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

Return flights

10 Aug - 21 Aug	Air Canada
12 Aug - 21 Aug	Air Canada
22 Aug - 30 Aug	Lufthansa
27 Aug - 02 Sep	Air Canada
24 Aug - 02 Sep	Lufthansa
22 Aug - 02 Sep	Lufthansa
05 Aug - 28 Aug	Air Canada
25 Aug - 02 Sep	Lufthansa
23 Aug - 02 Sep	Lufthansa
10 Aug - 08 Sep	Air Canada
24 Aug - 14 Sep	Lufthansa
25 Aug - 14 Sep	Air Canada
24 Aug - 03 Sep	Lufthansa
27 Aug - 14 Sep	Lufthansa
11 Aug - 20 Aug	United
06 Aug - 22 Aug	United
13 Aug - 22 Aug	United
05 Aug - 12 Aug	Air Canada
12 Aug - 22 Aug	United
05 Aug - 26 Aug	Delta

Also check the deals for one-way flights from New York to Dublin in August.

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 New York to Dublin in August from $315

Return flights