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

Return flights

02 Mar - 30 Apr	Avianca
18 Mar - 26 Mar	Avianca
02 Mar - 19 Mar	Avianca
03 Mar - 16 Apr	LATAM Airlines Group
13 Mar - 20 Mar	LATAM Airlines Group
05 Mar - 13 Mar	Delta
15 Mar - 27 Mar	Delta	direct
04 Mar - 12 Mar	GOL Linhas Aéreas
19 Mar - 30 Mar	Delta	direct
24 Mar - 31 Mar	Copa
18 Mar - 25 Mar	Copa
29 Mar - 03 Apr	Delta	direct
29 Mar - 05 Apr	Delta	direct
19 Mar - 08 Apr	Delta	direct
24 Mar - 02 Apr	Copa
26 Mar - 02 Apr	Copa
26 Mar - 07 Apr	Copa
18 Mar - 01 Apr	Copa
26 Mar - 31 Mar	Delta
25 Mar - 01 Apr	Delta

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

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 Boston

Cheap car rent in Boston

Cheapest return flights from Sao Paulo to Boston in March from $434

Return flights