What's the best way to get from the NW suburbs to ORD using public transportation?

My current plan is to take Metra from Crystal Lake to Des Plaines. From there, catch a CTA bus which connects to ORD's ATS.

Is there a better way? Making two bus connections in possibly bad January weather doesn't appeal to me. I see that Metra connects to CTA's ORD train at Jefferson Park. Would going that far in add a lot of time to the trip? Also the Metra train from Elgin goes to River Grove, but I don't know if you can connect to ORD from there.

I can use either the Elgin or Crystal Lake Metra stations. Thanks for your help.