I don't think there have been any announcements from airlines as to what services they will operate from WSA.Merc1107 wrote: ↑Thu Jun 01, 2023 1:10 amSome years ago while organising a trip to the US, I found it was cheaper to travel via Japan than to fly direct from Australia. With at least one airline, a transfer in Tokyo was actually scheduled (by the airline itself, not some shady travel agent!) to involve going through Customs and making your own way between Narita and Haneda airports. Researching this online, I discovered this is quite a common occurrence for people transiting in Tokyo; although I didn't pursue the option. In hindsight, I wish I'd done it.
Whether the demand for transiting in Sydney is ever great enough for airlines to suggest such an arrangement, I don't know, but the example certainly goes to show it happens overseas (unsure if it is an isolated scenario - e.g. is the same done in Moscow or London?).
When I travelled to Tokyo in the 1980-90s, NRT was purely international and HND was almost entirely domestic. Transfer between them involved either a direct shuttle bus or up to three rail sectors.
Some "experts" are predicting that WSA will be predominately domestic in the initial stages.