A random search for flights from Zurich (ZRH) to Chicago OHare (ORD) shows:
OPTION 1: 9hr 40min Nonstop
ZRH - ORD Swiss International Air Lines Flt 8 Dep 12:55pm 16Apr,Fri
Flight Duration: 9hr 40min
OPTION 2: 12hr 10min via Copenhagen (CPH) [Cheaper Option]
ZRH - CPH Swiss International Air Lines Flt 1270 Dep 12:20pm 16Apr,Fri
CPH - ORD SAS-Scandinavian Airlines System Flt 943 Dep 03:40pm 16Apr,Fri
Flight Duration: 10hr 35min; Layover Time: 1hr 35min; Total Trip Time: 12hr 10min
976miles
2hr 15min Dublin (DUB) to Zurich (ZRH) by a nonstop flight operated by Aer Lingus.
It's about an hour
65 hours
10 hours
This will come around 7Hrs.
Zurich-Otopeni, direct flight, with Flybaboo: 2 h 15 min.
The distance is only about 175 miles, no need to take a flight.
Between 1h and 1h 20m
7 hours 20 minutes on Swissair
A direct flight from NYC to Chicago will take about 2 hours.
It should take you by plane, 7 hours and 30 minutes.