A Qantas flight from Adelaide to Canberra has been diverted to Melbourne after a cabin depressurisation.

Qantas says pilots on flight QF706 followed standard procedure when the incident occurred on Tuesday morning, descending to 10,000 feet.

Oxygen masks were deployed but once the plane reached the lower altitude passengers were instructed to remove them and breathe normally.

The plane was given a priority landing at Melbourne Airport and arrived without further incident.