Cory6188 wrote:The Airport Express in HKG might take the cake. Not only is it a super easy one seat ride from Hong Kong & Kowloon, with a short walk from the station into the terminal, but you can actually check your bag at the train station in town and then you don't have to drag it on the train - not sure it gets much more seamless than that.
From my point of view, anything that is labeled "Express" does not get the prize. It does not only mean that is more expensive, but also that it is disconected from the rest of the city transit system in terms of tickets, etc. You cannot get in one ticket anywhere on the city.
The best approach is certainly the way Dutch/German/Swiss do. The airport is just another part of the city, so you don't need anything "express" or "Special" if you have an excellent public transportation network like they do. In ZRH you can even see people shopping on the supermarkets on Sunday since it is one of the few places in the country where they are open that day.
That might be the ultimate sign of integration of the airport on a regional scale. The airport is such a common place (e.g. you live in a wealthy country where everybody flies multiple times a year) that doing your grocery shopping there is just another option.