U.S. Airways doesn't offer a smartphone app as of February 2015, but travelers can use the Web browsers on their smartphones to access the check-in feature on the airline's website. They can access U.S. Airways' Web check-in feature by choosing Check In Online from the Travel Tools drop-down menu.
To check in online, a traveler must look up his flight by entering the ticket number or code found in the confirmation email he has received. U.S. Airways typically closes passenger and baggage check-in 30 minutes before domestic flights and 60 minutes before international flights. However, some airports require passengers to check in at least 45 minutes before departure.