AirHint found the following cheapest one-way flights from Boston (BOS) to Sao Paulo (GRU) in January 2026 (see full year).
One-Way flights
| 31 Jan | GOL Linhas Aéreas | ||
| 26 Jan | United | ||
| 19 Jan | Copa | ||
| 25 Jan | Copa | ||
| 23 Jan | Spirit Airlines | ||
| 22 Jan | LATAM Airlines Group | ||
| 30 Jan | Copa | ||
| 14 Jan | Spirit Airlines | ||
| 28 Jan | Spirit Airlines | ||
| 23 Jan | Delta | direct |
Also check the deals for return flights from Boston to Sao Paulo in January.
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