DD went with a school group to Las Vegas last summer. We got her a $50 prepaid card. We checked her in for the departing flight on line and used the card to pay her baggage fees. When the group was checking in for the return flight (kiosk at Vegas airport), it wouldn't accept the prepaid card. Her teacher ended up paying for her luggage (DD later gave her the prepaid card with the money on it). I don't know if DD wasn't doing something right, but wanted to let you know.