Cheapest return flights from St. Thomas to San Juan in July from $241

AirHint found the following cheapest return flights from St. Thomas (STT) to San Juan (SJU) in July 2025 (see full year).

Return flights

31 Jul - 03 Aug jetBlue direct
19 Jul - 21 Jul Cape Air
19 Jul - 21 Jul jetBlue direct
22 Jul - 24 Jul jetBlue
30 Jul - 30 Jul jetBlue direct
20 Jul - 01 Aug Spirit Airlines
21 Jul - 01 Aug Spirit Airlines
24 Jul - 01 Aug Spirit Airlines
31 Jul - 01 Aug Spirit Airlines
20 Jul - 08 Aug Spirit Airlines
21 Jul - 08 Aug Spirit Airlines
24 Jul - 08 Aug Spirit Airlines
31 Jul - 08 Aug Spirit Airlines
30 Jul - 01 Aug Spirit Airlines
20 Jul - 28 Jul Spirit Airlines
21 Jul - 28 Jul Spirit Airlines
24 Jul - 28 Jul Spirit Airlines
20 Jul - 21 Jul Spirit Airlines
20 Jul - 30 Jul Spirit Airlines
21 Jul - 30 Jul Spirit Airlines

Also check the deals for one-way flights from St. Thomas to San Juan in July.

Skyscanner

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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