I've read several blogs suggesting that booking singapore airlines to use for star alliance works out very well eepecially for saving miles to hawaii. I checked united for awards availability and there was a lot of availability on the date I want in February 2015 for saver level award tickets. My understanding is that I could then call singapore airlines and use miles to book those flights. Is that incorrect? I called singapore airlines and I talked to a very nice person who spoke english pretty well but with an accent I had trouble understanding. She said that she couldn't book the flight although I gave her the information on the flight numbers that was showing availability on united. Is this one of those HUCA moments, or is this something where I am going to be rather out of luck and find out I have a lot of singapore airline miles I was not planning on having? Anyone have any experience with this before? Thank you!