A line graph shows the percentage of flight delays gradually dipping from from 20 per cent in 2013 to 10 percent, then tick up to 21 per cent in 2022. Cancelled flights hover between 1 and 3 per cent between 2013 and 2020. That year, cancellations ticked up to 10 per cent, then dipped to 2 per cent in 2021 before ticking up again to 3 per cent in 2022.