What is a wet lease basis?

A wet lease is an arrangement in which one airline provides an aircraft, complete with crew, maintenance, and insurance, to another airline for a specified period. This allows the leasing airline to operate flights without the need to manage the aircraft's crew or maintenance logistics. Wet leases are often used during peak travel seasons or to cover for aircraft that are undergoing maintenance. The term contrasts with a dry lease, where only the aircraft is leased without crew or additional services.