I'm paying $790 per round trip. It's a United internet special. With various bonuses, I'll get 117,000 miles (not all actual miles flown, of course). Regarding what I'd like to do in Singapore, I don't really want to go to nightclubs since I'll be by myself. I mostly want to walk around and see the best sights from the outside (since everything will be closed during the middle of the night).