Originally Posted by
cockpitvisit
Did you try selecting seats during booking or afterwards? Try selecting seats under "my trip" on the KLM website (log in with booking details).
I just booked FRA-AMS-NCL on KLM via opodo (without entering my Volare #). Then I went to the KLM website and opened my booking under "my trip". There was no free seat selection.
I then entered my Volare # (you can do it under contact details), and free seat selection immediately became available, along with one piece of checked baggage. So Volare should work on KLM.
Oddly after adding the number I could see the extra free bag but no seat selection. I will try again and update. Thanks