Systems, devices, methods, and techniques are described for automated air traffic management using multiple flight operation modes. In one example, a method includes receiving, by a computing device comprising one or more processors, data associated with one or more aircraft in flight in a controlled airspace. The method further includes selecting, by the computing device, based at least in part on the data associated with the one or more aircraft, a respective flight operation mode from among a plurality of flight operation modes for at least one respective aircraft among the one or more aircraft in flight. The method further includes outputting, by the computing device for transmission to the at least one respective aircraft, an indication of the respective flight operation mode selected for the at least one respective aircraft.