CHICAGO, 2015-7-3 — /Travel PR News/ — The Chicago Department of Aviation (CDA) anticipates more than 1.6 million passengers will travel through Chicago’s airports for the Fourth of July holiday travel period from today, July 2, 2015 through Tuesday, July 7, 2015. Over the six-day period, airlines’ passenger projections have increased at O’Hare by 4.5 percent… Read the full press release