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

Return flights

05 Aug - 12 Aug	KLM
02 Aug - 09 Aug	Air Serbia
09 Aug - 16 Aug	Air Serbia
21 Aug - 05 Sep	Etihad Airways
20 Aug - 10 Sep	Turkish Airlines
08 Aug - 26 Aug	Air Serbia
20 Aug - 11 Sep	Turkish Airlines
08 Aug - 29 Aug	Air Serbia
08 Aug - 24 Aug	LOT
02 Aug - 30 Aug	Air Serbia
08 Aug - 28 Aug	Air Serbia
23 Aug - 06 Sep	LOT
01 Aug - 15 Aug	Air Serbia
01 Aug - 29 Aug	Air Serbia
20 Aug - 17 Sep	Etihad Airways
20 Aug - 05 Sep	LOT
28 Aug - 14 Sep	SWISS
19 Aug - 09 Sep	SWISS
22 Aug - 13 Sep	SWISS
28 Aug - 15 Sep	Etihad Airways

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 685€

Return flights