Western Sydney Airport will open in December with free bus services connecting passengers to St Mary's rail station, as the planned Metro link faces delays due to a cost dispute with contractors. The journey from Sydney CBD will take approximately 1 hour 45 minutes, combining train travel to St Mary's with a 45-minute bus connection. The M12 motorway linking Badgerys Creek to Sydney motorways will open in coming months, with 6,000 parking spaces available at the airport.