I'm trying to book a flight to Oslo next summer but want to use miles for one of the tickets. I'm not seeing any mileage availability on Delta into Oslo yet. Sounds like KLM hasn't released that availability yet. Delta Plat line couldn't give me any ideas on when that availability would open up or if it even would. Is there a risk that KLM wouldn't open up for mileage booking? Any ideas on when to expect that to open? Thanks.