Cheapest one-way flights from Seattle to Dublin in March from $261

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

One-Way flights

29 Mar Icelandair
31 Mar Icelandair
09 Mar Icelandair
16 Mar Alaska Airlines
22 Mar Alaska Airlines
21 Mar Alaska Airlines
13 Mar Alaska Airlines
01 Mar Hawaiian Airlines
11 Mar Alaska Airlines
09 Mar Aer Lingus direct

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

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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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