ANA's current schedule consists of a single daily flight operating between the two airports, leaving Narita in the evening and returning to Narita in the morning.
The additional Ho Chi Minh City flight will depart from Narita at night, and arrive in the evening.
The airline, the largest in Japan, said this would greatly improve convenience for passengers travelling between the two cities, especially those transiting both to and from flights between Narita and North America – a route of high passenger demand.
As a result of this increased frequency, the number of US cities accessible from Narita within three hours of arrival from Ho Chi Minh City will increase from four to 10.