Mexican low-fare carrier Volaris has signed a purchase agreement for 30 Airbus A320neos and 14 A320s, Airbus announced today. The deal amounts to the largest single commercial aircraft order ever by an airline in Mexico, according to Airbus. Volaris, also the first airline in the country to order the A320neo, plans to announce its engine selections for the aircraft at a later date.

Since starting operations in 2006, Volaris has become one of the top three airlines in Mexico. The addition of 44 A320s will more than double the airline’s all-Airbus fleet to support further expansion and fleet-renewal plans. The airline now operates 34 Airbus aircraft and has 58 more on order.