Chicago and airline leaders kick off the start of construction on O'Hare's new Concourse D. Marni Pyke/mpyke@dailyherald.com

Chicago leaders broke ground on O'Hare International Airport's latest concourse Monday, a project that will bring new gates and flights, officials said.

Concourse D, a $1.3 billion investment, is on the southwest end of the airfield and will initially connect with Terminal 1's Concourse C by a bridge.

The 19 new gates will accommodate a variety of aircraft from narrow-bodied to international wide-bodied, which will reduce layovers and allow for greater efficiency.

“Today we begin building for the future of O'Hare,” Mayor Brandon Johnson said.

“With Concourse D, we take the next bold step forward,” he said. “We will enhance the O'Hare experience from curb to gat

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