From 3 April, the train operator will run two services non-stop between Gatwick Airport station and London Victoria.
The service is timetabled to operate seven days a week, although this will be affected by weekend engineering work.
Gatwick’s station is currently being redeveloped to “improve accessibility, reduce passenger congestion and cut delays”, according to Gatwick Express operator Govia Thameslink Railway.
Services were suspended on 30 March 2020 as international travel restrictions came into force and passenger numbers sharply decreased.