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

One-Way flights

02 Sep	Aer Lingus	direct
01 Sep	Aer Lingus	direct
03 Sep	Aer Lingus	direct
06 Sep	Aer Lingus	direct
05 Sep	Aer Lingus	direct
15 Sep	Aer Lingus	direct
04 Sep	Aer Lingus	direct
20 Sep	Aer Lingus	direct
25 Sep	Aer Lingus	direct
22 Sep	Aer Lingus	direct

Also check the deals for return flights from Paris 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 one-way flights from Paris to Dublin in September from 62€

One-Way flights