Is there a reliable cut-off time when rows 81-82-83 are released to the plebs? I'm on FRA-SFO this Saturday with a pretty decent 86K, but I'd love a forward K seat for better views of Greenland unobstructed by the wing/engines. At the moment all seats in those rows are still showing as occupied (which may be true, the flight seems to be pretty packed).

This is probably the most first-world question I've posted in my ten years on FT, but it's my first time on a 748 and I want it to be perfect