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

Return flights

10 Mar - 19 Mar	SWISS
20 Mar - 15 Apr	KLM
13 Mar - 28 Mar	SWISS
10 Mar - 29 Mar	SWISS
11 Mar - 29 Mar	SWISS
12 Mar - 31 Mar	SWISS
11 Mar - 25 Mar	SWISS
03 Mar - 18 Mar	SWISS
12 Mar - 23 Mar	SWISS
06 Mar - 18 Mar	SWISS
04 Mar - 18 Mar	SWISS
13 Mar - 01 Apr	SWISS
14 Mar - 18 Apr	KLM
17 Mar - 23 Apr	Lufthansa
25 Mar - 01 Apr	SWISS
27 Mar - 14 Apr	KLM
19 Mar - 17 Apr	Lufthansa
20 Mar - 04 Apr	KLM
14 Mar - 19 Apr	KLM
30 Mar - 18 Apr	KLM

Also check the deals for one-way flights from London to Colombo 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 Colombo in March from $897

Return flights