The aircraft will be allocated among four airlines. Source: Airbus

Airbus and Phoenix-based Indigo Partners signed a Memorandum of Understanding for the purchase of 430 A320neo aircraft.

The deal is made up of 273 A320neos and 157 A321neos worth $49.5 billion at list prices.

The aircraft will be allocated among Frontier Airlines (United States), JetSMART (Chile), Volaris (Mexico) and Wizz Air (Hungary) upon completion of final purchase agreements between Airbus and the four airlines.

Airlines in the Indigo Partners group have previously placed orders for 427 A320 Family aircraft.

The airlines’ individual aircraft orders are as follows:

• Wizz — 72 A320neo, 74 A321neo

• Frontier —100 A320neo, 34 A321neo

• JetSMART — 56 A320neo, 14 A321neo

• Volaris — 46 A320neo, 34 A321neo

Engine selections will be made and announced at a later date.

Indigo Partners LLC, based in Phoenix, is a private equity fund focused on worldwide investments in air transportation.