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

Return flights

31 Mar - 21 Apr	SWISS
06 Mar - 22 Mar	SWISS
12 Mar - 31 Mar	SWISS
05 Mar - 08 Mar	SWISS
20 Mar - 23 Mar	SWISS
19 Mar - 23 Mar	SWISS
13 Mar - 16 Mar	SWISS
13 Mar - 15 Mar	SWISS
12 Mar - 14 Mar	SWISS
12 Mar - 15 Mar	SWISS
20 Mar - 22 Mar	SWISS
16 Mar - 13 Apr	KLM
30 Mar - 06 Apr	KLM
30 Mar - 03 Apr	KLM
28 Mar - 06 Apr	KLM
28 Mar - 01 Apr	KLM
30 Mar - 11 Apr	SWISS
28 Mar - 11 Apr	SWISS
31 Mar - 04 Apr	KLM

Also check the deals for one-way flights from London to Copenhagen in March.

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 March from 204€

Return flights