China Southern Airlines says it will honour customers' tickets after a glitch on Wednesday evening saw flights to Chengdu for as low as 10 Yuan or NZ$2.
Instead of reneging on the offer, the airline honoured the mistake and allowed the tickets to be used.
In a statement, it said, "All flight tickets that have been paid and issued during the system glitch will be valid and travellers can use them normally."
Accidents like these happen frequently, but not all airlines honour them. In 2015, American Airways mistakenly sold round-trip business fares from the US to Beijing and Shanghai for between $0 and $20.
In 2018 British Airways cancelled tickets advertising flights to Tel Aviv and Dubai for as little as NZ$2.
In the same year, Air New Zealand sold tickets from the United States to New Zealand for US$100 (NZ$136.25) only for the airline to send out emails saying they would be cancelled for being too cheap.
Unfortunately, for customers travelling between China and New Zealand, it seems that the glitch did not affect those routes. It is unknown how many tickets were bought before the error was discovered.