Originally Posted by
FijiBill
Hmmm.. I wonder how that works for KLM/Delta though, where one earns 100% and the other earns 50% (usually). If you were able to claim missing mileage, would you get 100% or 50%?
OTOH BA/AA are both 100% earning partners for MileagePlan but lots of reports of no credit for TATL BA/AA codeshares.
I flew KLM coded as Delta last year and received 100% for the miles. That was before earnings were reduced. Never tried BA/AA though.