A Singapore Airlines Airbus A380, top, takes off at Singapore's Changi Airport as an Airbus A320 from its subsidiary airline, Silkair sits on the tarmac, bottom, on Monday. Pic: AP.

SINGAPORE (AP) — Airbus announced its second major aircraft order of the Singapore Airshow with a deal Wednesday to deliver 20 of its superjumbo A380s to leasing company Amedeo.

The 20 planes are worth about $8.3 billion but list prices are often discounted for big buyers.

The order is a boost for the European plane maker because A380 sales have fallen short of expectations.

Amedeo CEO Mark Lapidus said the A380s will be delivered between 2016 and 2020.

A day earlier, low cost carrier VietJetAir signed a deal to buy more than 90 Airbus A320 jets worth about $9.1 billion at sticker prices.