US Airways will extend what are now seasonal flights between Philadelphia International Airport and Dublin, Ireland, to year-round service, four days a week, starting Oct. 28.

The airline said in a statement that it will operate flights throughout the winter from Philadelphia on Tuesdays, Thursdays, Saturdays and Sundays, and from Dublin on Mondays, Wednesdays, Fridays and Sundays. Seasonal flights to Shannon, Ireland, from spring through mid-fall, will continue to operate, the airline said.

US Airways said with the addition of Dublin, it will have year-round service between Philadelphia and 12 European cities. Earlier this year, it announced plans to start new flights to Athens, Greece; Brussels, Belgium; and Zurich, Switzerland.