Originally Posted by
Cymro
Sadly the ICE isn't as cheap or as frequent as the S-Bahn, so it's not all good news even if it does help with your particular problem (and hence I agree with the Stuttgart-based poster who says they'll switch airlines). However, for a big part of the region, FRA, BSL, and MUC are viable alternatives.
My first time at STR earlier this year and thought it was a pleasant airport. By contrast, FRA and MUC are on my avoid list for being unpleasant to say the least. If I were to travel to STR again next year, I too would switch airlines.