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

Return flights

29 Oct - 04 Nov	KLM
27 Oct - 17 Nov	KLM
06 Oct - 12 Oct	KLM
06 Oct - 19 Oct	KLM
20 Oct - 17 Nov	KLM
23 Oct - 30 Oct	KLM
19 Oct - 06 Nov	KLM
29 Oct - 05 Nov	KLM
31 Oct - 17 Nov	KLM
08 Oct - 23 Oct	KLM
04 Oct - 16 Oct	KLM
07 Oct - 23 Oct	KLM
04 Oct - 19 Oct	KLM
04 Oct - 14 Oct	KLM
04 Oct - 30 Oct	KLM
20 Oct - 18 Nov	KLM
13 Oct - 11 Nov	KLM
26 Oct - 30 Nov	KLM
29 Oct - 16 Nov	KLM
14 Oct - 28 Oct	KLM

Also check the deals for one-way flights from London to Jakarta in October.

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 October from 620€

Return flights