Originally Posted by
oliver2002
In Germany most airlines arriving in FRA offer rail & fly, where for a small addition of 35-40€ you can go to QYG, ie to all of Germany in 1st or 2nd class.:
https://accesrail.com/products/db-rail-fly/
LH has been offering AirRail (now LH Express Rail) on LH flight numbers from/to FRA and Köln, Stuttgart, Düsseldorf, Dortmund, Karlsruhe & Mannheim.
We were referring to TGV'Air, which is similar but different from DB Rail&Fly.
I don't think Rail&Fly will get you to XDB from
any airport.