Islip, Long Island (ISP) to Nantucket (ACK) Flight Deals from $493!

Promo Code

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

Aug 2026
From$493*
Viewed: 22 hours ago
Flight Type One Way/Economy
Sep 2026
From$633*
Viewed: 1 day ago
Flight Type One Way/Economy
Oct 2026
No result for this month.
cmp-daily-histogram-bars-legend-min-price-aria-label $493
cmp-daily-histogram-bars-legend-max-price-aria-label $703
Displaying fares for August-2026
  • ISP–ACK, 08/22/2026: From $693
    22

    Sa

    AUG

  • ISP–ACK, 08/23/2026: From $603
    23

    Su

  • ISP–ACK: cmp-view-offers-disclaimer. Find Offers
    24

    Mo

  • ISP–ACK, 08/25/2026: From $553
    25

    Tu

  • ISP–ACK, 08/26/2026: From $573
    26

    We

  • ISP–ACK, 08/27/2026: From $603
    27

    Th

  • ISP–ACK, 08/28/2026: From $603
    28

    Fr

  • ISP–ACK, 08/29/2026: From $633
    29

    Sa

  • ISP–ACK, 08/30/2026: From $583
    30

    Su

  • ISP–ACK, 08/31/2026: From $493
    31

    Mo

  • ISP–ACK: cmp-view-offers-disclaimer. Find Offers
    01

    Tu

    SEP

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    02

    We

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    03

    Th

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    04

    Fr

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    05

    Sa

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    06

    Su

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    07

    Mo

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    08

    Tu

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    09

    We

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    10

    Th

  • ISP–ACK, 09/11/2026: From $643
    11

    Fr

  • ISP–ACK, 09/12/2026: From $633
    12

    Sa

  • ISP–ACK, 09/13/2026: From $633
    13

    Su

  • ISP–ACK, 09/14/2026: From $663
    14

    Mo

  • ISP–ACK, 09/15/2026: From $703
    15

    Tu

  • ISP–ACK: cmp-view-offers-disclaimer. Find Offers
    16

    We

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    17

    Th

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    18

    Fr

  • ISP–ACK, 09/19/2026: From $633
    19

    Sa

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    20

    Su

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    21

    Mo

    • Range$493-$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 Islip, Long Island to Nantucket plane ticket offers

    $
    Find Islip, Long Island to Nantucket plane ticket offers
    From
    To
    Fare Type
    Dates
    Price
    Islip, Long Island (ISP)Nantucket (ACK)One-way
    /
    Economy    		Depart: 08/31/2026

    Fares From

    $493

    Viewed: 22 hours ago

    Islip, Long Island (ISP)Nantucket (ACK)One-way
    /
    Economy    		Depart: 08/25/2026

    Fares From

    $553

    Viewed: 22 hours ago

    Islip, Long Island (ISP)Nantucket (ACK)One-way
    /
    Economy    		Depart: 08/26/2026

    Fares From

    $573

    Viewed: 22 hours ago

    Islip, Long Island (ISP)Nantucket (ACK)One-way
    /
    Economy    		Depart: 08/30/2026

    Fares From

    $583

    Viewed: 22 hours ago

    Islip, Long Island (ISP)Nantucket (ACK)One-way
    /
    Economy    		Depart: 08/23/2026

    Fares From

    $603

    Viewed: 1 day ago

    Islip, Long Island (ISP)Nantucket (ACK)One-way
    /
    Economy    		Depart: 08/28/2026

    Fares From

    $603

    Viewed: 22 hours ago

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