United has installed mobile check-in at its four hub cities – Denver, Los Angeles, San Francisco, and Washington Dulles – plus Las Vegas, Dallas-Fort Worth and LaGuardia Airport in New York. Thirty more locations will be offering mobile check-in by summer
Denver joins 43 other U.S. airports, plus Frankfurt, Germany in offering this service. In 2007 TSA introduced the pilot program with Continental Airlines adding shortly thereafter Delta Airlines, American Airlines, and Alaska Airways. For the most up-to-date information as to what airports offer the program and an airline list of cities providing this service; go to the TSA website or each individual airline’s website.
Mobile check-in saves time at the airport by letting you check in and get your eBoarding Pass right from your PDA or web-enabled phone (iPhones, BlackBerrys, etc.) within 24 hours of your departure. It’s the fastest, most convenient way to check in. You must first go to the airlines website to start the process. At the airport, TSA security officers use hand-held scanners to validate the authenticity of the boarding pass at the checkpoint