The AirAsia deal, worth the equivalent of 11.3 billion euros at list prices, was unveiled on the second day of the Farnborough airshow by its chief executive officer Tony Fernandes and Airbus president and CEO Fabrice Bregier.
AirAsia, the region's biggest budget carrier by fleet size, added the fuel-efficient A321neo would seat up to 240 passengers in a single class layout, while enjoying greater capacity and the lowest operating costs in the single aisle category.
"We would like to congratulate Airbus for producing the state-of-the-art A321neo aircraft that meets our requirements for efficient operations."
Major airlines typically demand steep discounts when ordering large amounts of aircraft.
"We are extremely pleased to receive this additional order from AirAsia," added Bregier.
"This is another strong endorsement for largest member of our single aisle family, which is now the clear market leader in the 200 plus seat category.