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

Return flights

12 Dec - 14 Dec	Ryanair
11 Dec - 13 Dec	Ryanair
12 Dec - 15 Dec	Ryanair
04 Dec - 07 Dec	Ryanair
09 Dec - 11 Dec	Ryanair
09 Dec - 13 Dec	Ryanair
01 Dec - 07 Dec	Ryanair
04 Dec - 05 Dec	Ryanair
15 Dec - 13 Jan	airBaltic
11 Dec - 14 Dec	airBaltic
18 Dec - 22 Dec	airBaltic
22 Dec - 03 Jan	airBaltic
27 Dec - 01 Jan	Scandinavian Airlines
17 Dec - 04 Jan	airBaltic
29 Dec - 01 Jan	airBaltic
30 Dec - 04 Jan	Ryanair
30 Dec - 05 Jan	Finnair
30 Dec - 01 Jan	airBaltic
27 Dec - 01 Jan	Finnair	direct
30 Dec - 01 Jan	Finnair	direct

Also check the deals for one-way flights from Helsinki to Dublin 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 Helsinki to Dublin in December from 143€

Return flights