Two trains will not operate: No. 1216 and No. 1244. Train No. 1238 will make more stops to make up for No. 1244.
On the Metra website, customers were asked to "Please listen to platform announcements for the location of your train."
Officials say the cancellations are due to an overnight freight traind derailment at Cicero. Two of the three tracks are now available for Tuesday's morning rush hour, according to Metra. Customers should plan on 20 to 30 minute delays.
It isn't clear what led the freight train to derail around 10 p.m. Monday.