Shannon, Ireland → Seattle, USA

June 4, 2026

**UPDATE 2** ⚠️ ERROR FARE ⚠️ Open-jaw Business Class from Europe to the US & Canada from only €673 roundtrip (lie-flat seats)

Error Fare open-jaw Business Class flights from Europe to the US and Canada from only €673 roundtrip.

February 11, 2023

Shannon, Ireland to Seattle, USA for only €332 roundtrip (Mar dates)

Cheap flights from Shannon, Ireland to Seattle, USA for only €332 roundtrip with Aer Lingus and Alaska Airlines.

May 18, 2019

SUMMER: Ireland to many US cities from only €266 roundtrip

Summer flights from Dublin or Shannon, Ireland to many US cities from only €266 roundtrip with Air Canada, Lufthansa and United Airlines.