AirHint found the following cheapest return flights from Chicago (ORD) to Sao Paulo (GRU) in March 2026 (see full year).
Return flights
| 10 Mar - 10 Apr | Avianca | ||
| 05 Mar - 25 Mar | Copa | ||
| 16 Mar - 24 Mar | Copa | ||
| 16 Mar - 24 Mar | United | direct | |
| 03 Mar - 14 Mar | United | ||
| 08 Mar - 08 Apr | United | ||
| 06 Mar - 14 Mar | United | ||
| 09 Mar - 09 Apr | United | direct |
Also check the deals for one-way flights from Chicago to Sao Paulo in March.
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