Official answers: You may check one bag free of charge when traveling to domestic destinations if travel originates with US Airways or an American Airlines carrier. Additionally, up to four companions may each check one bag free of charge, if they are listed on the same reservation as you. To qualify, your account must be open 7 days prior to air travel and the reservation must include your AAdvantage Miles number, xxxxxxx. Further, you must check in at a US Airways or American Airlines kiosk or check-in counter. Overweight and oversized bags are not eligible. If the first bag is overweight or oversized on an eligible domestic flight, $25.00 of the bag fee will be waived. Additional terms, conditions and restrictions may apply and are subject to change without notice. Authorized users are not eligible for this benefit. This benefit cannot be combined with any existing US Airways or American Airways Preferred program benefits, including any waiver of baggage charges. If your credit card account is closed for any reason, these benefits will be cancelled. We hope to have answered your inquiry appropriately.