Thank you for taking the time to expand your answer and help. I want to fly from MSO (Montana) to AMS (Amsterdam) June 17 (approx) and return from NCE (Nice) to MSO on July 9. So it is more than 90 days out. Yes, I was using D! and First class synonymously. But never mind, is D1 (Delta 1?) that Sounds high enough for me
I'm not seeing anything like 80k miles each way, so I'm wondering if I'm searching the correct way.
With some repositioning I might be able to depart from and return to LAS (Vegas) but that would add additional cost.