US Patent 10360801 Systems and methods for departure routing

System including one or more programs with instructions for storing a plurality of planned departures associated with departure routes and departure fixes in the memory, storing at least one constraint associated with one or more of the departure routes and departure fixes in the memory, generating a departure model for modifying the plurality of planned departures based on the at least one constraint, wherein the departure model comprises a directed graph representing the planned departures, the departure routes, and the departure fixes, determining an optimized set of flows through the departure model based on the at least one constraint, and identifying a reroute for at least one planned departure based on the optimized set of flows.