AirHint found the following cheapest return flights from San Diego (SAN) to Sao Paulo (GRU) in January 2026 (see full year).
Return flights
| 26 Jan - 02 Feb | United | ||
| 27 Jan - 10 Feb | United | ||
| 25 Jan - 08 Feb | Frontier Airlines | ||
| 06 Jan - 14 Jan | Copa |
Also check the deals for one-way flights from San Diego to Sao Paulo in January.
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