Look like the airfare for 29th Aug from Sydney to Madrid is A$1881 for Finnair's premium Economy (QF81, AY132, AY1661), times 6 people = 11.2k. Is there any way I can save on this?
I wish I participated in the Finnair point sale… https://www.ozbargain.com.au/node/673063
Anyway, PM welcome.
Fly regular economy; Scoot to Athens for around $650 pp, then on to Madrid for another $150pp or so.
The point sale would have unbeneficial for your situation, given getting six award tickets is highly unlikely unless you are flying economy.
Also, the OWE status which would get you in the First lounges where available, usually has a limit of 1 guest per OWE member, so you would need three passengers to hold OWE status to get all passengers to enjoy the lounges.