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

Return flights

03 Dec - 13 Dec	Etihad Airways
01 Dec - 12 Dec	Qatar Airways
01 Dec - 28 Dec	Qatar Airways
01 Dec - 07 Dec	Qatar Airways
06 Dec - 20 Dec	IndiGo
03 Dec - 07 Dec	Etihad Airways
06 Dec - 13 Dec	IndiGo
08 Dec - 14 Dec	Etihad Airways
31 Dec - 12 Jan	Aer Lingus
30 Dec - 20 Jan	IndiGo
27 Dec - 14 Jan	IndiGo
27 Dec - 11 Jan	IndiGo
28 Dec - 12 Jan	IndiGo
27 Dec - 12 Jan	IndiGo
27 Dec - 13 Jan	IndiGo
15 Dec - 24 Jan	Etihad Airways
30 Dec - 12 Jan	Aer Lingus
28 Dec - 11 Jan	Aer Lingus
24 Dec - 31 Dec	Qatar Airways
13 Dec - 28 Dec	IndiGo

Also check the deals for one-way flights from Dublin 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 Dublin to Colombo in December from 736€

Return flights