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This FACT indicates the cost of a 10km taxi trip between 6:00 and 18:59 (peak time) in each Australian city (Including Flagfall). Due to a nation-wide crackdown on drink driving, coupled with relatively few public transport options and connections, taxis are, for many, the only viable transport option for a night out.
Based on results from taxifare.com.au in 2013 using the taxi fare calculator, the city with the highest fare during peak hour is Sydney, at $24.90 per 10km. The city with the cheapest fare is in Darwin at $19.08 per 10km.