Introduction
The honest answer: five to nine years for a premium cast film on a hangared aircraft, and noticeably less for economy films or aircraft tied down outside year-round. UV exposure is the single biggest variable.

Care routines matter more than most owners expect. Gentle washing with pH-neutral soap, prompt removal of fuel and exhaust staining, and an annual inspection of film edges keep small issues from becoming lifted panels.
“A wrap ages like anything else on the airframe: predictably, if you maintain it.”
Watch for the early warning signs — edge lift near fasteners, color fade on upper surfaces, and cracking around compound curves. Caught early, a single panel can be replaced without redoing the aircraft.
Conclusion
Budget for a wrap the way you budget for paint: as a finite-life finish with a known replacement horizon. With good film and good habits, that horizon is most of a decade away.