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

Return flights

04 Dec - 06 Dec	SWISS
14 Dec - 18 Dec	Austrian Airlines
05 Dec - 07 Dec	Aer Lingus
06 Dec - 09 Dec	Austrian Airlines
12 Dec - 14 Dec	Aer Lingus
05 Dec - 06 Dec	LOT
14 Dec - 29 Dec	Austrian Airlines
17 Dec - 26 Dec	LOT
13 Dec - 03 Jan	Austrian Airlines
13 Dec - 15 Dec	Aer Lingus
11 Dec - 14 Dec	Austrian Airlines
14 Dec - 04 Jan	Austrian Airlines

Also check the deals for one-way flights from London to Kosice 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 Kosice in December from 172€

Return flights