Cathay Pacific Airways said it would guarantee thousands of first and business-class flights sold at huge discounts after a ticketing error, calling the mistake a surprise special on New Years Day.
The Hong Kong-based carrier acknowledged the error on its twitter feed on Wednesday, stating "we made a mistake but we look forward to welcoming you on board with your ticket issued. Hope this will make your 2019 special too!"
With the hashtags "Promisemadepromisekept" and "lessonlearnt" the carrier said it would maintain the economy fares.
The fares were not available on Cathay's website on Thursday.
Flyer Talk Evangelist wrote "Nobody here has noticed the hot mistake fare? ... Has been going on for hours. Wanna bet on the odd CX would honour this?"
The ticketing error caps a tough year for Cathay. The carrier has come under mounting criticism after it said in October that about 9.4 million passengers' personal data had been accessed without authorisation, seven months after it became aware of the breach.
The airline said it has spent over HK$1 billion ($127.7 million) on IT infrastructure and security over the past three years.
($1 = 7.8339 Hong Kong dollars)