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

Return flights

08 Oct - 15 Oct	Air Canada
15 Oct - 22 Oct	Air Canada
29 Oct - 05 Nov	United
28 Oct - 04 Nov	United
14 Oct - 21 Oct	Air Canada
22 Oct - 29 Oct	Air Canada
07 Oct - 14 Oct	Air Canada
01 Oct - 08 Oct	Air Canada
31 Oct - 07 Nov	Air Canada
21 Oct - 28 Oct	Air Canada
26 Oct - 02 Nov	Air Canada
10 Oct - 17 Oct	Lufthansa
17 Oct - 24 Oct	Air Canada
09 Oct - 16 Oct	Lufthansa
27 Oct - 03 Nov	United
30 Oct - 06 Nov	KLM
25 Oct - 01 Nov	Air Canada

Also check the deals for one-way flights from Phoenix to Dublin in October.

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 October from 404€

Return flights