Mostyn is a small village in Flintshire, Wales, and electoral ward lying on the estuary of the River Dee, located near the town of Holywell.Mostyn once served as a port from which ferries used to sail (until 2004) to Dublin on the Liverpool-Dublin route. Today, manufactured wings for the Airbus A380 aircraft leave Mostyn on the ship Ville De Bordeaux, after travelling down the River Dee by barge from the Airbus wing factory at Broughton, Flintshire.