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

Return flights

04 Aug - 20 Aug	Air Canada
13 Aug - 22 Aug	Delta
13 Aug - 20 Aug	Finnair
24 Aug - 04 Sep	Air France
27 Aug - 03 Sep	Air Canada
25 Aug - 01 Sep	Delta
31 Aug - 07 Sep	Delta
28 Aug - 05 Sep	United
14 Aug - 18 Aug	Finnair
28 Aug - 31 Aug	American Airlines
28 Aug - 06 Sep	Frontier Airlines
07 Aug - 14 Aug	Aer Lingus
23 Aug - 30 Aug	United
11 Aug - 18 Aug	United
29 Aug - 05 Sep	Aer Lingus
21 Aug - 28 Aug	United
15 Aug - 22 Aug	United

Also check the deals for one-way flights from Phoenix 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 Phoenix to Dublin in August from 395€

Return flights