Islip to Charleston Flight Tickets, Fares starting @€148

Flight FAQs

• Which airlines offer the cheapest flights from Islip (ISP) to Charleston (CHS)?

  Based on Trip.com data, Jetblue Airways offers one-way fares as low as €148 on Cheapest nonstop routes (e.g. ISP to CHS on Thu, Dec 11), while Jetblue Airways offers Cheapest nonstop round-trips from €335 departing on Sat, Dec 13 and returning on Mon, Dec 15.

• How long is the flight from Islip (ISP) to Charleston (CHS)?

  It takes about 2 hours 47 minutes to fly from Islip (ISP) to Charleston (CHS).

• When is the best time to book flights from Islip to Charleston?

  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 Charleston 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.

• How can I find the best deals on flights from Islip to Charleston?

  To find best deals on flights from Islip to Charleston, 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, Dec 11, with one-way flights priced at just €148.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Jetblue Airways.
  · 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 Charleston travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Islip to Charleston to get the best price?

  The cheapest months to fly from Islip to Charleston is November, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Islip to Charleston?

  After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Islip to Charleston on December 13, 2025 with Jetblue Airways, with prices starting at €334.

• What is the time difference between Islip and Charleston?

  The time difference between Charleston and Islip is 0h.

• How can I change or cancel my flight ticket from Islip to Charleston?

  Tickets can only be changed or cancelled 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.