AirHint found the following cheapest return flights from Houston (IAH) to Sao Paulo (GRU) in January 2026 (see full year).
Return flights
| 17 Jan - 25 Jan | Frontier Airlines | ||
| 30 Jan - 02 Feb | Spirit Airlines | ||
| 18 Jan - 24 Jan | Air Canada | ||
| 30 Jan - 02 Feb | United | direct |
Also check the deals for one-way flights from Houston to Sao Paulo in January.
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