AirHint found the following cheapest return flights from Tampa (TPA) to San Juan (SJU) in September 2025 (see full year).

Return flights

14 Sep - 18 Sep	Frontier Airlines	direct
08 Sep - 14 Sep	Frontier Airlines
07 Sep - 14 Sep	Frontier Airlines
09 Sep - 15 Sep	Frontier Airlines
09 Sep - 15 Sep	jetBlue	direct
06 Sep - 15 Sep	Spirit Airlines
08 Sep - 14 Sep	jetBlue	direct
07 Sep - 14 Sep	jetBlue	direct

Also check the deals for one-way flights from Tampa to San Juan in September.

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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Cheapest return flights from Tampa to San Juan in September from $191

Return flights