AirHint found the following cheapest return flights from San Salvador (SAL) to Mexico City (MEX) in September 2026 (see full year).
Return flights
| 25 Sep - 16 Oct | Avianca | ||
| 25 Sep - 16 Oct | Avianca | direct | |
| 16 Sep - 03 Oct | Viva | direct | |
| 05 Sep - 11 Sep | Viva | direct | |
| 25 Sep - 03 Oct | Viva | direct | |
| 25 Sep - 15 Oct | Viva | direct |
Also check the deals for one-way flights from San Salvador to Mexico City in September.
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