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

Return flights

28 Dec - 27 Jan	KLM	direct
24 Dec - 08 Jan	KLM	direct
26 Dec - 11 Jan	KLM	direct
16 Dec - 04 Jan	KLM	direct
10 Dec - 14 Dec	KLM	direct
26 Dec - 30 Dec	KLM	direct
30 Dec - 03 Jan	KLM	direct
31 Dec - 03 Jan	KLM	direct
31 Dec - 04 Jan	KLM	direct
08 Dec - 25 Jan	KLM	direct
30 Dec - 02 Jan	KLM	direct
28 Dec - 01 Jan	KLM	direct
03 Dec - 07 Dec	KLM	direct
10 Dec - 16 Dec	KLM	direct
26 Dec - 29 Dec	KLM	direct
26 Dec - 28 Dec	KLM	direct
01 Dec - 31 Dec	KLM	direct
04 Dec - 07 Dec	KLM	direct
04 Dec - 08 Dec	KLM	direct
24 Dec - 28 Dec	KLM	direct

Also check the deals for one-way flights from London to Amsterdam 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 Amsterdam in December from 142€

Return flights