AirHint found the following cheapest return flights from Sao Paulo (GRU) to London (LHR) in August 2025 (see full year).

Return flights

18 Aug - 07 Sep	Avianca
17 Aug - 22 Aug	Avianca
18 Aug - 08 Sep	Avianca
18 Aug - 23 Aug	Avianca
18 Aug - 25 Aug	Avianca
17 Aug - 30 Aug	Avianca
18 Aug - 31 Aug	Avianca
18 Aug - 27 Aug	Avianca
17 Aug - 21 Aug	Avianca
17 Aug - 01 Sep	Avianca
30 Aug - 03 Sep	Ethiopian Airlines
19 Aug - 02 Sep	Avianca
17 Aug - 11 Sep	Avianca
19 Aug - 29 Aug	Avianca
19 Aug - 08 Sep	Avianca
19 Aug - 03 Sep	Avianca
16 Aug - 22 Aug	Avianca
16 Aug - 31 Aug	Avianca
17 Aug - 01 Sep	LATAM Airlines Group	direct
19 Aug - 04 Sep	Avianca

Also check the deals for one-way flights from Sao Paulo to London in August.

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 August from 753€

Return flights