To purchase a boarding pass for a US Airways flight, book a seat on a flight and collect your boarding pass when you check in for your flight. You can print your boarding pass at home or at the airport, or have an electronic version sent to your mobile device.
Online check-in for US Airways flights begins 24 hours before your flight's scheduled departure time and must be completed at least 45 minutes before departure, or 90 minutes for an international flight. Alternatively, you can check in at the airport kiosk where final check-in times vary from 30 minutes to 75 minutes before the flight, according to the airport and destination.
Boarding cards are normally printed out on paper or card. To receive a paperless mobile boarding pass, check in on USAirways.com and choose Send boarding passes to my email/boarding pass wallet when asked how you want your passes. You need to install Passbook to an iPhone or iPod Touch. The email you use when you register the app is also the email that receives your mobile boarding passes. You can use the mobile boarding pass at the airport kiosk to check bags, at security checkpoints and at the boarding gate.