It has a fly speed, but its own rules text takes precedence and modifies what that can be used for.
So no, you cannot fly it up into the air.
The text seems pretty clear that it always maintains an altitude of 6" from the surface and that if you manage to get some air, such as if you "drive off a high surface," then you lose 20ft altitude per round until landing with no harm to it nor you.
I wish all vehicles were this clearly written. The Enercopter for example can't go sideways, up, or down despite being a sci-fi rotorcraft and somehow engineers in Starfinder forgot how reverse works as no vehicle is capable of backing up...