An aircraft system comprising: a deviation module configured to receive a flight plan with a flight segment to a waypoint, the flight plan including a lateral profile, a vertical profile, and a time profile, the time profile including a predetermined time of arrival associated with the waypoint, receive a current lateral position and a current altitude, estimate an estimated time of arrival associated with the waypoint, compare the current lateral position to the lateral profile to generate lateral deviation, compare the current altitude to the vertical profile to generate vertical deviation, and compare the predetermined time of arrival to the estimated time of arrival to generate time deviation; and a visual display (200, 500, 800, 1000, 1200, 1300, 1400) coupled to the deviation module and configured to display deviation symbology (230, 400, 530, 630, 730, 830, 850, 1230, 1330, 1430) representing the lateral deviation, the vertical deviation, and the time deviation, wherein the deviation symbology includes a reference circle, a first indicator circle that is sized relative to the reference circle to indicate time deviation; a vertical axis, a horizontal axis that intersects the vertical axis at a reference point, and at least one second indicator (312, 412) positioned relative to the vertical axis to represent lateral deviation and the horizontal axis (320, 420) to represent vertical deviation, wherein the reference circle and the first indicator circle are superimposed on the vertical axis and horizontal axis. a deviation module configured to receive a flight plan with a flight segment to a waypoint, the flight plan including a lateral profile, a vertical profile, and a time profile, the time profile including a predetermined time of arrival associated with the waypoint, receive a current lateral position and a current altitude, estimate an estimated time of arrival associated with the waypoint, compare the current lateral position to the lateral profile to generate lateral deviation, compare the current altitude to the vertical profile to generate vertical deviation, and compare the predetermined time of arrival to the estimated time of arrival to generate time deviation; and receive a flight plan with a flight segment to a waypoint, the flight plan including a lateral profile, a vertical profile, and a time profile, the time profile including a predetermined time of arrival associated with the waypoint, receive a current lateral position and a current altitude, estimate an estimated time of arrival associated with the waypoint, compare the current lateral position to the lateral profile to generate lateral deviation, compare the current altitude to the vertical profile to generate vertical deviation, and compare the predetermined time of arrival to the estimated time of arrival to generate time deviation; and a visual display (200, 500, 800, 1000, 1200, 1300, 1400) coupled to the deviation module and configured to display deviation symbology (230, 400, 530, 630, 730, 830, 850, 1230, 1330, 1430) representing the lateral deviation, the vertical deviation, and the time deviation, wherein the deviation symbology includes a reference circle, a first indicator circle that is sized relative to the reference circle to indicate time deviation; a vertical axis, a horizontal axis that intersects the vertical axis at a reference point, and at least one second indicator (312, 412) positioned relative to the vertical axis to represent lateral deviation and the horizontal axis (320, 420) to represent vertical deviation, wherein the reference circle and the first indicator circle are superimposed on the vertical axis and horizontal axis.