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

Return flights

29 Oct - 17 Nov	Lufthansa
29 Oct - 19 Nov	Lufthansa
11 Oct - 22 Oct	TAP
22 Oct - 29 Oct	TAP
12 Oct - 29 Oct	TAP
06 Oct - 20 Oct	TAP
08 Oct - 22 Oct	TAP
06 Oct - 24 Oct	TAP
06 Oct - 16 Oct	TAP
06 Oct - 14 Oct	TAP
08 Oct - 14 Oct	TAP
08 Oct - 13 Oct	TAP
12 Oct - 02 Nov	TAP
06 Oct - 23 Nov	TAP
12 Oct - 26 Nov	TAP
08 Oct - 05 Nov	TAP
21 Oct - 06 Nov	TAP
20 Oct - 10 Nov	TAP
11 Oct - 02 Nov	TAP
08 Oct - 10 Nov	TAP

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 $846

Return flights