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

Return flights

02 Dec - 11 Dec	Air China
11 Dec - 04 Jan	Aegean Airlines
04 Dec - 11 Dec	Air China
10 Dec - 10 Jan	Vueling Airlines
01 Dec - 14 Dec	China Southern
10 Dec - 09 Jan	Vueling Airlines
01 Dec - 10 Dec	Etihad Airways
02 Dec - 14 Dec	China Southern
01 Dec - 21 Dec	China Southern
02 Dec - 12 Dec	China Southern
06 Dec - 31 Dec	Saudia
06 Dec - 30 Dec	Saudia
06 Dec - 21 Dec	Saudia
25 Dec - 18 Jan	China Southern
29 Dec - 19 Jan	China Southern
29 Dec - 12 Jan	Saudia
07 Dec - 06 Jan	Saudia
11 Dec - 14 Jan	Aegean Airlines
09 Dec - 14 Jan	Lufthansa
08 Dec - 14 Jan	Brussels Airlines

Also check the deals for one-way flights from London to Jakarta 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 Jakarta in December from 508€

Return flights