User blog comment:Blackendedsoul/Can he Fly?/@comment-3213092-20120113120715/@comment-3119203-20120113151945

Rici, they can turn to their element, so they can travel through the air for short times. However, most logias (Akainu/Aokiji) are elements heavier than air, so they can't stay their as long. Kizaru is light, which is affected by gravity, but not as well, so he can support himself longer. In theory Smoker can also do this.

Not so good with the physics of light, so this is probably wrong.