Cheapest return flights from Portland to Dublin in September from 399€

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

Return flights

08 Sep - 16 Sep Iberia
05 Sep - 12 Sep Air Canada
13 Sep - 03 Oct Iberia
04 Sep - 21 Sep United
12 Sep - 20 Sep United
29 Sep - 06 Oct Alaska Airlines
02 Sep - 16 Sep Iberia
15 Sep - 11 Oct United
29 Sep - 25 Oct United
08 Sep - 13 Sep Air France
13 Sep - 30 Sep Delta

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

Skyscanner

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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