Originally Posted by hangpilot

Yes, put in OP# - no problem selecting premium seats on flights on NW metal. Flight dates are over the Thanksgiving period, so coming up quite soon.

I wonder if this issue exists on KLM flights that are NW codeshares when the KLM portion is directly out of a US airport? Or maybe it's just specific to certain routings out of AMS (on which KLM may frequently substitute different plane types as demand dictates)?