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

Return flights

29 Apr - 08 May	United
25 Apr - 03 May	United
28 Apr - 06 May	United
30 Apr - 08 May	United
22 Apr - 29 Apr	United
02 Apr - 10 Apr	United
07 Apr - 15 Apr	United
13 Apr - 21 Apr	United
15 Apr - 23 Apr	United
21 Apr - 29 Apr	United
03 Apr - 12 Apr	KLM
18 Apr - 25 Apr	Delta
19 Apr - 26 Apr	Delta
23 Apr - 30 Apr	Delta
29 Apr - 07 May	United
22 Apr - 05 May	Air Canada
23 Apr - 01 May	Delta
26 Apr - 04 May	Delta
27 Apr - 05 May	Delta
24 Apr - 02 May	Lufthansa

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 $462

Return flights