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

Return flights

09 Dec - 20 Jan	Ryanair
02 Dec - 08 Dec	Ryanair
15 Dec - 14 Jan	Ryanair
03 Dec - 22 Jan	Ryanair
16 Dec - 20 Jan	Ryanair
15 Dec - 28 Jan	Ryanair
05 Dec - 31 Jan	Ryanair
04 Dec - 27 Jan	Ryanair
16 Dec - 14 Jan	Ryanair
05 Dec - 30 Jan	Ryanair
31 Dec - 14 Jan	Ryanair
01 Dec - 07 Dec	Ryanair
02 Dec - 07 Dec	Ryanair
12 Dec - 19 Dec	Ryanair
15 Dec - 31 Dec	Ryanair
15 Dec - 18 Dec	Ryanair
13 Dec - 28 Dec	Ryanair
11 Dec - 28 Dec	Ryanair
21 Dec - 31 Dec	Ryanair
09 Dec - 26 Dec	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 830€

Return flights