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

Return flights

26 Aug - 30 Sep	TAP
27 Aug - 29 Sep	TAP
25 Aug - 28 Sep	Air France
31 Aug - 30 Sep	TAP
20 Aug - 30 Sep	TAP
21 Aug - 24 Sep	Lufthansa
25 Aug - 25 Sep	Avianca
26 Aug - 09 Sep	Avianca
19 Aug - 24 Sep	TAP
31 Aug - 14 Sep	Avianca
15 Aug - 17 Aug	Scandinavian Airlines
17 Aug - 23 Aug	Delta
19 Aug - 29 Aug	Delta
20 Aug - 29 Aug	Delta
20 Aug - 26 Aug	Delta
19 Aug - 26 Aug	Delta
20 Aug - 27 Aug	Delta
19 Aug - 28 Aug	Delta
17 Aug - 27 Aug	Delta
17 Aug - 28 Aug	Delta

Also check the deals for one-way flights from London to Sao Paulo 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 London to Sao Paulo in August from 690€

Return flights