AirHint found the following cheapest return flights from Mexico City (MEX) to San Jose (SJO) in September 2026 (see full year).
Return flights
| 03 Sep - 09 Sep | Avianca | ||
| 09 Sep - 16 Sep | Avianca | ||
| 10 Sep - 15 Sep | Avianca | ||
| 03 Sep - 09 Sep | Avianca | direct | |
| 10 Sep - 15 Sep | Avianca | direct | |
| 09 Sep - 16 Sep | Avianca | direct |
Also check the deals for one-way flights from Mexico City to San Jose in September.
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