AirHint found the following cheapest return flights from Sao Paulo (GRU) to London (STN) in December 2025 (see full year).

Return flights

05 Dec - 07 Dec	TAP
02 Dec - 07 Dec	TAP
01 Dec - 05 Dec	TAP
01 Dec - 31 Dec	TAP
04 Dec - 07 Dec	TAP
08 Dec - 12 Jan	LATAM Airlines Group
02 Dec - 11 Dec	TAP
05 Dec - 31 Dec	TAP
12 Dec - 02 Jan	LATAM Airlines Group
09 Dec - 19 Jan	Iberia
08 Dec - 18 Jan	Air Europa
10 Dec - 31 Jan	ITA Airways
09 Dec - 30 Dec	TAP
08 Dec - 20 Jan	LATAM Airlines Group
01 Dec - 02 Dec	LATAM Airlines Group
01 Dec - 08 Dec	TAP
11 Dec - 04 Jan	LATAM Airlines Group
08 Dec - 01 Jan	LATAM Airlines Group
08 Dec - 29 Jan	LATAM Airlines Group
08 Dec - 24 Jan	Air Europa

Also check the deals for one-way flights from Sao Paulo 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 Sao Paulo to London in December from 652€

Return flights