Travel costs are expected to rise in 2019, with hotel prices rising 3.7% and flight prices increasing 2.6%, according to the Global Travel Forecast, published by Carlson Wagonlit Travel and Global Business Travel Association (GBTA) with the support of the Carlson Family Foundation. This fifth annual report, which was released on July 24, 2018, cites a growing global economy and rising oil prices as the drive behind this predicted rise.