Hi ExMo, Sorry for the confusion. My intention is not to purchase a round trip ticket between where I am and xxx; it is to purchase a one-way ticket and carry on from my new destination.

Although I will have only used 16 segments, my understanding of a OWE ticket means I can not take more than 4 flights in one area, eg Austalasia. The addition of SYD-ASP-SYD would put me of this limit wouldn't it?

Thanks for your patience.