When I was a child I used to have the ability to realise when I was dreaming and while in that state be able to fly around my dream world...
Have since lost that ability in my all too serious adulthood...
One dream interpretation of that flying ability is:
Flying dreams fall under a category of dreams known as lucid dreaming. Lucid dreams occur when you become aware that you are dreaming. Many dreamers describe the ability to fly in their dreams as an exhilarating, joyful, and liberating experience.
If you are flying with ease and enjoying the scene and landscape below, then it suggests that you are on top of a situation. You have risen above something. It may also mean that you have gained a different perspective on things. Flying dreams and the ability to control your flight is representative of your own personal sense of power.
Having difficulties staying in flight indicates a lack of power in controlling your own circumstances. You may be struggling to stay aloft and stay on course. Things like power lines, trees, or mountains may further obstruct your flight. These barriers represent a particular obstacle or person who is standing in your way in your waking life. You need to identify who or what is hindering you from moving forward. It may also be an indication of a lack of confidence. You need to believe in yourself and not be afraid.
If you are feeling fear when you are flying or that you feel that you are flying too high, then it suggests that you are afraid of challenges and of success.
In reality, we cannot really fly, of course. Thus, such dreams may represent that which is beyond your physical limitations. In your mind, you can be anybody and do anything. Another way of interpreting flying dreams is that these dreams symbolize your strong mind and will. You feel undefeatable and nobody can tell you what you cannot do and accomplish. Undoubtedly these dreams leave you a great sense of freedom.
Read a great book called Chickenhawk once - about a vietnam vet who was a Helicopter pilot in them days - hilarious and amazing insight into chopper pilots - I now wish to be a Helicopter pilot...
But I do go on astral flights frequently (yes out of body flying) - its quite an easy task when you know how to safely and appropriately...one gets quite a perspective of ones universe when one does astral travel...I thoroughly recommend you trying it under professional guidance.