Cheapest return flights from Tampa to Islip in April from $88

Best time to book flights for Tampa (TPA) to Islip (ISP) flights at AirHint

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

Return flights

17 Apr - 28 Apr Frontier Airlines direct
24 Apr - 25 Apr Frontier Airlines direct
25 Apr - 27 Apr Frontier Airlines direct
28 Apr - 01 May Frontier Airlines direct
03 Apr - 06 Apr Frontier Airlines direct
07 Apr - 10 Apr Frontier Airlines direct
21 Apr - 24 Apr Frontier Airlines direct
19 Apr - 24 Apr Frontier Airlines direct
20 Apr - 24 Apr Frontier Airlines direct

Also check the deals for one-way flights from Tampa to Islip 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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