Travelers journeying to Atlanta by train are likely to board Amtrak trains that limit the amount of luggage you can bring on board. The normal allowance is two pieces each for personal and carry-on luggage as well as a maximum of four pieces of checked baggage, two at zero cost and the other two at around $20 each. When it comes to special luggage such as bikes, baby items, or firearms, you can bring them along in place of your carry-on or checked luggage but expect to incur an additional fee.