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

Return flights

18 Jul - 29 Jul	Avianca
19 Jul - 29 Jul	Avianca
19 Jul - 30 Jul	Avianca
19 Jul - 31 Jul	Avianca
18 Jul - 21 Jul	Avianca
21 Jul - 28 Jul	Copa
11 Jul - 14 Jul	Copa
24 Jul - 02 Aug	Copa
14 Jul - 21 Jul	Avianca
17 Jul - 28 Jul	Avianca
18 Jul - 28 Jul	Avianca
21 Jul - 01 Aug	Avianca
24 Jul - 04 Aug	Copa
24 Jul - 01 Aug	Copa
31 Jul - 10 Aug	Avianca
19 Jul - 01 Aug	Spirit Airlines
19 Jul - 04 Aug	Spirit Airlines
18 Jul - 01 Aug	Spirit Airlines
18 Jul - 04 Aug	Spirit Airlines
19 Jul - 09 Aug	Spirit Airlines

Also check the deals for one-way flights from San Jose 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.

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Cheapest return flights from San Jose to San Juan in July from 180€

Return flights