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

Return flights

10 Dec - 01 Jan	GOL Linhas Aéreas
04 Dec - 11 Dec	TAP
01 Dec - 03 Dec	Azul Airlines
24 Dec - 19 Jan	Lufthansa
30 Dec - 06 Jan	LATAM Airlines Group
08 Dec - 14 Dec	Azul Airlines
14 Dec - 30 Dec	GOL Linhas Aéreas
18 Dec - 05 Jan	LATAM Airlines Group
13 Dec - 29 Dec	SWISS
13 Dec - 27 Dec	LATAM Airlines Group
26 Dec - 13 Jan	TAP
22 Dec - 10 Jan	Azul Airlines
16 Dec - 12 Jan	Lufthansa
22 Dec - 09 Jan	Azul Airlines
15 Dec - 22 Dec	Lufthansa
29 Dec - 05 Jan	GOL Linhas Aéreas
10 Dec - 19 Dec	TAP

Also check the deals for one-way flights from Curitiba to London 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 Curitiba to London in December from 798€

Return flights