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

Return flights

02 Dec - 09 Dec	Ryanair
02 Dec - 07 Dec	Ryanair
01 Dec - 06 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
01 Dec - 09 Dec	Ryanair
04 Dec - 09 Dec	Ryanair
01 Dec - 14 Dec	Ryanair
02 Dec - 10 Dec	Ryanair
05 Dec - 07 Dec	Ryanair
01 Dec - 12 Dec	Ryanair
09 Dec - 16 Jan	Royal Air Maroc
30 Dec - 25 Jan	Ryanair
28 Dec - 25 Jan	Ryanair
30 Dec - 22 Jan	Ryanair
29 Dec - 30 Jan	Ryanair
30 Dec - 20 Jan	Ryanair
09 Dec - 20 Jan	Royal Air Maroc
13 Dec - 26 Jan	Ryanair
29 Dec - 24 Jan	Ryanair
08 Dec - 18 Jan	Ryanair

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 $872

Return flights