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

Return flights

09 Dec - 16 Dec	Ryanair
11 Dec - 24 Dec	Ryanair
13 Dec - 28 Dec	Ryanair
10 Dec - 17 Dec	Ryanair
31 Dec - 16 Jan	Ryanair
07 Dec - 21 Dec	Ryanair
08 Dec - 22 Dec	Ryanair
31 Dec - 30 Jan	Ryanair
30 Dec - 19 Jan	Ryanair
07 Dec - 20 Dec	Ryanair
30 Dec - 08 Jan	Ryanair
30 Dec - 13 Jan	Ryanair
30 Dec - 09 Jan	Ryanair
16 Dec - 20 Jan	Ryanair
30 Dec - 10 Jan	Ryanair
27 Dec - 16 Jan	Ryanair
12 Dec - 07 Jan	Ryanair
22 Dec - 28 Dec	Ryanair
14 Dec - 22 Dec	Aer Lingus
17 Dec - 21 Dec	Pegasus Airlines

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 547€

Return flights