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

Return flights

05 Dec - 20 Dec	Turkish Airlines
01 Dec - 15 Dec	Turkish Airlines
01 Dec - 31 Jan	Turkish Airlines
05 Dec - 12 Dec	Turkish Airlines
10 Dec - 27 Dec	Turkish Airlines
29 Dec - 21 Jan	SWISS
26 Dec - 09 Jan	AJet
23 Dec - 31 Jan	SWISS
30 Dec - 06 Jan	Qatar Airways
20 Dec - 27 Dec	AJet
21 Dec - 05 Jan	Ryanair
22 Dec - 31 Jan	Turkish Airlines
25 Dec - 23 Jan	Turkish Airlines
14 Dec - 11 Jan	Qatar Airways
29 Dec - 12 Jan	Turkish Airlines
20 Dec - 30 Dec	LOT
19 Dec - 26 Dec	SriLankan Airlines
19 Dec - 30 Dec	IndiGo

Also check the deals for one-way flights from Brussels 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 Brussels to Colombo in December from $689

Return flights