The daughter of expelled Syrian charge d'affaires to Australia Jawdat Ali was effectively thrown out of the country just months before she completed her Year 12 certificate and is "collateral damage", her teacher says.

The 17-year-old has spent the past four years in Canberra schools, but flew out of city at 5pm today despite one of her teachers making an impassioned plea to the Australian government to allow her to remain in Australia to finish her education. They family is scheduled to fly out of Sydney tonight.

Expelled ... Syrian charg d'affaires Jawdat Ali has until 4pm today to leave Australia. Credit:Andrew Meares

She had to leave because Australia joined an international diplomatic offensive to protest against the Syrian regime's brutal crackdown on civilians earlier this week, delivering a 72-hour ultimatum for the country's top envoy - her father - to leave Australia.

Canberra College teacher Judy Talberg told ABC radio this morning that the school community has asked Foreign Minister Bob Carr to grant Mr Ali's daughter an exemption from the expulsion so that she can finish her education in Canberra.