Low-cost carrier Indonesia AirAsia plans to launch three new services from 16 May.
It will operate a four times weekly Jakarta-Johor Bahru service on 16 May, followed by thrice weekly Medan-Johor Bahru and 17 times weekly Medan-Jakarta services, starting 7 June.
The airline will use Airbus A320 aircraft on the three routes, it says.
Innovata schedules show Indonesia AirAsia will be the only operator on routes from Johor Bahru to Medan and Jakarta. It will compete with carriers such as Garuda Indonesia, Lion Air and Mandala Airlines on the Medan-Jakarta route.