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

Return flights

17 Sep - 24 Sep	Iberia
10 Sep - 17 Sep	Iberia
23 Sep - 04 Oct	Iberia
26 Sep - 10 Oct	Avianca
24 Sep - 29 Oct	Iberia
27 Sep - 10 Oct	Air Europa
05 Sep - 12 Sep	Copa
17 Sep - 04 Oct	Iberia
09 Sep - 16 Sep	ITA Airways
12 Sep - 20 Sep	Iberia
17 Sep - 10 Oct	Iberia
03 Sep - 17 Sep	Iberia
27 Sep - 12 Oct	Avianca
30 Sep - 18 Oct	Iberia
26 Sep - 06 Oct	Avianca
19 Sep - 03 Oct	Iberia
08 Sep - 19 Sep	Avianca
11 Sep - 18 Sep	Iberia
08 Sep - 27 Sep	Avianca
07 Sep - 30 Sep	ITA Airways

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 $966

Return flights