There are a few good part-time and flexible MBA programs in the Chicago area. Maybe start by looking at these schools:

Depaul
Loyola
Chicago - Liautaud

And Booth has probably the best part-time MBA program in Chicago, but your probably already know that.

In general, these programs recruit early- to mid-level working professionals who do not want to make huge career leaps. The ROI is usually much less than that of full-time MBA programs.

However, your history, in that you got some of your work your work experience before you did your degree, and that it's not a typical undergraduate degree at that, may be problematic for some of these schools. To be competitive at most of these part-time MBA programs, you'll probably need at least 4-5 years of *post-undergrad* work experience, if not more.They may make exceptions, but you'll have to check directly with the business schools.

Thanks Ralph !!

Could you please also tell me how much salary package should I expect from these suggested colleges.

It's really hard to say, since unlike for full-time MBA programs, for most part-time programs business schools don't usually publish career data; and if they do, the salary increases are much less than for full-timers. That's just the nature of these kinds of programs though.

For instance, data collected in the Businessweek rankings suggest that Loyola part-timers get around a 40 percent salary bump, for instance.

But it will depend on your own personal goals and expectations. If you are interested in changing either career function or industry, a full-time MBA is probably better.

Thanks Ralph !