my uncle bought a bike over there and just brought it back as part of his luggage. The airline never batted an eyelid. As long as you have the weight limit, you might be ok, just check with your airline that they are ok with such things.
If you do want to ship it, your going to have to use ups or something like that....and expect to pay for it too !!! I reckon youd be looking at $50 at least.