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

Return flights

18 Apr - 22 Apr	KLM
13 Apr - 18 Apr	KLM
11 Apr - 19 Apr	KLM
17 Apr - 19 Apr	KLM
17 Apr - 30 May	KLM
25 Apr - 27 Apr	KLM
27 Apr - 02 May	KLM
30 Apr - 03 May	KLM
20 Apr - 24 Apr	KLM
08 Apr - 12 Apr	SWISS
10 Apr - 12 Apr	SWISS
03 Apr - 07 Apr	KLM
04 Apr - 06 Apr	KLM
24 Apr - 01 May	SWISS

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 204€

Return flights