AirHint found the following cheapest return flights from Sao Paulo (GRU) to London (LGW) in December 2026 (see full year).

Return flights

16 Dec - 11 Jan	Royal Air Maroc
08 Dec - 15 Dec	Royal Air Maroc
06 Dec - 10 Jan	Royal Air Maroc
11 Dec - 10 Jan	Royal Air Maroc
02 Dec - 06 Dec	Air Europa
02 Dec - 09 Dec	Royal Air Maroc
11 Dec - 22 Jan	Royal Air Maroc
02 Dec - 15 Jan	Royal Air Maroc
16 Dec - 10 Jan	Royal Air Maroc
14 Dec - 31 Dec	Iberia
18 Dec - 13 Jan	Royal Air Maroc
10 Dec - 10 Jan	TAP
01 Dec - 15 Dec	TAP
10 Dec - 20 Dec	TAP
03 Dec - 20 Dec	TAP
27 Dec - 07 Jan	TAP
21 Dec - 27 Dec	LATAM Airlines Group
12 Dec - 11 Jan	Iberia
13 Dec - 29 Dec	Iberia
04 Dec - 21 Dec	TAP

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 675€

Return flights