This is a really curious one! The fact that it stays in the same place physically (above the ground) when you move the camera, it probably isn't an image fault (which would be on the same spot on the image when you move).
The shape is wrong for a bird, and doesn't quite look like a tethered hot air balloon (too small, weird shape). It's not falling, seems to be at the same altitude.
I don't see a tether, but my guess is a helium balloon, the kind you buy at a party store. But honestly, I have absolutely no idea what it is!
... my guess is a helium balloon, the kind you buy at a party store....
only to complement this: my guess is 3 pieces of white party balloon in bouquet. (obviously tether thread is not visible at this resolution and distance): As per 'G'
probably been lost after an in-situ (media directed) welcome party at the airport. many times we see arriving sportsmen around airports rounded by fans, overwhelmed with flowers, dessert chocolates, plush toys and -why not- with balloon bouquets. many other scenarios can be imagined of course.
also note, that from many other angles it much more resembles to a plastic bag gone with the wind: As per 'A-F'
and also this can be a UFO, a shapeshifter spy vehicle of an alien technology. (: