AirHint found the following cheapest return flights from London (LCY) to Rio De Janeiro (GIG) in September 2026 (see full year).

Return flights

10 Sep - 01 Oct	KLM
15 Sep - 01 Oct	KLM
10 Sep - 22 Sep	KLM
08 Sep - 23 Sep	KLM
11 Sep - 01 Oct	KLM
14 Sep - 01 Oct	KLM
17 Sep - 28 Sep	KLM
13 Sep - 01 Oct	KLM
01 Sep - 14 Sep	KLM
09 Sep - 30 Sep	KLM
07 Sep - 14 Sep	KLM
17 Sep - 30 Sep	KLM
11 Sep - 29 Sep	KLM
09 Sep - 23 Sep	KLM
17 Sep - 27 Sep	KLM
12 Sep - 01 Oct	KLM
19 Sep - 03 Oct	KLM
28 Sep - 09 Oct	ITA Airways
29 Sep - 09 Oct	ITA Airways
18 Sep - 02 Oct	ITA Airways

Also check the deals for one-way flights from London to Rio De Janeiro 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 London to Rio De Janeiro in September from $929

Return flights