Originally Posted by
zhickman
Like David said, don't credit this flight to UA. I'd credit it to Copa Airlines. Copa is mileage based, there's no bonus for full Y, so you'll only get 100%, but Copa partners with AeroMexico, and AirFrance/KLM. So could start accruing points there on UA flights.
Miles and More (Lufthansa, etc..) will get you 150% on UA Y.