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Flights from Islip to Key West

Search cheap flights from Islip to Key West in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at €80, and round-trip tickets start at €687.

      • ISP 07:30
        9h 45m
        2 stops
        EYW 17:15
        Islip - Key West | Tue, Dec 9 | Cape Air
        EYW 18:10
        16h 54m
        2 stops
        ISP 11:04
        Key West - Islip | Sat, Dec 13 | Delta Air Lines
        €687 €1,154
        41% OFF
        41% OFF
        €1,154 €687
      • ISP 12:40
        25h 11m
        2 stops
        EYW 13:51
        Islip - Key West | Sun, Dec 14 | Cape Air
        EYW 16:10
        18h 54m
        2 stops
        ISP 11:04
        Key West - Islip | Sun, Dec 21 | United Airlines
        €710 €1,154
        38% OFF
        38% OFF
        €1,154 €710
      • ISP 12:25
        23h 40m
        2 stops
        EYW 12:05
        Islip - Key West | Sat, Jan 24 | Jetblue Airways
        EYW 13:00
        19h 52m
        2 stops
        ISP 08:52
        Key West - Islip | Sat, Jan 31 | Jetblue Airways
        €733 €1,154
        36% OFF
        36% OFF
        €1,154 €733
      • ISP 07:25
        29h 38m
        2 stops
        EYW 13:03
        Islip - Key West | Sat, Jan 24 | Cape Air
        EYW 14:05
        26h 5m
        2 stops
        ISP 16:10
        Key West - Islip | Sat, Jan 31 | United Airlines
        €789
        32% OFF
        €1,154 €789
      • ISP 07:30
        9h 40m
        2 stops
        EYW 17:10
        Islip - Key West | Wed, Dec 10 | Cape Air
        EYW 18:05
        22h 10m
        2 stops
        ISP 16:15
        Key West - Islip | Sun, Dec 14 | Delta Air Lines
        €791
        32% OFF
        €1,154 €791
      • ISP 09:59
        28h 14m
        2 stops
        EYW 14:13
        Islip - Key West | Mon, Dec 22 | Cape Air
        EYW 15:09
        19h 56m
        2 stops
        ISP 11:05
        Key West - Islip | Fri, Dec 26 | United Airlines
        €808
        30% OFF
        €1,154 €808
      • ISP 13:00
        17h 25m
        1 stop
        EYW Invalid Date
        Islip - Key West | Thu, Dec 11 | Normal Airline
        EYW 15:00
        6h
        Nonstop
        ISP 16:00
        Key West - Islip | Sat, Dec 13 | Normal Airline
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        Find More Flights

Displayed flight fares from Islip to Key West are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Islip to Key West Flight Details

The distance between Islip and Key West is about 1,977.58 km. Based on Trip.com's latest data, travel demand is highest in November. The off-season for travel is September.

Cheapest one-way flight price€80
Cheapest return ticket price€687
Cheapest monthSeptember
Peak season for travelNovember
Flight distance1,977.58 km

When is the cheapest time to book flights from Islip to Key West?

The cheapest time to fly from Islip to Key West: Dec 7 to Dec 14 — one-way prices start at €80.

Cheapest flights
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  • 714
  • 1421
  • 2128

  • Jan

    284
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  • 1118
  • 1825

  • Feb

    251
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  • 815
  • 1522

  • Mar

    221
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Islip to Key West (ISP-EYW)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as €80 on Cheapest nonstop routes (e.g. ISP to EYW on Sun, Dec 14), while Cape Air offers Cheapest nonstop round-trips from €687 departing on Tue, Dec 9 and returning on Sat, Dec 13.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Islip to Key West is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Islip to Key West, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Dec 14, with one-way flights priced at just €80.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Key West travel is around November.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Islip to Key West is September, when demand for travel is lower.
  • The time difference between Key West and Islip is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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