Good question. I'm flying Aegean for 1st time in 3 weeks and will be connecting from UA in Munich to Aegean. I booked on UA website as I am gold status with them and there is NO info regarding seating. The Priority Desk said that they can't even SEE the Aegean flight seats. We're booked, my BFF and I, but no seats. I'm in Business First on United and the equivalent on Aegean to Athens. It's quite confusing that we cannot book seats until what, a day or 2 before?