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

Return flights

29 Oct - 14 Nov	Lufthansa
29 Oct - 23 Nov	Lufthansa
29 Oct - 27 Nov	Lufthansa
31 Oct - 02 Nov	Lufthansa
30 Oct - 02 Nov	Lufthansa
29 Oct - 03 Nov	Lufthansa
30 Oct - 24 Nov	Norse Atlantic Airways (UK)
28 Oct - 27 Nov	Lufthansa
31 Oct - 08 Nov	Wizz Air Malta
30 Oct - 08 Nov	United
23 Oct - 26 Oct	Finnair
23 Oct - 27 Oct	Finnair
21 Oct - 28 Oct	Finnair
21 Oct - 23 Oct	Finnair
23 Oct - 25 Oct	Finnair
22 Oct - 29 Oct	Finnair
23 Oct - 29 Oct	Finnair
23 Oct - 28 Oct	American Airlines
21 Oct - 25 Oct	American Airlines
21 Oct - 27 Oct	American Airlines

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

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 October from 767€

Return flights