Flights from Islip, NY to San Juan, PR

Promo Code

Best Deals on Flights From Islip, NY (ISP) to San Juan, PR (SJU)

Nov 2026
from$222*
Last seen: 20 hours ago
One-way/Economy
Dec 2026
from$191*
Last seen: 22 hours ago
One-way/Economy
Jan 2027
from$180*
Last seen: 10 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $191
Displaying fares for November-2026
  • ISP–SJU: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

    NOV

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    12

    Thu

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    13

    Fri

  • ISP–SJU, Nov 14, 2026: from $233
    14

    Sat

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    15

    Sun

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    16

    Mon

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    17

    Tue

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    18

    Wed

  • ISP–SJU, Nov 19, 2026: from $222
    19

    Thu

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    20

    Fri

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    21

    Sat

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    22

    Sun

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    23

    Mon

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    24

    Tue

  • ISP–SJU, Nov 25, 2026: from $362
    25

    Wed

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    26

    Thu

  • ISP–SJU, Nov 27, 2026: from $253
    27

    Fri

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    28

    Sat

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    29

    Sun

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    30

    Mon

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    01

    Tue

    DEC

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    02

    Wed

  • ISP–SJU, Dec 3, 2026: from $212
    03

    Thu

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    04

    Fri

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    05

    Sat

  • ISP–SJU, Dec 6, 2026: from $191
    06

    Sun

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    07

    Mon

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    08

    Tue

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    09

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    10

    Thu

    • Range$191-$362

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Islip, NY to San Juan, PR on Frontier

    $
    Flights Deals from Islip, NY to San Juan, PR on Frontier
    From
    To
    Islip, NY (ISP)San Juan, PR (SJU)One-way
    /
    Discount Den Basic Fare    		Departing Mar 15, 2027

    From

    $246

    Last seen: 8 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Islip, NY San Juan, PR

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