Nantucket (ACK) to Islip, Long Island (ISP) Flight Deals from $513!

Promo Code

Cape Air Tickets for Upcoming Nantucket (ACK) to Islip, Long Island (ISP) Flights

Aug 2026
From$553*
Viewed: 1 day ago
Flight Type One Way/Economy
Sep 2026
From$513*
Viewed: 19 hours ago
Flight Type One Way/Economy
Oct 2026
From$613*
Viewed: 1 day ago
Flight Type One Way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $553
cmp-daily-histogram-bars-legend-max-price-aria-label $703
Displaying fares for August-2026
  • ACK–ISP, 08/05/2026: From $603
    05

    We

    AUG

  • ACK–ISP, 08/06/2026: From $703
    06

    Th

  • ACK–ISP, 08/07/2026: From $583
    07

    Fr

  • ACK–ISP, 08/08/2026: From $573
    08

    Sa

  • ACK–ISP, 08/09/2026: From $703
    09

    Su

  • ACK–ISP: cmp-view-offers-disclaimer. Find Offers
    10

    Mo

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    11

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    12

    We

  • ACK–ISP: cmp-view-offers-disclaimer. Find Offers
    13

    Th

  • ACK–ISP, 08/14/2026: From $553
    14

    Fr

  • ACK–ISP, 08/15/2026: From $613
    15

    Sa

  • ACK–ISP, 08/16/2026: From $673
    16

    Su

  • ACK–ISP, 08/17/2026: From $603
    17

    Mo

  • ACK–ISP, 08/18/2026: From $553
    18

    Tu

  • ACK–ISP, 08/19/2026: From $573
    19

    We

  • ACK–ISP, 08/20/2026: From $553
    20

    Th

  • ACK–ISP, 08/21/2026: From $553
    21

    Fr

  • ACK–ISP, 08/22/2026: From $613
    22

    Sa

  • ACK–ISP, 08/23/2026: From $673
    23

    Su

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    24

    Mo

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    25

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    26

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    27

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    28

    Fr

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    29

    Sa

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    30

    Su

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    31

    Mo

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    01

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    SEP

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    02

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    03

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    04

    Fr

    • Range$553-$703

    *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 Nantucket to Islip, Long Island plane ticket offers

    $
    Find Nantucket to Islip, Long Island plane ticket offers
    From
    To
    Fare Type
    Dates
    Price
    Nantucket (ACK)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 09/06/2026

    Fares From

    $513

    Viewed: 19 hours ago

    Nantucket (ACK)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 09/11/2026

    Fares From

    $513

    Viewed: 19 hours ago

    Nantucket (ACK)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 09/10/2026

    Fares From

    $543

    Viewed: 19 hours ago

    Nantucket (ACK)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 08/14/2026

    Fares From

    $553

    Viewed: 1 day ago

    Nantucket (ACK)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 08/18/2026

    Fares From

    $553

    Viewed: 1 day ago

    Nantucket (ACK)Islip, Long Island (ISP)One-way
    /
    Economy    		Depart: 08/20/2026

    Fares From

    $553

    Viewed: 1 day ago

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