I'm very familiar with NYC's options and with LHR. You compare JFK with LHR, not EWR or LGA (I suppose you'd compare EWR to Gatwick and LGA to City). To get to

I'm very familiar with NYC's options and with LHR. You compare JFK with LHR, not EWR or LGA (I suppose you'd compare EWR to Gatwick and LGA to City). To get to any reasonable business destination in London (City) area, you take Heathrow Express and then transfer to at least 1 or more tube. That is directly analogous to taking the AirTrain to an express train. When I leave my office on 59th & Lex, I walk to the 53rd street subway station and I'm at Terminal 8 in JFK in exactly 50 minutes, consistently. How is that any worse than LHR? Just like when you're booking a ticket to/from "London", you don't pick Luton if you really mean Heathrow. If my destination was Williamsburg I would pick LGA if at all possible, otherwise JFK. Picking EWR and having to go across the city is not a good plan to start with.