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

Return flights

28 Jul - 07 Aug	KLM
28 Jul - 10 Aug	KLM
08 Jul - 17 Jul	SWISS
03 Jul - 08 Jul	SWISS
31 Jul - 03 Aug	SWISS
24 Jul - 27 Jul	SWISS
09 Jul - 15 Jul	SWISS
02 Jul - 04 Jul	KLM
16 Jul - 19 Jul	KLM
30 Jul - 02 Aug	KLM
11 Jul - 14 Jul	KLM
31 Jul - 02 Aug	SWISS
17 Jul - 19 Jul	KLM
02 Jul - 05 Jul	KLM
11 Jul - 18 Jul	KLM

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

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 July from $261

Return flights