In one embodiment an in-aircraft system that implements a flight planning module is provided. The flight planning module is configured to display on the display unit a pending flight plan and implement a first button associated with a display of the pending flight plan. The first button, if selected, directs the one or more processing units to convert the pending flight plan to a format for sending in a datalink message, and to cause the pending flight plan to be sent to a ground station in a downlink datalink message without human input to a message applications module, the message applications module including instructions to display information corresponding to datalink messages on a display unit and to maintain a message log of datalink messages.