Western Sydney International (WSI) airport, officially named Western Sydney International (Nancy-Bird Walton) airport, is set to begin commercial flights later this month. The greenfield development at Badgerys Creek is intended to complement Sydney Kingsford Smith airport at Mascot, which is constrained by its size and a strict curfew imposed to limit noise for its inner-city neighbours.
Airlines that have announced services from WSI include Qantas and its subsidiary Jetstar, alongside Fiji Airways, Vietjet Air, Air New Zealand and Singapore Airlines.
Domestic fares
Guardian Australia compared fares for a hypothetical return trip from 1 to 12 December, factoring in the cost of getting to the airports from four locations around Sydney.
Jetstar was the cheapest option on Skyscanner for domestic flights. From WSI to Melbourne's Tullamarine, return flights started at $187, compared with $258 from Kingsford Smith. However, flying from Kingsford Smith to Avalon, Melbourne's secondary airport, could save about $50, though the trip from Avalon to the CBD is considerably further.
For Brisbane, one direct Jetstar flight from WSI on 1 December started at $236 for the return trip, while Kingsford Smith had more options with return fares starting at $207. To the Gold Coast, a direct return Jetstar flight from WSI started at $131, leaving at 2.10pm, while the cheapest Kingsford Smith option left at 7.20am with Virgin for $192.
International flights
WSI has announced direct international flights to Auckland, Singapore, Ho Chi Minh City and Nadi, though some will not have started by 1 December. Kingsford Smith was generally more affordable for the flights reviewed. Singapore Airlines is starting daily non-stop flights between Singapore and WSI on 23 November. For flexi-fare economy, the price difference was $235.98 between the two airports, with Kingsford Smith cheaper unless parking or the traveller's location is considered.
Getting there
A Sydney Metro rail line connecting WSI to the main rail network at St Marys is due to open next year or in 2028. Until then, a free shuttle bus will operate between the airport and St Marys train station every 30 minutes. A $25 "super shuttle" from Parramatta and Central stations is available, and the 790 bus from Penrith is one of several new local routes to WSI.
Parking
Parking at WSI is significantly cheaper while an introductory discount is in place. Middle-tier P2 parking for the notional trip would cost $147, compared with $213.40 at Kingsford Smith domestic and $248.80 at the international terminal. The cost of petrol or tolls was not included in the comparison.