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

Return flights

01 Apr - 06 Apr	KLM
25 Apr - 28 Apr	KLM
23 Apr - 29 Apr	KLM
28 Apr - 05 May	KLM
30 Apr - 04 May	KLM
30 Apr - 05 May	KLM
30 Apr - 02 May	KLM
09 Apr - 13 Apr	KLM
17 Apr - 20 Apr	KLM
03 Apr - 08 Apr	SWISS
24 Apr - 28 Apr	SWISS
27 Apr - 30 Apr	KLM
03 Apr - 06 Apr	KLM
30 Apr - 06 May	KLM
05 Apr - 08 Apr	KLM
27 Apr - 03 May	SWISS
29 Apr - 01 May	KLM

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

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 April from $261

Return flights