Find Cleveland to Islip flight deals for the next 3 months. One way flights from US$63, round trip flights from US$127.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cleveland to Islip Flight Information

The distance between Cleveland and Islip is approximately 736.02 km. The most popular month to fly to Islip is July. The off-season for travel is September.

Cheapest one-way flight priceUS$63
Cheapest return ticket priceUS$127
Cheapest monthSeptember
Peak season for travelJuly
Flight distance736.02 km

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

Best time for cheap flights from Cleveland to Islip are between Jan 4 and Jan 11 with one way fares from US$62

Cheapest flights
From price
Search
  • 29
  • 916
  • 1623
  • 2330
  • Dec

    307
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

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

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Cleveland to Islip 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.
  • The cheapest months to fly from Cleveland to Islip is September, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Cleveland to Islip on November 13, 2025 with Frontier Airlines, with prices starting at US$126.
  • The time difference between Islip and Cleveland 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.