AirHint found the following cheapest return flights from Sao Paulo (GRU) to London (LHR) in September 2026 (see full year).

Return flights

15 Sep - 08 Oct	Air China
22 Sep - 01 Oct	Air China
19 Sep - 27 Sep	LATAM Airlines Group	direct
22 Sep - 29 Sep	Avianca
29 Sep - 06 Oct	Avianca
21 Sep - 06 Oct	Avianca
28 Sep - 16 Oct	Avianca
15 Sep - 24 Sep	LATAM Airlines Group	direct
22 Sep - 29 Sep	LATAM Airlines Group	direct
10 Sep - 21 Sep	Avianca
13 Sep - 20 Sep	Avianca
15 Sep - 22 Sep	Avianca
14 Sep - 27 Sep	Avianca
15 Sep - 21 Sep	Avianca
14 Sep - 28 Sep	Avianca
29 Sep - 09 Oct	Avianca
21 Sep - 21 Oct	Avianca
17 Sep - 04 Oct	Avianca
21 Sep - 12 Oct	Avianca
28 Sep - 11 Oct	Avianca

Also check the deals for one-way flights from Sao Paulo to London 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 Sao Paulo to London in September from 543€

Return flights