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

Return flights

10 Dec - 16 Jan	Azul Airlines
11 Dec - 02 Jan	Azul Airlines
10 Dec - 05 Jan	Azul Airlines
15 Dec - 05 Jan	Azul Airlines
28 Dec - 16 Jan	LATAM Airlines Group
09 Dec - 15 Dec	Azul Airlines
07 Dec - 13 Dec	Azul Airlines
18 Dec - 28 Dec	Azul Airlines
30 Dec - 17 Jan	Azul Airlines
02 Dec - 22 Dec	Azul Airlines
19 Dec - 04 Jan	Azul Airlines
22 Dec - 05 Jan	Azul Airlines
06 Dec - 22 Dec	LATAM Airlines Group
22 Dec - 04 Jan	Azul Airlines
22 Dec - 03 Jan	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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Rio De Janeiro to London in December from 832€

Return flights