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

Return flights

31 Dec - 07 Jan	SWISS
31 Dec - 10 Jan	KLM
19 Dec - 10 Jan	Iberia
31 Dec - 08 Jan	SWISS
26 Dec - 29 Dec	SWISS
24 Dec - 31 Dec	SWISS
24 Dec - 29 Dec	SWISS
23 Dec - 01 Jan	SWISS
24 Dec - 30 Dec	KLM
17 Dec - 02 Jan	SWISS
24 Dec - 27 Dec	KLM
16 Dec - 18 Dec	KLM
17 Dec - 22 Dec	ITA Airways
21 Dec - 29 Dec	KLM
19 Dec - 23 Dec	KLM
24 Dec - 01 Jan	SWISS
15 Dec - 16 Dec	ITA Airways
30 Dec - 05 Jan	ITA Airways
26 Dec - 03 Jan	ITA Airways
24 Dec - 02 Jan	SWISS

Also check the deals for one-way flights from London to Split 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 Split in December from $351

Return flights