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

Return flights

13 Sep - 15 Sep	Avianca
25 Sep - 02 Oct	Avianca
03 Sep - 08 Sep	Avianca
11 Sep - 15 Sep	Avianca
19 Sep - 30 Sep	Avianca
22 Sep - 29 Sep	Avianca
15 Sep - 29 Sep	Avianca
06 Sep - 26 Sep	Avianca
14 Sep - 26 Sep	Avianca	direct
20 Sep - 27 Sep	Avianca	direct
11 Sep - 18 Sep	Avianca
27 Sep - 04 Oct	Avianca	direct
25 Sep - 20 Oct	Avianca
27 Sep - 05 Oct	Avianca
25 Sep - 02 Oct	American Airlines	direct
25 Sep - 01 Oct	Avianca

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

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 September from 164€

Return flights