AirHint found the following cheapest return flights from San Jose (SJO) to Miami (MIA) in August 2025 (see full year).

Return flights

30 Aug - 06 Sep	Avianca
30 Aug - 06 Sep	Volaris Costa Rica	direct
16 Aug - 23 Aug	Volaris Costa Rica	direct
06 Aug - 09 Aug	Avianca
07 Aug - 12 Aug	Avianca
04 Aug - 18 Aug	Avianca
28 Aug - 02 Sep	Avianca
25 Aug - 08 Sep	Volaris El Salvador	direct
16 Aug - 18 Aug	United
04 Aug - 18 Aug	Avianca	direct
01 Aug - 16 Aug	United
21 Aug - 29 Aug	Avianca
08 Aug - 12 Aug	Copa
27 Aug - 31 Aug	United
29 Aug - 04 Sep	Copa

Also check the deals for one-way flights from San Jose to Miami 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 San Jose to Miami in August from $166

Return flights