Must admit when I wrote my 05/23 comment I hadn't taken Gatwick or Luton into account
Lots of talk about LAX, but would a better comparison be JFK?
There are three large CAT airports within that region as well as a large conurbation -- similar to the Heathrow/Gatwick/Luton(Stansted) congestion we have here.
Do JFK allow VFR transits?