AirHint found the following cheapest return flights from London (STN) to Ljubljana (LJU) in December 2025 (see full year).

Return flights

14 Dec - 18 Dec	Ryanair
07 Dec - 09 Dec	Ryanair
14 Dec - 11 Jan	Ryanair
12 Dec - 16 Dec	Ryanair
07 Dec - 11 Dec	Ryanair
09 Dec - 11 Dec	Ryanair
08 Dec - 11 Dec	Ryanair
07 Dec - 10 Dec	Pegasus Airlines
08 Dec - 10 Dec	Ryanair
09 Dec - 12 Dec	Ryanair
11 Dec - 18 Dec	Pegasus Airlines
31 Dec - 04 Jan	Pegasus Airlines
19 Dec - 18 Jan	Ryanair
28 Dec - 01 Jan	Ryanair
20 Dec - 18 Jan	Ryanair
17 Dec - 05 Jan	Ryanair
27 Dec - 02 Jan	Ryanair
18 Dec - 05 Jan	Ryanair
30 Dec - 03 Jan	Ryanair
27 Dec - 03 Jan	Ryanair

Also check the deals for one-way flights from London to Ljubljana 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 Ljubljana

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Cheapest return flights from London to Ljubljana in December from $190

Return flights