Cheapest return flights from Seattle to Dublin in March from $633

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

Return flights

29 Mar - 14 Apr Icelandair
09 Mar - 16 Mar KLM
08 Mar - 18 Mar Turkish Airlines
09 Mar - 19 Mar Turkish Airlines
09 Mar - 20 Mar Aer Lingus direct
08 Mar - 18 Mar Aer Lingus direct
23 Mar - 08 Apr Aer Lingus direct
11 Mar - 08 Apr Aer Lingus direct
16 Mar - 08 Apr Aer Lingus direct
29 Mar - 14 Apr Aer Lingus direct
18 Mar - 08 Apr Delta
04 Mar - 11 Mar Turkish Airlines
18 Mar - 15 Apr Alaska Airlines
17 Mar - 21 Mar Turkish Airlines
18 Mar - 12 Apr Alaska Airlines
08 Mar - 30 Mar Icelandair
29 Mar - 05 Apr Aer Lingus direct
22 Mar - 23 Mar Aer Lingus direct
18 Mar - 08 Apr Aer Lingus direct
15 Mar - 23 Mar Aer Lingus direct

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

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