This topic has come up at least once before (with that said, I can't find the thread). If you travel predominantly within the U.S., it's a new concept but much more common in Europe and (the more-developed countries of Asia) where passenger rail is an essential and vital service and is integrated with air travel.

It's encouraging when you consider ATL, PHL and DCA were probably the only U.S. airports 20 years ago which had in or near terminal rail transport. Within the last 10(?) years, EWR, PDX, SFO, MSP, ORD, MDW, JFK & BWI (BWI and JFK required shuttle busses - BOS and MIA still do) got in or near terminal rail transit. SEA should have light rail in a few years.


It'd seem that way but I think that's limited to the major airports and not secondary ones. There's quite a few in northern Japan where even bus shuttles are limited. Japan's infrastructure pork barrel spending isn't quite limtiless.