AirHint found the following cheapest return flights from Kansas City (MCI) to Sao Paulo (GRU) in December 2025 (see full year).
Return flights
| 15 Dec - 13 Jan | Spirit Airlines | ||
| 13 Dec - 18 Jan | Spirit Airlines | ||
| 11 Dec - 16 Dec | Allegiant Air | ||
| 11 Dec - 11 Jan | Spirit Airlines | ||
| 18 Dec - 05 Jan | Allegiant Air | ||
| 21 Dec - 28 Dec | LATAM Airlines Group |
Also check the deals for one-way flights from Kansas City to Sao Paulo in December.
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