AirHint found the following cheapest return flights from Boston (BOS) to Sao Paulo (GRU) in January 2026 (see full year).

Return flights

23 Jan - 17 Feb	United
31 Jan - 12 Feb	LATAM Airlines Group
29 Jan - 12 Feb	LATAM Airlines Group
29 Jan - 15 Feb	United
23 Jan - 06 Feb	Copa
30 Jan - 11 Feb	United
30 Jan - 16 Feb	United
30 Jan - 12 Feb	United
30 Jan - 13 Feb	United
08 Jan - 15 Jan	Spirit Airlines
01 Jan - 08 Jan	Air Canada
08 Jan - 15 Jan	Delta	direct
03 Jan - 10 Jan	Avianca

Also check the deals for one-way flights from Boston to Sao Paulo in January.

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.

Book a cheap hotel in Sao Paulo

Cheap car rent in Sao Paulo

Cheapest return flights from Boston to Sao Paulo in January from 481€

Return flights