Cheapest return flights from Seattle to Dublin in March from $374

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

Return flights

27 Mar - 08 Apr Icelandair
10 Mar - 17 Mar Icelandair
05 Mar - 12 Mar Icelandair
25 Mar - 01 Apr Icelandair
30 Mar - 06 Apr Icelandair
15 Mar - 23 Mar British Airways
25 Mar - 01 Apr Aer Lingus direct
09 Mar - 22 Mar Aer Lingus direct
06 Mar - 18 Mar British Airways
06 Mar - 18 Mar Aer Lingus direct
18 Mar - 11 Apr British Airways
15 Mar - 22 Mar Aer Lingus direct
15 Mar - 23 Mar Aer Lingus direct
30 Mar - 06 Apr Aer Lingus direct
15 Mar - 21 Mar Air Canada
16 Mar - 11 Apr Air Canada
27 Mar - 08 Apr Aer Lingus direct

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

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