Besides serving commercial and business aviation, Seletar Airport also supports the following activities.

Maintenance, Repair & Overhaul

Some 30 global aerospace companies such as Bombardier, Execujet, Fokker Services Asia, Hawker Pacific, Jet Aviation, MAJ Aviation, Pratt & Whitney, Rolls-Royce, and ST Aerospace have Maintenance, Repair & Overhaul operations at Seletar Airport. These companies have extensive facilities and hangars that provide aircraft maintenance, servicing for narrow-body aircraft and business jets as well as components.

Seletar Airport aids such businesses through the facilitation of operations and provision of facilities such as the Engine-Run Bays.

Cargo & Medical Evacuation

Seletar Airport facilitates airfreight operations that are typically involved in the import and export of electronics and perishables from the neighbouring region.

Medical Evacuation flights are also frequently facilitated through Seletar Airport, where its 24/7 operations allow for unscheduled and immediate medical evacuation to and from Singapore.

Training

A large proportion of flight movements in Seletar Airport is attributed to training flights from flying training organisations such as the Singapore Youth Flying Club.