The check-in process at United Airlines Chicago O'Hare International Airport is efficient and seamless, particularly for passengers utilizing the automated kiosks in Terminal 1. The kiosks are easy to use, reducing the waiting time considerably. For premium cabin passengers or those with frequent flyer status, the Premier Access counter is an excellent choice. Baggage drop-off is speedy, and staff are usually very courteous, making it a quick and hassle-free experience. But during peak travel periods, the standard check-in queues are long, so be sure to get there early. For passengers who use the United app, real-time check-in and baggage tracking updates add to the experience, making it even more hassle-free. Overall, United Airlines at Chicago O'Hare offers a reliable and smooth check-in process.