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

Oct 2026
From$249*
Viewed: 6 hours ago
Flight Type One Way/Economy
Nov 2026
From$249*
Viewed: 6 hours ago
Flight Type One Way/Economy
Dec 2026
No result for this month.
cmp-daily-histogram-bars-legend-min-price-aria-label $249
cmp-daily-histogram-bars-legend-max-price-aria-label $339
Displaying fares for October-2026
  • BOS–ISP, 10/23/2026: From $249
    23

    Fr

    OCT

  • BOS–ISP, 10/24/2026: From $339
    24

    Sa

  • BOS–ISP, 10/25/2026: From $249
    25

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  • BOS–ISP, 10/26/2026: From $249
    26

    Mo

  • BOS–ISP, 10/27/2026: From $339
    27

    Tu

  • BOS–ISP, 10/28/2026: From $249
    28

    We

  • BOS–ISP, 10/29/2026: From $249
    29

    Th

  • BOS–ISP, 10/30/2026: From $309
    30

    Fr

  • BOS–ISP, 10/31/2026: From $249
    31

    Sa

  • BOS–ISP, 11/01/2026: From $249
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    NOV

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    13

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    14

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    18

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    • Range$249-$339

    *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: 09/09/2027

    Fares From

    $249

    Viewed: 10 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 09/10/2027

    Fares From

    $249

    Viewed: 10 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 09/20/2027

    Fares From

    $249

    Viewed: 10 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 09/13/2027

    Fares From

    $249

    Viewed: 9 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 09/19/2027

    Fares From

    $249

    Viewed: 9 hours ago

    Boston (BOS)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 06/22/2027

    Fares From

    $249

    Viewed: 9 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