Smoking at Airports in Australia

Adelaide Airport (ADL)

Alice Springs Airport (ASP)

Ayers Rock Airport (AYQ)

Brisbane Airport (BNE)

Cairns Airport (CNS)

Canberra International Airport (CBR)

Darwin International Airport (DRW)

Gold Coast Airport (OOL)

Hobart International Airport (HBA)

Mackay Airport (MKY)  

Melbourne Airport (MEL)

Norfolk Island Airport (NLK)

Perth Airport (PER)

Sydney Airport (SYD)

Note: In general smoking in public buildings is against the law, but rule varies from place to place in relation to smoking in cars, restaurants, bars and cafes

Best airport in Australia for smokers is Brisbane airport and the worst is Canberra airport, the rest have limited pre-security facilities

Vaping, Heat not Burn and E-Cigs with tobacco are also banned. See here.