Based on the list price of the A320neo, Airbus's best-selling single-aisle jet, the purchase would be worth at least $46.6 billion before customary discounts if Indigo exercises all of its rights to the aircraft.
The deal is expected to be officially announced later Wednesday at the Dubai Air Show, they added.
An Airbus A320neo of Hungary's Wizz Air, an airline in which Indigo Partners is a major shareholder. "We are convinced that the Airbus A320neo and A321neo will be game-changer aircraft for Wizz Air, as we continue to grow at an industry-leading rate and expand our market reach across and beyond Europe", said József Váradi, Wizz Air's chief executive officer.
Boeing and flydubai declined to comment.
Image Zoom |By Tim Hepher and
The order, believed to be the biggest ever for Airbus, will more than double the value of the airline's sales for the year.
The umbrella deal is created to supply aircraft to four airlines in which Mr Franke's Indigo Partners investment company has stakes: US-based Frontier Airlines, Mexico's Volaris, Chilean carrier JetSmart and Hungary's Wizz.
The deal will be considered a triumph for Airbus amid continued speculation as to whether it would secure an order from Dubai carrier Emirates for additional A380s at this week's Dubai Airshow.
The air show is proving a positive one for Airbus, who began the annual event lagging behind rival Boeing in the order department in 2017, so far.
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