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

One-Way flights

24 Sep	Ryanair	direct
10 Sep	Ryanair	direct
23 Sep	Ryanair	direct
16 Sep	Ryanair	direct
15 Sep	Ryanair	direct
30 Sep	Ryanair	direct
17 Sep	Ryanair	direct
22 Sep	Ryanair	direct
26 Sep	Ryanair
18 Sep	Ryanair

Also check the deals for return flights from Dublin to Prague 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 one-way flights from Dublin to Prague in September from 30€

One-Way flights