Originally Posted by guv1976

There is no oneworld carrier which flies GIG-LAX nonstop. So unless AA offers a GIG-LAX "direct" (through) flight, you will have to add a connecting segment. Ditto SYD-BCN and SYD-IST on QR.

To get four QR segments, you would have to transit DOH twice. (I don't know the oneworld Explorer ticket rules so I cannot say what the transit rules are.)

Very important that you list each segment (even if you're only connecting, rather than stopping over) so that we can assess status earning.

Edited to add:

At this site, you can get a good approximation of the distance of each flight segment:

- Great Circle Mapper

Originally Posted by Mwenenzi

For a *ONE* ticket you need to list all the separate flights- they count
SYD-DOH-BCN QR [could also do SYD-LHR QF/BA and LHR-BCN IB/BA]
SYD-DOH-IST QR
For the others you need to check the airline fly the route non stop (or with 1 flight number)

For *ONE* questions better ask in the dedicated OW *ONE* threads or a seperate new thread, Not this thread
https://www.flyertalk.com/forum/oneworld-411/