Originally Posted by
canadiancow
From Derek Whitworth a while ago:
They're not any AC fare brand. They're just X class.
You can upgrade any Aeroplan booking. You're not making an Aeroplan booking, you're making "a flight reward with Air Canada [segments]"
Thank you. In this case, AC X class award tickets issued by UA miles are even not eligible to eUpgrade at the airport, right?