While CAA passenger figures always come in higher than LLAOL figures due to the airport not counting infants, August is somewhat different.
820,000 = Airport figure
https://mediahub.london-luton.co.uk/...ngers?ref=Home
622,035 = CAA figure, which is substantially lower.
So why would that be? Did the airport "cook" the figures in the past to keep them below 18m and are now including every possible passenger including business jet passengers to raise the figures for its press release? Even allowing for business jet passengers the difference is over 28% so who are they counting?