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

Return flights

01 Dec - 08 Dec	Air France
04 Dec - 08 Dec	Air France
01 Dec - 07 Dec	Air France
01 Dec - 28 Jan	Royal Air Maroc
02 Dec - 07 Dec	British Airways
02 Dec - 09 Dec	British Airways
01 Dec - 10 Dec	Royal Air Maroc
03 Dec - 10 Dec	Air Canada
01 Dec - 09 Dec	Air France
03 Dec - 07 Dec	LATAM Airlines Group
07 Dec - 25 Jan	British Airways
04 Dec - 09 Dec	Air France
30 Dec - 27 Jan	Avianca
04 Dec - 28 Jan	Air France
30 Dec - 30 Jan	British Airways
05 Dec - 31 Jan	TAP
30 Dec - 31 Jan	TAP
06 Dec - 26 Jan	Delta
25 Dec - 24 Jan	Delta
31 Dec - 18 Jan	Delta

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 675€

Return flights