AirHint found the following cheapest return flights from Rio De Janeiro (SDU) to London (STN) in December 2025 (see full year).

Return flights

05 Dec - 26 Jan	Azul Airlines
08 Dec - 31 Jan	Azul Airlines
03 Dec - 10 Dec	Azul Airlines
16 Dec - 29 Dec	Azul Airlines
09 Dec - 18 Jan	Azul Airlines
03 Dec - 03 Jan	Azul Airlines
11 Dec - 09 Jan	Azul Airlines
08 Dec - 28 Dec	Azul Airlines
09 Dec - 11 Jan	Azul Airlines
22 Dec - 22 Jan	GOL Linhas Aéreas
16 Dec - 14 Jan	Azul Airlines
01 Dec - 31 Dec	Azul Airlines
12 Dec - 21 Jan	Azul Airlines
09 Dec - 30 Jan	Azul Airlines
01 Dec - 07 Dec	Azul Airlines
23 Dec - 31 Dec	Azul Airlines
07 Dec - 14 Dec	Azul Airlines
01 Dec - 08 Dec	Azul Airlines
02 Dec - 09 Dec	Azul Airlines
05 Dec - 11 Dec	Azul Airlines

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

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 December from $927

Return flights