As a child, many moons ago, YES, I dreamt very regularly of flying and sometimes even being able to breath underwater. My dreams were consistant in a particular theme/area where I was living and was raised, my southern Baptist church that I attended regularly. My dreams mostly started as I was flying into the street that the (city block wide church building took up), & that I was able to fly into any of the multiple entry doors & fly through the many floors (5 floors or more in all), and no one was there, or if they were, they couldn't see me or I wasn't a surprise if they actually saw me. If it counts, I also dreamt that I could breathe underwater in a swimming pool that I regularly swam & played in.
I miss those dreams! (never dreamt about floating, but I always have & still "pre-dream" about places I've never been, & recognize them when I eventually get there, sometimes years later.)
Don't ask me about it, I just accept it & appreciate it.