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

Return flights

24 Sep - 29 Oct	Lufthansa
17 Sep - 24 Sep	LATAM Airlines Group
22 Sep - 29 Sep	LATAM Airlines Group
29 Sep - 26 Oct	LATAM Airlines Group
23 Sep - 30 Sep	LATAM Airlines Group
18 Sep - 24 Sep	LATAM Airlines Group
23 Sep - 27 Sep	KLM
14 Sep - 30 Sep	GOL Linhas Aéreas
03 Sep - 11 Sep	GOL Linhas Aéreas
30 Sep - 31 Oct	KLM
25 Sep - 30 Sep	LATAM Airlines Group
19 Sep - 05 Oct	LATAM Airlines Group
26 Sep - 07 Oct	Air France
28 Sep - 06 Oct	Air France
12 Sep - 17 Sep	Air France
23 Sep - 07 Oct	KLM
08 Sep - 01 Oct	Copa
08 Sep - 14 Sep	KLM
26 Sep - 11 Oct	Air France
04 Sep - 13 Oct	LATAM Airlines Group

Also check the deals for one-way flights from Rio De Janeiro to London in September.

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 September from $1024

Return flights