Abstract: Systems and methods for turnkey aviation budget management are described. In one aspect, a budget is determined based on a flight schedule and an operating plan for an aircraft. The operating plan is based on the flight schedule. The operating plan indicates operational flow of one or more services and equipment applicable to the aircraft between airport arrival and departure times, and corresponding fee data. Turnkey aviation budget management automatically reconciles the budget with actual fees assessed with respect to the aircraft, while the aircraft is on ground at the airport. This reconciliation process identifies any expenses not in the budget.