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

Return flights

22 Sep - 29 Sep	LATAM Airlines Group
15 Sep - 22 Sep	LATAM Airlines Group
29 Sep - 06 Oct	Azul Airlines
13 Sep - 23 Sep	Azul Airlines
04 Sep - 11 Sep	LATAM Airlines Group
01 Sep - 01 Oct	Azul Airlines

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 725€

Return flights