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

Return flights

03 Apr - 13 Apr	KLM
11 Apr - 13 Apr	KLM
14 Apr - 30 Apr	SWISS
08 Apr - 30 Apr	SWISS
15 Apr - 30 Apr	SWISS
07 Apr - 30 Apr	SWISS
15 Apr - 16 May	SWISS
29 Apr - 09 May	SWISS
03 Apr - 08 Apr	KLM
07 Apr - 22 Apr	KLM
22 Apr - 30 Apr	SWISS
30 Apr - 16 May	SWISS
28 Apr - 14 May	SWISS
03 Apr - 12 Apr	KLM
28 Apr - 12 May	KLM
17 Apr - 07 May	Lufthansa
24 Apr - 24 May	SWISS
24 Apr - 10 May	SWISS
28 Apr - 13 May	Lufthansa
20 Apr - 09 May	Lufthansa

Also check the deals for one-way flights from London to Colombo 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 Colombo in April from 737€

Return flights