Much easier than the weekend.

Weekends!  Please come back to Chicago Kit...over a weekend!  If not, the next best option for me, as a suburbanite, is a suburban leg to your visit. Weekday traffic in the city is tough

Generally Saturdays early in the day are best for me but sometimes I'll go for a weekday tryst. Everybody has a different life, I don't think you can generalize.

during the week it is much easier to say your working late.  Its hard to come up with excuses for get aways on a weekend.