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

Return flights

06 Dec - 10 Jan	ITA Airways
10 Dec - 10 Jan	Avianca
11 Dec - 04 Jan	Avianca
02 Dec - 15 Jan	Avianca
02 Dec - 06 Dec	Avianca
02 Dec - 09 Dec	Air Canada
12 Dec - 02 Jan	Avianca
11 Dec - 10 Jan	Avianca
05 Dec - 26 Dec	Avianca
20 Dec - 27 Dec	LATAM Airlines Group	direct
16 Dec - 11 Jan	Air Canada
13 Dec - 29 Dec	British Airways
21 Dec - 27 Dec	LATAM Airlines Group	direct
12 Dec - 11 Jan	British Airways
04 Dec - 21 Dec	Avianca
10 Dec - 20 Dec	Avianca
11 Dec - 19 Dec	Avianca
01 Dec - 15 Dec	Avianca
14 Dec - 01 Jan	Air Canada
11 Dec - 22 Jan	British Airways

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 681€

Return flights