Boston (BOS) to Islip, Long Island (ISP) Flight Deals from $249!

Promo Code

Cape Air Tickets for Upcoming Boston (BOS) to Islip, Long Island (ISP) Flights

Jul 2026
From$249*
Viewed: 10 hours ago
Flight Type One Way/Economy
Aug 2026
From$249*
Viewed: 17 hours ago
Flight Type One Way/Economy
Sep 2026
From$249*
Viewed: 17 hours ago
Flight Type One Way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $249
cmp-daily-histogram-bars-legend-max-price-aria-label $369
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    • Range$249-$369

    *Prices have been viewed by other users searching within the last 48 hours for flights on this route, and may not be currently available. Additional baggage charges and fees may apply. Other terms and conditions may apply.

    Find Boston to Islip, Long Island plane ticket offers

    $
    Find Boston to Islip, Long Island plane ticket offers
    From
    To
    Fare Type
    Dates
    Price
    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 05/27/2027

    Fares From

    $249

    Viewed: 21 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 06/03/2027

    Fares From

    $249

    Viewed: 21 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 06/06/2027

    Fares From

    $249

    Viewed: 21 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 05/31/2027

    Fares From

    $249

    Viewed: 21 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 03/14/2027

    Fares From

    $249

    Viewed: 20 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 03/10/2027

    Fares From

    $249

    Viewed: 20 hours ago

    *Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.
    Boston (BOS) to Islip, Long Island (ISP) Flight Deals