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Flights from Islip to Ponce

Search cheap flights from Islip to Ponce in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at KRW 251,666, and round-trip tickets start at KRW 953,789.

      • ISP 10:45
        11h 25m
        1 stop
        PSE 23:10
        Islip - Ponce | Thu, Dec 11 | Jetblue Airways
        PSE 05:20
        29h 35m
        1 stop
        ISP 09:55
        Ponce - Islip | Sun, Dec 14 | Jetblue Airways
        KRW 953,789 KRW 1,362,556
        30% OFF
        30% OFF
        KRW 1,362,556 KRW 953,789
      • ISP 13:00
        17h 25m
        1 stop
        PSE Invalid Date
        Islip - Ponce | Thu, Dec 11 | Normal Airline
        PSE 15:00
        6h
        Nonstop
        ISP 16:00
        Ponce - Islip | Sat, Dec 13 | Normal Airline
        Find More Flights
        Find More Flights

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

Islip to Ponce Flight Details

The distance between Islip and Ponce is about 2,609.72 km. Based on Trip.com's latest data, travel demand is highest in April. The off-season for travel is April.

Cheapest one-way flight priceKRW 251,666
Cheapest return ticket priceKRW 953,789
Cheapest monthApril
Peak season for travelApril
Flight distance2,609.72 km

When is the cheapest time to book flights from Islip to Ponce?

The cheapest time to fly from Islip to Ponce: Jan 11 to Jan 18 — one-way prices start at KRW 251,665.

Cheapest flights
From price
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  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 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 Ponce (ISP-PSE)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as KRW 251,666 on Cheapest nonstop routes (e.g. ISP to PSE on Thu, Jan 15), while Jetblue Airways offers Cheapest nonstop round-trips from KRW 953,789 departing on Thu, Dec 11 and returning on Sun, Dec 14.
  • 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 Ponce 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 Ponce, 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 Thu, Jan 15, with one-way flights priced at just KRW 251,666.
    · 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 Ponce travel is around April.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Islip to Ponce is April, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Islip to Ponce on December 11, 2025 with Jetblue Airways, with prices starting at KRW 953,788.
  • The time difference between Ponce and Islip is 1h.
  • 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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