Apologies, was unclear with the background info. Basically I need to be in Canberra over XMAS and flights from the UK to there are understandably very expensive over that period (~$2k+ in economy for dates I want) and of course award bookings into Australia are very tough just pre xmas (I have flex in Jan for a return so that is less tough). Plus if flying in economy for some or all long hauls I'd want to break up the journey (love biz class of course but I travel OK in economy on a single long haul if it's mostly a day flight, two back to back though....).

So I'm pondering options. E.g. either nesting a ticket within another (e.g. LHR-SIN and SIN-CBR), and wondering if getting there on a LONEx and then using the rest of the RTW later in 2019 has more value. If I did a LONEx it would probably be Europe USA Australia Asia (nest return to London) Europe as I may have reason to be in the US in Dec.

Also I was just interested in what the prices were for its own somewhat nostalgic sake. My first xONEx over a decade ago was a LONE5 (I've done maybe 10 DONEx RTWs since but always from somewhere very cheap and expected that last one -- ex-CAI -- to be my last for a while at least as over time the time away is harder, the travel is worth less and the mileage value has reduced with AA's changes so I'll likely let EXP slip from 2020).

So.... I assume nobody knows if anywhere beats OSL by a non trivial amount?