Quick upgrade question and didnt want to start a new thread about this:
I've got an upcoming SEA-JFK-ZRH flight in April that's booked into Premium Select. The SEA-JFK leg is on a D1-equipped 752 and I'm of course in C+ for the connection. The website says that this segment is "not complementary upgrade eligible". I know these dont open up for comp UGs until day of departure; is this why I'm seeing this message? I'm not likely to get the UG regardless, even as a Platinum, but was just curious why this message was displayed. The fact that this is an international itinerary should not matter for purposes of domestic D1 upgrades, right?