AirHint found the following cheapest return flights from Guadalajara (GDL) to San Juan (SJU) in August 2025 (see full year).

Return flights

29 Aug - 01 Sep	Volaris
21 Aug - 26 Aug	Viva
30 Aug - 01 Sep	Viva
26 Aug - 01 Sep	Volaris
27 Aug - 02 Sep	Copa
27 Aug - 01 Sep	Viva
20 Aug - 27 Aug	Viva
19 Aug - 26 Aug	Volaris
20 Aug - 26 Aug	Viva
28 Aug - 31 Aug	Volaris

Also check the deals for one-way flights from Guadalajara to San Juan in August.

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 Guadalajara to San Juan in August from 341€

Return flights