regular service; scheduled service
Refers to transportation or delivery services that operate on a fixed schedule, such as flights, buses, ferries, or mail delivery.
A regular service calls at this port twice a week.
There is only one scheduled service per day to the remote island.
There is a daily scheduled flight from this airport to Osaka.
A new scheduled service is set to begin operating next month.
There are three scheduled services a day connecting this island to the mainland.