Hi Matty, I would decant it into a container if I were you, then you can spray it through your airbrush. The reason being you have more control with your airbrush than spraying straight from the can. If I am using paint from a spray can I tend to thin it down a little, how much depends on what you are happy with. Also, by thinning the paint it doesn't clog the airbrush nozzle as much.
Hope this helps
Tony