Originally Posted by
Schwann
It's worth noting that interline agreements are not dependent on alliance or codeshares. For instance Virgin Atlantic and British Airways have interline agreements, as do various other weird and wonderful airline combinations. Someone could check on ExpertFlyer to see if such an agreement exists between QR and EY, but I'd say on separate tickets and a 25 hour stop would make this basically impossible.
On a single PNR with connection EY to QR of 6 hours, is an interline baggage transfer be available?