Originally Posted by
davetravels
I've never seen intra-Europe KL/AF flights bookable with DL flight numberz unless they are married to other DL TATL flights, have you?
It's not bookable on the site, but I called the DM line and they booked it with no problem. It was AMS - TXL, round trip. KLM doesn't put the fare class on the mobile boarding pass though (or I can't find it), so unfortunately I know know it. Delta shows it as an X fare class in my receipts.