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

Return flights

29 Aug - 13 Sep	SWISS
24 Aug - 12 Sep	SWISS
12 Aug - 25 Aug	SWISS
31 Aug - 13 Sep	KLM
09 Aug - 25 Aug	SWISS
12 Aug - 24 Aug	SWISS
30 Aug - 13 Sep	KLM
28 Aug - 06 Sep	SWISS
19 Aug - 02 Sep	SWISS
23 Aug - 12 Sep	KLM
12 Aug - 09 Sep	SWISS
18 Aug - 09 Sep	SWISS
27 Aug - 10 Sep	KLM
09 Aug - 24 Aug	SWISS
12 Aug - 31 Aug	SWISS
10 Aug - 31 Aug	KLM
11 Aug - 31 Aug	KLM
16 Aug - 31 Aug	KLM
12 Aug - 19 Aug	SWISS
20 Aug - 31 Aug	KLM

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 893€

Return flights