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

Return flights

06 Dec - 07 Dec	Ryanair	direct
12 Dec - 14 Dec	Aer Lingus	direct
05 Dec - 08 Dec	Aer Lingus
13 Dec - 14 Dec	Ryanair	direct
08 Dec - 10 Dec	easyJet
26 Dec - 03 Jan	easyJet
05 Dec - 09 Dec	Aer Lingus
26 Dec - 03 Jan	Aer Lingus	direct
05 Dec - 07 Dec	Ryanair
28 Dec - 04 Jan	Aer Lingus	direct
05 Dec - 07 Dec	Aer Lingus	direct
29 Dec - 03 Jan	Aer Lingus	direct
06 Dec - 09 Dec	Ryanair
05 Dec - 08 Dec	Ryanair	direct
30 Dec - 04 Jan	KLM
23 Dec - 02 Jan	KLM
30 Dec - 02 Jan	KLM
30 Dec - 04 Jan	Ryanair	direct
30 Dec - 02 Jan	Ryanair	direct
23 Dec - 02 Jan	Ryanair	direct

Also check the deals for one-way flights from Prague 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 Prague to Dublin in December from 103€

Return flights