British Embassy Tbilisi posted an update on flight information for British Nationals in Georgia.
"Please find an important announcement for British Nationals in Georgia:
We know that many British Nationals have taken advantage of the grace period for visa expiry until 31st December.
The Georgian Government has not yet announced any extension, so we would strongly advise all whose legal stay is currently due to expire on 31st December, or during the 1-15 January public holiday period, to make an appointment at the Public Service Hall as soon as possible to obtain their guidance on visa expiry, and regularise their stay as necessary.
If you plan to leave Georgia shortly, the list of flights currently scheduled is published by the Georgian Civil Aviation Authority here." - the post reads.
