Cheapest return flights from Islip to Charleston in July from $123

AirHint found the following cheapest return flights from Islip (ISP) to Charleston (CHS) in July 2025 (see full year).

Return flights

31 Jul - 04 Aug Breeze Airways
23 Jul - 28 Jul Breeze Airways direct
25 Jul - 28 Jul Breeze Airways direct
22 Jul - 25 Jul Breeze Airways
17 Jul - 21 Jul Breeze Airways
15 Jul - 22 Jul Breeze Airways
18 Jul - 22 Jul Breeze Airways
23 Jul - 25 Jul Breeze Airways direct
23 Jul - 26 Jul Breeze Airways direct
21 Jul - 24 Jul Breeze Airways
31 Jul - 03 Aug Breeze Airways
23 Jul - 24 Jul Breeze Airways

Also check the deals for one-way flights from Islip to Charleston in July.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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