United Lounge Access
United Airlines is one of the largest airlines in the United States and the world. A founding member of Star Alliance, United operates the MileagePlus frequent flyer program. United operates their United Club and Polaris Lounge locations in the US and worldwide, including their hub at ORD.
United Airlines operates around 45 United Club locations, along with Global First (soon-to-be Polaris) Lounge locations at their premier hubs. Most are located within the United States, namely ORD, though there are several international locations as well.