Cheapest return flights from Seattle to Dublin in May from 370€

AirHint found the following cheapest return flights from Seattle (SEA) to Dublin (DUB) in May 2026 (see full year).

Return flights

05 May - 12 May Icelandair
20 May - 27 May Icelandair
05 May - 12 May Aer Lingus direct
20 May - 27 May Aer Lingus direct
15 May - 29 May Lufthansa
15 May - 22 May Aer Lingus direct
15 May - 29 May Aer Lingus direct
27 May - 03 Jun Aer Lingus
10 May - 17 May Aer Lingus
30 May - 06 Jun Icelandair
25 May - 01 Jun Aer Lingus

Also check the deals for one-way flights from Seattle to Dublin in May.

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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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