Airbus has entered a memorandum of understanding (MoU) with US-based Indigo Partners’ four portfolio airlines for the $49.5bn sale of 430 new A320neo family aircraft.

The order includes 273 A320neos and 157 A321neo planes.

Following final purchase agreements and delivery, the aircraft will be distributed among Indigo Partners four airlines portfolio, including US-based ultra low-cost airlines Frontier Airlines, Chile’s JetSMART, Mexico’s Volaris and Hungary’s Wizz Air.

“Our airlines know that a great aircraft coupled with a great business plan will create value for our customers.”

Combined with an existing order for 427 Airbus A320 family aircraft, the latest deal will make Indigo Partners one of the largest Airbus single-aisle aircraft family customers in terms of order number.

Indigo Partners managing partner Bill Franke said: “This significant commitment for 430 additional aircraft underscores our optimistic view of the growth potential of our family of low-cost airlines, as well as our confidence in the A320neo family as a platform for that growth.

“Our airlines know that a great aircraft coupled with a great business plan will create value for our customers.”

In a separate development, UAE-based Golden Falcon Aviation, which exclusively supplies aircraft to Kuwait’s Wataniya Airways, has signed a MoU with Airbus for the purchase of 25 A320neo family aircraft.

Bloomberg reports that the $2.7bn deal is expected to help Airbus expand its presence in UAE and the Middle East.