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

Return flights

08 Dec - 15 Dec	Turkish Airlines
04 Dec - 13 Dec	Air France
23 Dec - 13 Jan	Royal Air Maroc
10 Dec - 30 Dec	Air Canada
08 Dec - 30 Dec	Air Canada
10 Dec - 20 Dec	Air Canada
28 Dec - 06 Jan	Turkish Airlines
28 Dec - 07 Jan	Turkish Airlines
08 Dec - 05 Jan	Turkish Airlines
28 Dec - 13 Jan	KLM
15 Dec - 22 Dec	Iberia
04 Dec - 11 Jan	Air France
01 Dec - 03 Jan	Turkish Airlines
29 Dec - 03 Jan	Turkish Airlines
09 Dec - 03 Jan	Turkish Airlines
24 Dec - 31 Dec	TAP
14 Dec - 21 Dec	Lufthansa
12 Dec - 29 Dec	Iberia
25 Dec - 09 Jan	Iberia
01 Dec - 08 Dec	Iberia

Also check the deals for one-way flights from London to Sao Paulo 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 London to Sao Paulo in December from $939

Return flights