AirHint found the following cheapest return flights from Cardiff (CWL) to Hamburg (HAM) in December 2025 (see full year).

Return flights

24 Dec - 31 Dec	Ryanair
29 Dec - 01 Jan	Ryanair
19 Dec - 22 Dec	Ryanair
10 Dec - 13 Dec	Ryanair
30 Dec - 04 Jan	KLM
23 Dec - 04 Jan	KLM
30 Dec - 03 Jan	KLM
31 Dec - 03 Jan	KLM
29 Dec - 04 Jan	KLM
29 Dec - 03 Jan	KLM
17 Dec - 18 Dec	Aer Lingus
31 Dec - 01 Jan	KLM
10 Dec - 14 Dec	KLM
19 Dec - 21 Dec	KLM
08 Dec - 21 Dec	KLM
14 Dec - 16 Dec	KLM
08 Dec - 11 Dec	KLM
08 Dec - 10 Dec	KLM

Also check the deals for one-way flights from Cardiff to Hamburg 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 Cardiff to Hamburg in December from 118€

Return flights