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

Return flights

26 Aug - 30 Sep	TAP
27 Aug - 29 Sep	TAP
25 Aug - 29 Sep	TAP
21 Aug - 15 Sep	ITA Airways
31 Aug - 30 Sep	Vueling Airlines
25 Aug - 28 Sep	TAP
15 Aug - 15 Sep	TAP
13 Aug - 18 Aug	Wizz Air UK
24 Aug - 05 Sep	Wizz Air Malta
21 Aug - 24 Sep	Air Europa
15 Aug - 17 Aug	Wizz Air UK
28 Aug - 11 Sep	Norse Atlantic Airways (UK)
19 Aug - 25 Aug	Norse Atlantic Airways (UK)
21 Aug - 28 Aug	Delta
17 Aug - 29 Aug	Delta
20 Aug - 27 Aug	Delta
17 Aug - 24 Aug	Delta
17 Aug - 25 Aug	Delta
22 Aug - 29 Aug	Delta
15 Aug - 21 Aug	TAP

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 685€

Return flights