AirHint found the following cheapest return flights from Southampton (SOU) to Berlin (BER) in December 2025 (see full year).

Return flights

15 Dec - 18 Dec	easyJet
15 Dec - 17 Dec	easyJet
19 Dec - 23 Dec	easyJet
12 Dec - 14 Dec	easyJet
05 Dec - 07 Dec	Aer Lingus
08 Dec - 08 Dec	Aer Lingus
28 Dec - 02 Jan	KLM
05 Dec - 19 Dec	KLM
19 Dec - 19 Dec	easyJet

Also check the deals for one-way flights from Southampton to Berlin 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 Southampton to Berlin in December from $163

Return flights