So far this year starting in January 2018 the airport has seen 1 million passengers using it a 7% increase on this time last year. July 2018 saw a 12% growth on 2017 which equates to an extra 20,000 passengers for the month compared to July 2017 and the rolling year saw 8% growth. If the airport keeps the growth up then the year should end over the 1.6 million passenger mark.
https://www.cardiff-airport.com/news...ers-in-august/