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

Return flights

11 Dec - 29 Dec	KLM
11 Dec - 27 Dec	KLM
11 Dec - 28 Dec	KLM
07 Dec - 21 Dec	Etihad Airways
07 Dec - 25 Dec	Etihad Airways
07 Dec - 15 Dec	Etihad Airways
07 Dec - 18 Dec	Etihad Airways
10 Dec - 17 Dec	SWISS
10 Dec - 20 Dec	SWISS
06 Dec - 19 Dec	SWISS
11 Dec - 03 Jan	KLM
07 Dec - 07 Jan	Etihad Airways
09 Dec - 02 Jan	SWISS
01 Dec - 03 Jan	Qatar Airways
31 Dec - 07 Jan	Etihad Airways
22 Dec - 08 Jan	Air Canada
23 Dec - 08 Jan	Air Canada
25 Dec - 08 Jan	Air Canada
20 Dec - 08 Jan	Air Canada
20 Dec - 06 Jan	Air Canada

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

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 December from 614€

Return flights