AirHint found the following cheapest return flights from London (LCY) to Vienna (VIE) in December 2025 (see full year).

Return flights

10 Dec - 15 Dec	SWISS
10 Dec - 14 Dec	SWISS
04 Dec - 07 Dec	SWISS
06 Dec - 12 Dec	SWISS
06 Dec - 15 Dec	SWISS
06 Dec - 11 Dec	SWISS
06 Dec - 13 Dec	SWISS
06 Dec - 07 Dec	SWISS
06 Dec - 08 Dec	SWISS
06 Dec - 09 Dec	SWISS
04 Dec - 08 Jan	SWISS
04 Dec - 11 Jan	SWISS
31 Dec - 08 Jan	SWISS
31 Dec - 07 Jan	SWISS
31 Dec - 06 Jan	SWISS
31 Dec - 09 Jan	SWISS
31 Dec - 14 Jan	SWISS
10 Dec - 06 Jan	SWISS
29 Dec - 12 Jan	Lufthansa
11 Dec - 07 Jan	SWISS

Also check the deals for one-way flights from London to Vienna 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 Vienna in December from 203€

Return flights