Cheapest one-way flights from Seattle to Dublin in April from $240

AirHint found the following cheapest one-way flights from Seattle (SEA) to Dublin (DUB) in April 2026 (see full year).

One-Way flights

18 Apr Icelandair
20 Apr Icelandair
12 Apr Icelandair
24 Apr Icelandair
11 Apr Hawaiian Airlines
22 Apr Icelandair
12 Apr Aer Lingus direct
20 Apr Aer Lingus direct
22 Apr Aer Lingus direct
06 Apr Aer Lingus direct

Also check the deals for return flights from Seattle to Dublin in April.

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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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