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

Return flights

10 Sep - 22 Sep	Air Canada
14 Sep - 23 Sep	Finnair
01 Sep - 17 Sep	Air France	direct
07 Sep - 16 Sep	Finnair
14 Sep - 23 Sep	Air France	direct
01 Sep - 10 Sep	Air France	direct
14 Sep - 25 Sep	Air France	direct
10 Sep - 31 Oct	Delta
09 Sep - 23 Sep	Delta
01 Sep - 08 Sep	jetBlue
07 Sep - 27 Sep	KLM
10 Sep - 31 Oct	Aer Lingus	direct
28 Sep - 31 Oct	Air France	direct
10 Sep - 12 Oct	Aer Lingus	direct
22 Sep - 02 Oct	Finnair
29 Sep - 06 Oct	Air France	direct
22 Sep - 06 Oct	Air France	direct
18 Sep - 02 Oct	Delta	direct
28 Sep - 12 Oct	Delta	direct
15 Sep - 11 Oct	Air France	direct

Also check the deals for one-way flights from New York 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from New York to Dublin in September from 292€

Return flights