THE tourism industry is renewing a push for the government to cut the price of tickets on the airport rail line, which charges passengers an extra $12.30 for every trip.
A report by the Tourism and Transport Forum claims the cost of travelling to the CBD from the airport works out, per kilometre, to be one of the most expensive airport trips in the world - about $2 a kilometre.
A TTF survey of global cities found it costs less than $1 a kilometre to travel to the centre of the city from airports servicing Paris, Beijing, New York, Melbourne, Copenhagen, Brussels and London.
''First impressions are important,'' the deputy chief executive of the TTF, Trent Zimmerman, said. ''Particularly for the price-sensitive market, to get to the platform and find it costs an extra $12.30 - that does not create a great first impression.''
Any reform of ticket prices to the two private airport stations would not come cheap. In 2011, the NSW Parliamentary Budget Office put the cost of buying out the stations at $276 million.
The O'Farrell government's adviser, Infrastructure NSW, recommended cutting the cost of travel at the airport stations.
''It is costly but, in the absence of anything else you can do to dramatically improve capacity around the airport, it makes such good sense it is hard [to imagine] it can be resisted forever,'' Mr Zimmerman said.
Travel between Mascot station, where there is no extra station access fee, and Town Hall costs $3.60 an adult ticket. Travel between the domestic airport station and Town Hall costs $15.90.
The Transport Minister, Gladys Berejiklian, said it was not government policy to buy out the airport rail line.