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

Return flights

02 Dec - 06 Dec	Croatia Airlines
29 Dec - 02 Jan	SWISS
30 Dec - 04 Jan	Turkish Airlines
28 Dec - 03 Jan	Turkish Airlines
13 Dec - 16 Dec	Croatia Airlines
31 Dec - 03 Jan	SWISS
29 Dec - 03 Jan	SWISS
08 Dec - 11 Dec	Croatia Airlines
31 Dec - 04 Jan	SWISS
30 Dec - 03 Jan	Turkish Airlines
31 Dec - 02 Jan	SWISS
06 Dec - 10 Dec	Croatia Airlines
04 Dec - 08 Dec	Croatia Airlines
16 Dec - 21 Dec	Croatia Airlines
26 Dec - 30 Dec	Croatia Airlines
14 Dec - 16 Dec	Croatia Airlines

Also check the deals for one-way flights from Split to London 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 Split to London in December from $273

Return flights