Cheapest one-way flights from Boston to Sao Paulo in December from $258

AirHint found the following cheapest one-way flights from Boston (BOS) to Sao Paulo (GRU) in December 2025 (see full year).

One-Way flights

02 Dec Avianca
14 Dec Spirit Airlines
12 Dec Copa
17 Dec Spirit Airlines
15 Dec Spirit Airlines
16 Dec Spirit Airlines
22 Dec Spirit Airlines
18 Dec Spirit Airlines
01 Dec LATAM Airlines Group direct
12 Dec LATAM Airlines Group direct

Also check the deals for return flights from Boston to Sao Paulo in December.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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