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

Return flights

28 Aug - 29 Aug	KLM
18 Aug - 31 Aug	KLM
27 Aug - 31 Aug	KLM
28 Aug - 31 Aug	KLM
04 Aug - 24 Aug	KLM
09 Aug - 14 Aug	KLM
26 Aug - 02 Sep	SWISS
02 Aug - 06 Aug	KLM
10 Aug - 14 Aug	KLM
28 Aug - 02 Sep	KLM
19 Aug - 24 Aug	KLM
15 Aug - 22 Aug	KLM
31 Aug - 03 Sep	KLM
28 Aug - 05 Sep	KLM
30 Aug - 03 Sep	KLM
30 Aug - 02 Sep	KLM
23 Aug - 06 Sep	KLM

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

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 August from 218€

Return flights