Cheapest return flights from Islip to Cancun in April from $476

Best time to book flights for Islip (ISP) to Cancun (CUN) flights at AirHint

AirHint found the following cheapest return flights from Islip (ISP) to Cancun (CUN) in April 2025 (see full year).

Return flights

02 Apr - 06 Apr Frontier Airlines
04 Apr - 06 Apr Frontier Airlines
19 Apr - 26 Apr Frontier Airlines
12 Apr - 17 Apr Frontier Airlines
11 Apr - 17 Apr Frontier Airlines
12 Apr - 19 Apr Frontier Airlines

Also check the deals for one-way flights from Islip to Cancun in April.

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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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