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

Return flights

30 Sep - 08 Oct	Ryanair	direct
30 Sep - 04 Oct	Ryanair	direct
23 Sep - 08 Oct	easyJet
30 Sep - 05 Oct	Ryanair
23 Sep - 08 Oct	Ryanair	direct
30 Sep - 03 Oct	Ryanair
30 Sep - 03 Oct	Ryanair	direct
23 Sep - 24 Sep	easyJet
27 Sep - 07 Oct	Wizz Air UK
16 Sep - 24 Sep	easyJet
17 Sep - 22 Sep	Ryanair
17 Sep - 24 Sep	Ryanair
19 Sep - 23 Sep	Ryanair
17 Sep - 23 Sep	Ryanair
19 Sep - 24 Sep	Ryanair
18 Sep - 24 Sep	Ryanair
23 Sep - 24 Sep	Aer Lingus	direct
26 Sep - 28 Sep	Ryanair
29 Sep - 04 Oct	Ryanair
28 Sep - 04 Oct	Ryanair

Also check the deals for one-way flights from Prague to Dublin in September.

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 September from 62€

Return flights