The closest thing I can think of is the system that used to have in Vancouver that transported passengers by bus from cruise ships that had arrived from Alaska directly to the airport, allowing the passengers to skip having to do Canadian Customs at the pier and then again US immigration at the airport. The thing is the passengers still had to go through airport security, so the chokepoint is always going to be airport security.

And the reason it was stopped is that it cost too much money and created more issues than it helped.