Geoff Austin flew as a Captain with Virgin Australia
Attended flying school single engine course then twin engine and instrument training. Experience as a charter pilot flying 2,000 hours before airlines consider you. Other sources of pilots Air Force or Cadets.
To keep license tested over 2 day every 6 months with 4 hours in simulator each day. Cover engine failure, engine fire.
Flew 737 on domestic routes short or medium haul. International have up to 16 hours flight, 737 6 hours maximum. Flight of one and a half hours will have fuel for 2 hours Fuel is refined kerosene.
Lithium batteries a big threat as a fire in cargo hold will require an emergency landing. Cabin depressurisation have 15 seconds of useful consciousness. 
Typical routes two way. Holding points over Heathcote and Berrigan.
Captain responsible for departure procedures, landing procedures and arrival procedures.