eMarketer estimates that leisure and unmanaged business travelers in the UK will spend £18.44 billion $29.27 billion this year on bookings made on desktop and mobile devices, up 11.8% over 2012. We expect growth rates to slow throughout the forecast period, with a 5.3% increase in digital travel sales expected for 2017, when the total spent will reach £24.68 billion $39.17 billion.

via UK Digital Travel Researchers Spend Big Online – eMarketer.