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

Return flights

20 Jul - 27 Jul	Allegiant Air
04 Jul - 09 Jul	Allegiant Air
12 Jul - 19 Jul	Allegiant Air
22 Jul - 29 Jul	Allegiant Air
22 Jul - 30 Jul	Allegiant Air
05 Jul - 10 Jul	Allegiant Air
13 Jul - 18 Jul	Allegiant Air
11 Jul - 13 Jul	Allegiant Air
31 Jul - 03 Aug	Allegiant Air
17 Jul - 20 Jul	Allegiant Air
04 Jul - 07 Jul	Allegiant Air

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

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Cheapest return flights from St. Petersburg to San Juan in July from $367

Return flights