AirHint found the following cheapest return flights from Houston (IAH) to Sao Paulo (GRU) in October 2025 (see full year).
Return flights
| 27 Oct - 05 Nov | Spirit Airlines | ||
| 26 Oct - 02 Nov | Spirit Airlines | ||
| 26 Oct - 01 Nov | Spirit Airlines |
Also check the deals for one-way flights from Houston to Sao Paulo in October.
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