Cheapest return flights from Miami to San Jose in September from $142

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

Return flights

28 Sep - 03 Oct Avianca
27 Sep - 11 Oct Volaris Costa Rica direct
26 Sep - 27 Sep Volaris El Salvador direct
30 Sep - 02 Oct Avianca
26 Sep - 28 Sep Volaris El Salvador direct
19 Sep - 22 Sep Volaris El Salvador direct
19 Sep - 21 Sep Volaris El Salvador direct
28 Sep - 03 Oct Volaris El Salvador direct
26 Sep - 01 Oct Volaris El Salvador
28 Sep - 02 Oct Volaris El Salvador
30 Sep - 03 Oct Avianca
23 Sep - 29 Sep Copa
29 Sep - 30 Sep Copa
23 Sep - 30 Sep Copa
23 Sep - 24 Sep Copa
26 Sep - 01 Oct American Airlines direct
30 Sep - 03 Oct American Airlines direct
26 Sep - 03 Oct American Airlines direct
20 Sep - 22 Sep Avianca
20 Sep - 22 Sep Avianca direct

Also check the deals for one-way flights from Miami to San Jose in September.

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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