AirHint found the following cheapest return flights from Seattle (SEA) to Dublin (DUB) in June 2026 (see full year).
Return flights
| 10 Jun - 17 Jun | Air Canada | ||
| 29 Jun - 20 Jul | Finnair | ||
| 15 Jun - 11 Jul | United | ||
| 18 Jun - 07 Jul | WestJet |
Also check the deals for one-way flights from Seattle to Dublin in June.
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