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

Return flights

10 Dec - 14 Dec	Ryanair
04 Dec - 08 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
09 Dec - 14 Dec	Pegasus Airlines
13 Dec - 16 Dec	Ryanair
26 Dec - 05 Jan	Ryanair
28 Dec - 02 Jan	Ryanair
26 Dec - 04 Jan	Ryanair
31 Dec - 03 Jan	Ryanair
26 Dec - 02 Jan	Ryanair
18 Dec - 21 Dec	Ryanair
27 Dec - 02 Jan	Ryanair
29 Dec - 03 Jan	Ryanair
22 Dec - 26 Dec	Ryanair
26 Dec - 03 Jan	Ryanair
20 Dec - 27 Dec	Ryanair
08 Dec - 13 Dec	Ryanair
27 Dec - 03 Jan	Ryanair
06 Dec - 09 Dec	Ryanair
24 Dec - 01 Jan	easyJet

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

Cheap car rent in Ljubljana

Cheapest return flights from London to Ljubljana in December from 245€

Return flights