United Polaris Lounge in Chicago O'Hare Terminal 1 serves United business class passengers and Star Alliance Gold members on international long-haul departures. ORD is United's primary Midwest hub — UK travellers connecting through Chicago on United metal to US West Coast or Asia-Pacific often transit T1 domestically before a long-haul departure from the same terminal.
The Polaris lounge pairs sit-down dining with shower suites and quiet work zones — a meaningful step above standard United Club buffets. Wi-Fi measured 35 Mbps during our July 2026 visit. Compare against Polaris SFO (/reviews/united-polaris-sfo-review) for West Coast Star Alliance ground product.
Critical limitation: all international flights at ORD depart Terminal 5. If you arrive internationally and connect to a United domestic T1 flight, you cannot reach Polaris without exiting, transferring landside, and re-clearing security. Allow 2+ hours for T5→T1 connections.
Pair with /guides/ord-airport-lounge-guide-2026 and /airports/ord. For UK–US routings, compare ORD against JFK (/reviews/delta-one-lounge-jfk-review) for premium ground product on the East Coast.