AirHint found the following cheapest return flights from Chicago (ORD) to Sao Paulo (GRU) in October 2026 (see full year).
Return flights
| 04 Oct - 22 Oct | Copa | ||
| 05 Oct - 28 Oct | Copa | ||
| 02 Oct - 11 Oct | GOL Linhas AΓ©reas | ||
| 19 Oct - 09 Nov | United | direct | |
| 14 Oct - 04 Nov | United | direct | |
| 07 Oct - 13 Oct | United | direct | |
| 29 Oct - 02 Nov | United | direct |
Also check the deals for one-way flights from Chicago to Sao Paulo in October.
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