The Indonesian carrier pulled the service in October last year amid what it described as a “restructure”.
However, flights to the Indonesian capital from Heathrow resumed on November 27 from Terminal 4.
Now, the airport’s flight schedules show the service’s ultimate destination as Denpasar Bali rather than Jakarta as of January 22.
The non-stop flight will continue to operate three times a week on Tuesdays, Thursdays and Saturdays, departing London shortly before 10pm.
Bali offers onward connections to Jakarta, as well as Australia.