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

Return flights

01 Dec - 08 Dec	Air Canada
01 Dec - 10 Dec	Air Canada
01 Dec - 07 Dec	Air Canada
06 Dec - 02 Jan	Air Canada
02 Dec - 14 Dec	Lufthansa
01 Dec - 16 Dec	British Airways
07 Dec - 16 Dec	British Airways
08 Dec - 16 Dec	British Airways
09 Dec - 16 Dec	British Airways
06 Dec - 13 Dec	British Airways
11 Dec - 26 Dec	British Airways
07 Dec - 06 Jan	Lufthansa
11 Dec - 03 Jan	British Airways
14 Dec - 03 Jan	Iberia
14 Dec - 06 Jan	Lufthansa
07 Dec - 04 Jan	British Airways
01 Dec - 02 Jan	British Airways
14 Dec - 01 Jan	Iberia
07 Dec - 02 Jan	Iberia
20 Dec - 03 Jan	Iberia

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 650€

Return flights