The official American Airlines app got updated to v18.104.22.168 today with three new features. The most requested feature of adding boarding passes to Windows Phone Wallet is now available in the app. There is also support for Live Tiles and lock screen customization for flight information, etc,.
• Add your boarding pass to your wallet to scan at security
• New wide tiles will also give you live updates on your flight (gate & terminal info, time changes, etc.)
• Set our travel app as your device lock screen for flight updates too!
Download the app here from Windows Phone Store for free.