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

Return flights

01 Dec - 08 Dec	Ryanair
04 Dec - 08 Dec	Air Europa
02 Dec - 07 Dec	ITA Airways
06 Dec - 08 Dec	ITA Airways
02 Dec - 11 Dec	KLM
03 Dec - 10 Dec	Ryanair
02 Dec - 09 Dec	easyJet
05 Dec - 14 Dec	Vueling Airlines
01 Dec - 09 Dec	ITA Airways
01 Dec - 22 Jan	ITA Airways
01 Dec - 10 Dec	Ryanair
30 Dec - 27 Jan	Air Europa
31 Dec - 28 Jan	Air Europa
07 Dec - 25 Jan	Ryanair
04 Dec - 28 Jan	ITA Airways
30 Dec - 30 Jan	Royal Air Maroc
31 Dec - 26 Jan	Air Europa
31 Dec - 24 Jan	easyJet
28 Dec - 29 Jan	Air Europa
31 Dec - 30 Jan	Air Europa

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 570€

Return flights