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

Return flights

01 Dec - 06 Dec	Croatia Airlines
01 Dec - 08 Dec	Croatia Airlines
17 Dec - 20 Dec	Croatia Airlines
14 Dec - 17 Dec	Croatia Airlines
29 Dec - 04 Jan	Croatia Airlines
19 Dec - 21 Dec	Croatia Airlines
28 Dec - 04 Jan	Croatia Airlines
05 Dec - 07 Dec	Croatia Airlines
08 Dec - 13 Dec	Croatia Airlines
05 Dec - 08 Dec	Croatia Airlines
11 Dec - 14 Dec	Croatia Airlines
27 Dec - 04 Jan	KLM

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 242€

Return flights