A charter broker is a specialist agent who leases aircraft on behalf of a client. They receive a commission for sourcing and arranging flights to suit individual requirements such as flight times and dates.

A charter is an unscheduled flight; it is not a flight associated with a regular airline schedule. Rather than buying a seat on a flight, the entire aircraft is available for exclusive use. The term is not to be confused with aircraft broker; an aircraft broker sells or buys aircraft while a charter broker leases space on an aircraft.

A charter broker is a specialist role that ensures the safety, organisation and comfort of passengers, acting as a negotiator between clients and airlines or aircraft owners.