AirHint found the following cheapest return flights from San Francisco (SFO) to Mexico City (MEX) in October 2026 (see full year).
Return flights
| 06 Oct - 13 Oct | Delta | direct | |
| 22 Oct - 25 Oct | United | ||
| 28 Oct - 03 Nov | Avianca | ||
| 26 Oct - 06 Nov | Air Canada |
Also check the deals for one-way flights from San Francisco to Mexico City in October.
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