I am travelling LHR-SYD with BA in February and I am looking at adding on some internal flights in Australia, probably between NSW, Victoria and Tasmania.

Has anybody on the board used a Oneworld Visit Australia fare? I'm sure there are reams of small print but the Oneworld page on this product is somewhat superficial and just magisterially waves a hand in the direction of "contacting Oneworld members".

I've also turned up a Qantas Airpass but the only detailed marketing information on this is aimed at the North American market.

If anybody has any advice on domestic Australian add-on fares within Oneworld that are compatible with a BA ticket (already ticketed), I'd be very grateful!