Two ANA business class signs at check-in.
All Nippon Airways sold some business class tickets priced at $10,000 for only $300.
  • One of Japan's biggest airlines accidentally underpriced some first class and business class tickets. 
  • All Nippon Airways sold a ticket worth $16,300 for $890 because of a currency conversion mistake.
  • It is not clear if the airline will honor the tickets sold while the glitch was occurring.

A Japanese airline accidentally underpriced some business class tickets, with a handful of travellers securing $10,000 tickets for only $300, Bloomberg reported on Wednesday.