Porter Airlines is buying three more turboprop planes from Bombardier.

The airplane manufacturer confirmed the deal for three Q400 planes on Tuesday, at the beginning of the Farnborough air show in the United Kingdom.

The sale is worth an estimated $93 million at the retail price, with the first two planes of the order to be delivered this year.

Porter only flies Q400 turboprops, and will have 29 planes in its fleet when these three planes are delivered.