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

Return flights

08 Sep - 14 Oct	Air France
10 Sep - 22 Sep	Air France
07 Sep - 21 Sep	Lufthansa
10 Sep - 21 Sep	Lufthansa
16 Sep - 22 Sep	KLM
15 Sep - 28 Sep	KLM
15 Sep - 22 Sep	KLM
01 Sep - 30 Sep	Air France
08 Sep - 14 Oct	British Airways	direct
15 Sep - 30 Sep	KLM
11 Sep - 20 Sep	Air France
21 Sep - 27 Sep	TAP
29 Sep - 04 Oct	TAP
22 Sep - 06 Oct	Lufthansa
29 Sep - 04 Oct	British Airways	direct

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 $813

Return flights