11hr 50min Chicago OHare (ORD) to Amman (AMM) by a nonstop flight operated by Royal Jordanian.
It take 4 hours and 50 minutes to St.Louis from Chicago.
15 hours is your answer :)
3 hours
About 12.5 hours.
2 hours.
About 18 hours direct.
It will take about 6.5 hours to drive that 405 miles.
3hours
13hours
10 hrs
18 hours
It takes about 4 hours.