Zurich to Franfurt? Travel help please

[ACEparts_com]

Hi, I want to fly from Zurich to Frankfurt in september, anyone know of an airline/website that will let me arrange this? 3 hours have been wasted going nowhere thus far!

[jamoor]

Lufthansa and Swiss airlines fly that route, try kayak.co.uk

[ewenm]

Or there's a direct train www.bahn.de

[Zod]

I've flown it loads of times. What exactly is the issue here?