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

Return flights

06 Apr - 13 Apr	Air Canada
01 Apr - 09 Apr	Air Canada
04 Apr - 12 Apr	Air Canada
05 Apr - 13 Apr	Air Canada
30 Apr - 08 May	Air Canada
28 Apr - 06 May	Air Canada
28 Apr - 07 May	Air Canada
25 Apr - 03 May	Air Canada
01 Apr - 08 Apr	Air Canada
07 Apr - 14 Apr	Air Canada
08 Apr - 15 Apr	Air Canada
14 Apr - 21 Apr	Air Canada
15 Apr - 22 Apr	Air Canada
06 Apr - 14 Apr	Air Canada
27 Apr - 05 May	Air Canada
23 Apr - 01 May	Air France
26 Apr - 04 May	Air France
24 Apr - 02 May	United
29 Apr - 07 May	KLM
08 Apr - 02 May	United

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

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 Portland to Dublin in April from 378€

Return flights