Explore the cheapest flights from Islip to Charleston in the next three months. Based on Trip.com's data from the latest 7 days, one-way fares start at SEK 1,847, and round-trip tickets start at SEK 3,605.

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

Islip to Charleston Flight Details

The distance between Islip and Charleston is approximately 1,072.66km. It takes around 2 hours 47 minutes on average to fly from Islip to Charleston. Based on Trip.com's data travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight priceSEK 1,847
Cheapest return ticket priceSEK 3,605
Off-season for travelNovember
Peak season for travelJuly
Flight distance1,072.66km
Average flight time2 hours 47 minutes

Best Time to Book Flights from Islip to Charleston

The cheapest flights from Islip to Charleston are available between Jan 4 and Jan 11, with one way flights starting from SEK 950.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
  • 18
  • 815
  • 1522
  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Islip to Charleston, calculated over the upcoming 10 weeks.

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 SEK 1,847 on Cheapest nonstop routes (e.g. ISP to CHS on Fri, Dec 12), while Jetblue Airways offers Cheapest nonstop round-trips from SEK 3,605 departing on Sat, Dec 13 and returning on Mon, Dec 15.
  • It takes about 2 hours 47 minutes to fly from Islip (ISP) to Charleston (CHS).
  • 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.
  • 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 Fri, Dec 12, with one-way flights priced at just SEK 1,847.
    · 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.
  • The cheapest months to fly from Islip to Charleston is November, when demand for travel is lower.
  • 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 SEK 3,604.
  • The time difference between Charleston and Islip is 0h.
  • 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.