Chicago aviation officials are warning that the transit system at O'Hare International Airport that moves travelers around the facility won't be operating at night through Friday morning.
The Chicago Department of Aviation says the Airport Transit System train won't operate from 11 p.m. to 5 a.m. because of construction. Aviation officials say shuttle buses will be available between O'Hare airport parking lots and terminals. They're asking passengers to allow extra time for travel between terminals and parking lots.
More overnight closures are expected after the Fourth of July travel period on July 9.