AirHint found the following cheapest return flights from Colombo (CMB) to London (LGW) in December 2025 (see full year).

Return flights

15 Dec - 15 Jan	Air Arabia
12 Dec - 12 Jan	Air Arabia
25 Dec - 03 Jan	Air Arabia
23 Dec - 03 Jan	Air Arabia
22 Dec - 15 Jan	Air Arabia
07 Dec - 03 Jan	Air Arabia
22 Dec - 01 Jan	Air Arabia
22 Dec - 02 Jan	Air Arabia
19 Dec - 27 Dec	Air Arabia
25 Dec - 29 Dec	Etihad Airways
22 Dec - 29 Dec	Air Arabia
20 Dec - 27 Dec	Etihad Airways
13 Dec - 27 Dec	Etihad Airways
22 Dec - 28 Dec	Air Arabia
15 Dec - 22 Dec	Air Arabia
18 Dec - 29 Dec	Air Arabia
16 Dec - 20 Jan	Air Arabia
13 Dec - 31 Dec	Gulf Air
09 Dec - 16 Dec	Etihad Airways
24 Dec - 11 Jan	Qatar Airways

Also check the deals for one-way flights from Colombo to London 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 Colombo to London in December from 473€

Return flights