Cheapest one-way flights from Seattle to Dublin in September from 223€

AirHint found the following cheapest one-way flights from Seattle (SEA) to Dublin (DUB) in September 2025 (see full year).

One-Way flights

01 Sep Icelandair
04 Sep Icelandair
06 Sep Icelandair
03 Sep Icelandair
16 Sep Icelandair
05 Sep Icelandair
05 Sep Aer Lingus direct
06 Sep Aer Lingus direct
04 Sep Aer Lingus direct
22 Sep Aer Lingus direct

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

Skyscanner

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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