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

Return flights

01 Dec - 10 Dec	easyJet
01 Dec - 07 Dec	easyJet
01 Dec - 08 Dec	TAP
03 Dec - 21 Jan	Royal Air Maroc
02 Dec - 09 Dec	Vueling Airlines
05 Dec - 07 Dec	TAP
01 Dec - 15 Dec	TAP
29 Dec - 24 Jan	TAP
07 Dec - 14 Dec	TAP
29 Dec - 26 Jan	TAP
05 Dec - 15 Dec	TAP
05 Dec - 16 Dec	TAP
31 Dec - 31 Jan	Air Europa
26 Dec - 27 Jan	TAP
24 Dec - 24 Jan	TAP
05 Dec - 17 Dec	TAP
01 Dec - 29 Jan	Air Europa
14 Dec - 21 Jan	Royal Air Maroc
10 Dec - 23 Jan	Royal Air Maroc
10 Dec - 21 Jan	Royal Air Maroc

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 633€

Return flights