When it comes to keeping things on track, being "on schedule" is a crucial element. However, repetition of the same phrase can become tedious, making it important to introduce synonyms that convey the same meaning. "As planned" is an excellent substitute, emphasizing that everything is happening according to the original blueprint. "In line with the timeline" is another alternative, focusing on the importance of following a timeline that was put in place. "Punctual" is the perfect word to describe an event that is happening precisely on time without any delay. Finally, "on time" remains a reliable interchangeable term for "on schedule," adding variety to your vocabulary.