Smartphones and tablets are on track to capture nearly one in five online travel dollars by 2014.
U.S. mobile leisure/unmanaged business travel bookings will hit nearly $26 billion in 2014 -- more than tripling since 2012 -- estimates travel research firm PhoCusWright.
"Everyone knows mobile activity is booming, but it's hard for companies to know where they stand when growth rates are so high," said Cathy Schetzina, senior analyst at PhoCusWright. "In fact, mobile bookings will increase so quickly over the next two years that a 40% growth rate can mean you're falling behind."