This is a good site, and Table 6 just list city-pairs once, so for example if your looking for e.g. ATL
, then whether you find the info under ATL
, or OKC
, there it is. Also, in Table 6, metro areas are listed and combine airports. I believe that the NYC region has the pax numbers for JFK
, and SWF
added together as one, while the Washington DC area has BWI
. I think that in addition to those two, Boston, Cleveland, Chicago, Dallas, Houston, Los Angeles, San Francisco, Tampa, Miami, and Norfolk/Newport News are all combined, and I believe that I listed them all here. I'm wondering if the Phoenix area will soon combine as well?
Anyway, to view the breakdown of airports within a combined area as I listed above, Table 1a gives this breakdown.
May this all help.