Cheapest return flights from Portland to Dublin in August from $505

AirHint found the following cheapest return flights from Portland (PDX) to Dublin (DUB) in August 2026 (see full year).

Return flights

12 Aug - 26 Aug Delta
26 Aug - 02 Sep Air Canada
13 Aug - 20 Aug Air Canada
17 Aug - 24 Aug Air Canada
18 Aug - 25 Aug Air Canada
20 Aug - 27 Aug Air Canada
24 Aug - 31 Aug Air Canada
27 Aug - 03 Sep Air Canada
31 Aug - 07 Sep Air Canada
12 Aug - 19 Aug Air Canada
19 Aug - 26 Aug Air Canada
12 Aug - 21 Aug Delta
16 Aug - 23 Aug Air Canada
27 Aug - 04 Sep Lufthansa
25 Aug - 01 Sep Lufthansa
30 Aug - 06 Sep Delta
29 Aug - 05 Sep Delta
28 Aug - 04 Sep Air Canada

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

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