Originally Posted by
EU-US
Why? If there are two flights on the same day, and if flight A shows 10 seats available for upgrades, flight B shows 1, don't I have a better *chance* of an upgrade if I book flight A? Just curious.
Because you are asking about available for upgrades within the upgrade window, which isn't determined until the upgrade window. I And I don't think those spaces are shown anywhere anyway, but they are zero outside the upgrade window.