Southwest Airlines said it will expand the use of mobile-based boarding passes to Chicago's Midway Airport, and several others, allowing passengers to use their cell phones to pass security checks and board aircraft.
Southwest passengers with flights originating in Baltimore, Denver, Orlando and Phoenix. Southwest said the decision followed a pilot program in the Texas airports of Dallas, Houston and Austin that began in the fall.
Mobile boarding will continue to operate at those airports, the airline said.
Southwest said passengers can elect to receive their boarding pass through email or sent via text message while checking in for flights.
Mobile boarding currently isn’t available for passengers flying on Air-Tran-operated flights or international flights, Southwest said.
The airline said it would continue expand the mobile boarding program this year.