Nonsked

Nonsked refers to the category of air carriers that operate flights on a charter basis rather than on a published schedule. These airlines, often referred to as charter airlines or nonscheduled airlines, do not adhere to a fixed timetable and their flights are typically arranged for specific groups or purposes. This can include tour operators, sports teams, corporate clients, or even individuals needing private jet services. Unlike scheduled airlines, nonsked carriers do not sell tickets to the general public for their regular flights. Instead, the entire flight or a block of seats is chartered for a particular group.

The operational flexibility of nonsked airlines allows them to adapt to varying demand and provide customized travel solutions. They can fly to destinations not served by scheduled carriers, operate at times dictated by the charterer, and offer a more personalized service. Historically, the term "nonsked" was more prevalent when the distinction between scheduled and charter operations was less defined. Today, while the term persists, many of these operations fall under various categories of charter aviation, including cargo, executive, and leisure charters. Regulatory frameworks for nonsked operations can differ from those for scheduled carriers, often focusing on safety and operational standards specific to charter services.