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

Return flights

28 Aug - 15 Sep	Lufthansa
26 Aug - 09 Sep	SWISS
25 Aug - 09 Sep	SWISS
27 Aug - 09 Sep	SWISS
28 Aug - 10 Sep	SWISS
24 Aug - 06 Sep	Lufthansa
05 Aug - 06 Sep	SWISS
07 Aug - 10 Sep	SWISS
19 Aug - 02 Sep	SWISS
20 Aug - 25 Aug	Lufthansa
26 Aug - 03 Sep	Lufthansa
19 Aug - 26 Aug	SWISS
04 Aug - 25 Aug	SWISS
01 Aug - 30 Aug	KLM
13 Aug - 25 Aug	SWISS
07 Aug - 18 Aug	SWISS
06 Aug - 26 Aug	SWISS
11 Aug - 26 Aug	SWISS
03 Aug - 18 Aug	Lufthansa
19 Aug - 30 Aug	Lufthansa

Also check the deals for one-way flights from London to Colombo in August.

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 August from 770€

Return flights