Just for gits and shiggles, I was pulling some O&D data, and the numbers are a little more skewed than I thought they'd be:
One month can't account for seasonal traffic variations, but the market is heavily leaning towards New York, California and Florida. But still, it's more than Jewish communities. Miami, LA and New York all have large Jewish communities, but large Israeli communities as well. Plus, there is a lot of biotech traffic from Boston and San Francisco that has nothing to do with religion; plus a variety of telecom, biotech, banking and real estate companies from Israel that run out of Miami (Ivax, Africa Israel Corp., ECI, Talla-Com), as Israeli companies have always been attracted to basing U.S. ops out of South Florida.
There's also this that skews the numbers heavily towards New York: the tourism market is insanely skewed towards packaged vacations - such as the government-sponsored birthright trips - which are often organized with El Al, and require that people find their own way to New York or Los Angeles on seperate ticket.
FY2011
NYCTLV: 1,250 PDEW
LAXTLV: 202 PDEW
MIATLV: 111 PDEW
SFOTLV: 100 PDEW
CHITLV: 80 PDEW
BOSTLV: 74 PDEW
PHLTLV: 46 PDEW
MIATLV and SFOTLV are two of very few trans-Atlantic markets with 100 PDEW+ not served non-stop; but El Al is probably coming back to South Florida now that the FAA restrictions have been lifted.