A Powerball ticket costs $2 per entry. You can also add the Power Play option for an extra $1 per entry, which can multiply your non-jackpot prizes by 2, 3, 4, 5 or 10 times. If you choose to buy your US Powerball ticket online, you may have to pay slightly more. For instance, on theLotter you will pay a service fee as a messenger will buy an official Powerball ticket in your name from authorized retailers in the US and keep your Powerball tickets in a safe place.