AirHint found the following cheapest return flights from New York (LGA) to Dublin (DUB) in September 2026 (see full year).

Return flights

08 Sep - 16 Sep	Delta
06 Sep - 13 Sep	Delta
07 Sep - 14 Sep	Delta
08 Sep - 15 Sep	Delta
08 Sep - 14 Sep	Delta
15 Sep - 22 Sep	United
03 Sep - 17 Sep	Air Europa
09 Sep - 16 Sep	Delta
09 Sep - 14 Sep	Delta
02 Sep - 09 Sep	Delta
25 Sep - 02 Oct	Lufthansa

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 $367

Return flights