I'm sorry that I wasn't more clear. We will depart Athens for Munich, spend 3 days there before returning to SFO (direct flight). I initially booked a 3 PM flight to Munich, it was cancelled and the only available option was the 11 AM flight.
We are flying on an award ticket, booked by United and this leg (to Munich) is on a Star Alliance partner. I do understand that United has to accept what their partner opens up for award space, and that's the issue.
As per the suggestion above, I've posted this in the Cruise Air forum, so I'll use that for and not create more confusion with multiple posting.
Thanks for the comments!
Bruce