Mexican low-cost carrier Volaris has firmed up an order for 44 Airbus A320 aircraft, comprising 30 A320neos and 14 A320s.
The airline, which first signed a provisional agreement for the aircraft in November 2011, will announce its engine selections at a later date.
Airbus said the order is the single largest commercial aircraft order placed by a Mexican carrier.
"The new airplanes will let us strengthen our low price strategy to benefit a larger number of Mexicans, while their fuel efficiency and reliability will allow our fleet, the youngest in the country, to be even more friendly to the Mexican skies," said Volaris CEO Enrique Beltranena.
Volaris currently operates 34 Airbus aircraft and has a backlog of 58, including the new orders.