Methods and systems are provided for optimizing aircraft operations using uplink weather data to identify predicted turbulent conditions. The method comprises uploading current weather data to a flight management system (FMS) of an aircraft. Areas of turbulence are identified according to the uploaded weather data including areas of turbulence along the client flight trajectory stored in the FMS of the aircraft. An optimal turbulence penetration speed is planned for each identified area of turbulence. The estimated time of arrival (ETA) and minimum and maximum estimate time of arrival (ETA min/max) for the aircraft is recalculated based on the optimal turbulence penetration speeds. The recalculated ETA and ETA min/max is automatically transmitted to an air traffic control (ATC) authority with the FMS of the aircraft.