Aer Arann and Aer Lingus started flying from Manchester to Shannon in Ireland on Thursday, four weeks after the new service was announced.
Aer Lingus Regional, operated by Aer Arann, will provide direct flights to Shannon from Manchester seven days a week.
Andrew Kelly, Aer Arann's corporate affairs director, said: "Today signifies a new chapter both for us and for our franchise partner, and indeed for Manchester as we celebrate the first flight to Shannon under this franchise agreement.
"We hope that over the coming months more and more passengers will take advantage of the choice, flexibility and convenience that this service has to offer" he added."
- Flights to Manchester with Aer Lingus Regional start from £29.99 one way including taxes. For further flight information and to make a booking visit http://www.aerlingus.com/