Huh. Google Maps was not showing me that.

EDIT: Oh, wait, misread, I thought you meant a direct train from Grand Central to the airport.

> a direct train from Grand Central to the airport

It’s a single, low-bullshit transfer. Frankfurt Airport also requires a connection for terminals 2 and 3 [1].

[1] https://www.frankfurt-airport.com/en/transport-and-parking/t...