Originally Posted by
CDKing
KA is the strange due to CX being the owner.
On track with KA another wierd one is QF's wholly owned subsidiary Jetconnect (QF coded as well). I can book it on an ex US award but its not available on a AU-NZ award. Technically AU-NZ is not listed on the chart but the 1 QF operated i could find AU-NZ flight can be booked on its own
IB makes sense to not be a partner. They may have JV with AA and BA for TATL but that's just a small piece of the puzzle and AS is not a OW member.
Umm, IB and BA are 100% owned by the same parent company, just like JQ/QF and KA/CX. However, BA and IB are both full service airlines (that just have different home base airports), whereas JQ and KA are each low-cost counterparts of their parent, full-service airlines. JQ in particular doesn't participate in any frequent flyer programmes except QF's. So I think it's more strange that IB is and BA isn't. Though the BA/AS partnership long predates the BA/IB backroom merger.