Originally Posted by
Dfindy
I’ve been on a Delta ticketed KLM operated flight that due to IRROPS in Amsterdam they had to put me on a BA flight and I got ORC as it was still on a 006 ticket and connected to Delta when i called them.
A Delta ticketed itinerary is a completely different story. The OP is not on a Delta ticket.
If you bought a ticket from DL on 006 stock then ORC is straightforward as DL knows what you paid for and controls the ticket.