Learn more about the milestone:

O’Hare is officially America’s busiest airfield. In 2025, 857,392 aircraft took off or landed at ORD, connecting Chicago to the world. Grateful for our airline partners and frontline teams who keep us moving.

CHI CITY! 📸: dmarksupnorth

Guess the year this photo was taken 👇 And if you've got a memory of your own at O'Hare, we want to hear! Share your story, photo or video with us at https://t.co/SUCJtht7uB, for a chance to win a prize. #MyOHareMoment

Notice the mix of aircraft sizes in this model of The New Concourse D? That's because the 19 new gates will feature MARS flexibility to accommodate different aircraft sizes, increasing operational efficiency and reducing layover time for passengers. #ORDNext

Want to know more about airport development, new air service, events and more happening in 2026 at Chicago's airports? Keep up with the latest news at O'Hare and Midway by signing up for our newsletter: https://t.co/gOU42wKyoR

Nighttime ops from the ATC tower. How many planes can you count? 😅

Team ORD proudly wears blue in honor of #WearBlueDay and stands in solidarity with the survivors of human trafficking. The @DHSBlueCampaign raises awareness and provides the necessary resources so we can all help prevent this heinous crime. Join the fight: https://t.co/ZyJhclPOfM

NOW BOARDING: Daily, nonstop service to Green Bay, WI via United and American Airlines. Thanks for coming.

Gameday vibes. IT'S CHICAGO YEAH! 🐻 ⬇️ 📽️: chiheliguy

New @qatarairways F1 livery making an appearance in Chicago. 👀 📸: ord_nate

Once upon a time, Princess Diana had her very own O'Hare Moment. As we continue to look back and celebrate special moments like this, we want to honor YOUR story as part of O'Hare's legacy. Share your #MyOHareMoment at https://t.co/SUCJtht7uB for a chance to win $500.

January is National Human Trafficking Prevention Month. Learning the signs and building strong connections are key to prevention. Explore 10 things you can do to help #EndTrafficking: https://t.co/W7vnVylYAm #Partner2Prevent

Cleared for takeoff. 🫡 🛫

Double the news, double the options! @AmericanAir and @United announced new service to cities, including Erie (ERI), Tri-Cities (TRI) and Lincoln (LNK). Visit https://t.co/5Se6uEDWvA for more on AA's service & https://t.co/H2ViSq7M5k for more on UA's service.

Taking one last look at some of our favorite moments captured in 2025 by our wonderful passengers and employees. 😮‍💨👌 📸: aviation_lover356; jc_aviation11; gatetoskyblog; @AviationXlrs

O’Hare has always been full of favorite memories. Every gate, every goodbye, every reunion. Every gate, every goodbye, every reunion - what do you remember most? Share your #MyOHareMoment: https://t.co/SUCJtht7uB

Global cargo on the move. 🌎 📽️: asr.spotter

Wishing you all a warm and happy holiday season! With love from Chicago. 🎄💙 ✈️

Don't be like the McCallisters. Double-check you've got your kid before heading to the gate... especially if their names KEVIN!!!