AirHint found the following cheapest return flights from Chicago (ORD) to Sao Paulo (GRU) in April 2026 (see full year).
Return flights
| 02 Apr - 26 Apr | Frontier Airlines | ||
| 15 Apr - 21 Apr | Arajet | ||
| 03 Apr - 06 Apr | Avianca | ||
| 01 Apr - 14 Apr | United | direct | |
| 16 Apr - 23 Apr | United | direct | |
| 02 Apr - 26 Apr | United | direct |
Also check the deals for one-way flights from Chicago to Sao Paulo in April.
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