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

Return flights

10 Dec - 17 Dec	SWISS
26 Dec - 12 Jan	SWISS
26 Dec - 14 Jan	SWISS
31 Dec - 07 Jan	SWISS
01 Dec - 15 Dec	SWISS
26 Dec - 31 Dec	SWISS
17 Dec - 07 Jan	SWISS
24 Dec - 12 Jan	Lufthansa
04 Dec - 06 Dec	Air Serbia
06 Dec - 08 Dec	Lufthansa
13 Dec - 14 Dec	Croatia Airlines
11 Dec - 18 Dec	Lufthansa
02 Dec - 16 Dec	SWISS
27 Dec - 09 Jan	Croatia Airlines
31 Dec - 06 Jan	Eurowings
27 Dec - 07 Jan	Austrian Airlines
04 Dec - 16 Dec	Air Serbia
09 Dec - 12 Dec	SWISS
30 Dec - 06 Jan	Lufthansa
26 Dec - 05 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.

Book a cheap hotel in Split

Cheap car rent in Split

Cheapest return flights from London to Split in December from 166€

Return flights