AirHint found the following cheapest return flights from London (LCY) to Prague (PRG) in January 2026 (see full year).

Return flights

05 Jan - 08 Jan	KLM
01 Jan - 06 Jan	KLM
06 Jan - 09 Jan	KLM
20 Jan - 29 Jan	KLM
06 Jan - 10 Jan	KLM
10 Jan - 16 Jan	KLM
02 Jan - 06 Jan	KLM
20 Jan - 23 Jan	KLM
13 Jan - 16 Jan	KLM
26 Jan - 29 Jan	KLM
28 Jan - 07 Feb	KLM
28 Jan - 02 Feb	KLM
30 Jan - 02 Feb	KLM
31 Jan - 02 Feb	KLM
30 Jan - 03 Feb	KLM
30 Jan - 08 Feb	SWISS
20 Jan - 01 Feb	KLM
29 Jan - 02 Feb	Luxair
29 Jan - 05 Feb	KLM
31 Jan - 01 Feb	KLM

Also check the deals for one-way flights from London to Prague in January.

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 Prague in January from 205€

Return flights