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

Return flights

29 May - 02 Jun	KLM
28 May - 01 Jun	KLM
29 May - 01 Jun	KLM
01 May - 04 May	KLM
05 May - 06 Jun	KLM
22 May - 25 May	KLM
22 May - 23 May	KLM
21 May - 25 May	KLM
06 May - 10 May	KLM
01 May - 03 May	KLM
29 May - 31 May	SWISS
07 May - 10 May	KLM
14 May - 17 May	KLM
15 May - 17 May	KLM

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

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 May from 202€

Return flights