This paper studies the separation maneuvers that an Unmanned Air System (UAS) may execute to avoid breaching the separation safety margins imposed in each type of airspace, namely 3 NM, 5 NM, and 10 NM. The UAS was assumed under the control of its Pilot in Command, with available information about its surrounding traffic through ADS-B or ADS-C, and most likely under the supervision of an ATCo. A number of UAS separation maneuvers have been identified that may guarantee the desired levels of separation if executed with the right parameters and enough anticipation. This paper focuses on identification of the most suitable maneuver for any separation conflict geometry and performance envelop. The conflict geometry is modeled to take into account the speed of both vehicles (the UAS and the intruder), the conflict angle, the turning limitations of the UAS, the reaction time of the pilot, and the communication latency.