en route 
/ɑnˈru:t/ adverb
/ɑnˈru:t/ adverb : on or along the way when you are going to a place
▪ We stopped to eat en route to the museum.
▪ We stopped to eat en route to the museum.
— en route adjective
▪ They arrived early despite several en route delays.
▪ They arrived early despite several en route delays.
