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

Return flights

30 Sep - 06 Oct	Scandinavian Airlines
25 Sep - 30 Sep	Lufthansa
23 Sep - 14 Oct	Lufthansa
24 Sep - 18 Oct	Lufthansa
25 Sep - 02 Oct	Lufthansa
20 Sep - 22 Sep	Air Canada
23 Sep - 28 Sep	Air Canada
25 Sep - 28 Sep	Air Canada
20 Sep - 21 Sep	Air Canada
22 Sep - 06 Oct	Air Canada
22 Sep - 06 Oct	Lufthansa	direct
22 Sep - 05 Oct	Lufthansa	direct
24 Sep - 29 Sep	Air Canada
25 Sep - 05 Oct	Scandinavian Airlines
24 Sep - 03 Oct	Scandinavian Airlines
24 Sep - 07 Oct	Scandinavian Airlines
21 Sep - 28 Sep	Air Canada
27 Sep - 28 Sep	Air Canada
26 Sep - 30 Sep	Air Canada
27 Sep - 30 Sep	KLM

Also check the deals for one-way flights from Dublin to Newark 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 Dublin to Newark in September from 320€

Return flights