CSS Software

Aircraft FAQ

How do I uplink my flight plan from SimBrief?

Instructions on uplinking your SimBrief route to your FMC.

Updated Latest published version

This is done through the CO RTE function. With a flight selected in the SimBrief EFB app, enter your departure and arrival airport codes without a space (e.g. EGLLEGCC) and paste them into the CO RTE field on the RTE page.

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Source: CSS Launcher User Manual, Rev. 5 — December 2025.