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

Return flights

03 Apr - 21 Apr	SWISS
18 Apr - 21 Apr	SWISS
28 Apr - 05 May	SWISS
29 Apr - 05 May	SWISS
10 Apr - 13 Apr	SWISS
28 Apr - 04 May	SWISS
29 Apr - 04 May	SWISS
02 Apr - 06 Apr	KLM
16 Apr - 19 Apr	KLM
23 Apr - 30 Apr	KLM
19 Apr - 23 Apr	KLM
30 Apr - 04 May	KLM
30 Apr - 03 May	KLM
30 Apr - 05 May	SWISS
25 Apr - 29 Apr	KLM
11 Apr - 16 Apr	KLM
24 Apr - 26 Apr	SWISS

Also check the deals for one-way flights from London to Copenhagen 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 Copenhagen in April from $257

Return flights