AirHint found the following cheapest return flights from London (STN) to Cluj-napoca (CLJ) in December 2025 (see full year).

Return flights

04 Dec - 07 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
06 Dec - 09 Dec	Ryanair
28 Dec - 02 Jan	Ryanair	direct
28 Dec - 11 Jan	Ryanair	direct
27 Dec - 02 Jan	Ryanair
18 Dec - 30 Dec	Ryanair
19 Dec - 29 Dec	Ryanair
18 Dec - 29 Dec	Ryanair
20 Dec - 28 Dec	Ryanair
20 Dec - 29 Dec	Ryanair
19 Dec - 04 Jan	Ryanair
20 Dec - 02 Jan	Ryanair
24 Dec - 04 Jan	Ryanair
22 Dec - 02 Jan	Ryanair
22 Dec - 05 Jan	Ryanair
21 Dec - 04 Jan	Ryanair
19 Dec - 28 Dec	Ryanair	direct
19 Dec - 02 Jan	Ryanair	direct

Also check the deals for one-way flights from London to Cluj-napoca 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 London to Cluj-napoca in December from 109€

Return flights