This just hit my inbox... Upgrade on US Airways at Check-In Until we integrate our programs, we will introduce the ability for AAdvantage elite status members to upgrade to First Class on US Airways within 24 hours of departure, beginning June 11, 2014. If available, an opportunity to upgrade will be presented at check-in for US Airways-operated flights within and between the U.S. (excluding Hawaii) and Canada, Mexico, the Bahamas, the Caribbean, Bermuda and Central America and will be provided on a first come, first served basis. If a seat is not available, you can also choose to add yourself to the upgrade standby list. These upgrades are complimentary for elite status members and one companion traveling in the same reservation – just as they are on US Airways today for Dividend Miles elite members. If available, upgrades will be offered at check-in via usairways.com, US Airways app, US Airways mobile website, self-service kiosk, US Airways airport agent or a US Airways club agent. To secure an upgrade, all travelers in the reservation will need to agree to the upgrade options as presented at check-in. If you are traveling on a mixed itinerary and are checking in with American, but connecting to a US Airways flight, please see a US Airways agent to assist with the upgrade on US Airways. Additionally, you may now also upgrade on US Airways marketed, American Airlines-operated flights at check-in following the policy outlined above. Please refer to our FAQs for more information.