AirHint found the following cheapest return flights from Rio De Janeiro (GIG) to London (LHR) in October 2025 (see full year).

Return flights

15 Oct - 28 Oct	LATAM Airlines Group
03 Oct - 06 Oct	GOL Linhas Aéreas
01 Oct - 08 Oct	LATAM Airlines Group
16 Oct - 17 Nov	TAP
16 Oct - 26 Oct	LATAM Airlines Group
01 Oct - 31 Oct	LATAM Airlines Group
24 Oct - 14 Nov	British Airways
03 Oct - 28 Oct	LATAM Airlines Group
17 Oct - 29 Nov	KLM
03 Oct - 09 Oct	Iberia
19 Oct - 28 Oct	TAP
08 Oct - 13 Oct	TAP
01 Oct - 29 Oct	TAP
03 Oct - 01 Nov	Air France
31 Oct - 02 Nov	Air France

Also check the deals for one-way flights from Rio De Janeiro to London 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 Rio De Janeiro to London in October from $870

Return flights