AirHint found the following cheapest return flights from Boston (BOS) to Belo Horizonte (CNF) in September 2025 (see full year).

Return flights

11 Sep - 23 Sep	Copa
11 Sep - 28 Sep	Copa
11 Sep - 24 Sep	Copa
11 Sep - 21 Sep	Copa
17 Sep - 27 Sep	Copa
23 Sep - 03 Oct	Copa
15 Sep - 25 Sep	LATAM Airlines Group
19 Sep - 29 Sep	Copa
21 Sep - 01 Oct	LATAM Airlines Group
12 Sep - 24 Sep	Copa
13 Sep - 23 Sep	Copa
13 Sep - 24 Sep	Copa

Also check the deals for one-way flights from Boston to Belo Horizonte in September.

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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Cheapest return flights from Boston to Belo Horizonte in September from 373€

Return flights