen: 22 hrs ago

Seattle/Tacoma (SEA)to

Long Island/Islip MacArthur (ISP)
Depart: 12/16/2026

One-way

Choice

From
$289
Seen: 22 hrs ago

Seattle/Tacoma (SEA)to

Long Island/Islip MacArthur (ISP)
Depart: 12/17/2026

One-way

Choice

From
$295
Seen: 22 hrs ago

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Explore flights from Seattle/Tacoma to Long Island/Islip MacArthur

Try alternate month or interact with individual days below in order to find offers.
Nov 2026
No result for this month.
Dec 2026
From$234*
Seen: 22 hrs ago
One Way/Basic
Jan 2027
From$240*
Seen: 6 hrs ago
One Way/Basic
Displaying fares for November-2026
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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:
    Seattle/Tacoma International Airport
    Arriving at:
    Long Island MacArthur Airport
    Distance:
    2448 miles

    Questions we hear the most

    There are 32 weekly flights from Seattle/Tacoma to Long Island/Islip MacArthur on Southwest Airlines.
    To find the lowest fares by day and time to fly Seattle/Tacoma 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 Seattle/Tacoma 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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