United cancels some Barcelona flights, waives cancellation fees as coronavirus derails Mobile World Congress By sleonFebruary 14, 2020news United Airlines said it would scale back Barcelona flights and waive change fees for passengers after the Mobile World Congress was called off because of the coronavirus. Read More » SOURCE: CNBC Related posts: Mobile World Congress Is Canceled Over Coronavirus Fears Sony and Amazon pull out of Mobile World Congress due to coronavirus risk Intel is latest to pull out of Mobile World Congress due to coronavirus fears Amazon’s Alexa dives into mobile world with Echo earbuds, glasses and ring