Originally Posted by
florin
That's not always the case. I flew CVG-CDG-OTP on an AF ticket, and the CDG-OTP flight was a codeshare AF flight operated by RO. I got the miles for it. I've done this itin several times and always got the miles. (It was, after all, an AF ticket.)
How'd it post? As AFxxxx? Generally speaking, this is an exception to the rule, as you'll note on nwa.com that mileage is earned based on the operated carrier. CO-codeshares on Virgin is not one of those exceptions.