--- title: "The airline hub · ORD Airport Guide" description: "Every ORD guide on the airline hub: 6 guides, each answering one question. They include admirals Clubs and the Flagship Lounge at O'Hare." url: "https://ordairportguide.com/guides/the-airline-hub/" updated: "2026-11-01" airport: "ORD" type: "guide" --- > Independent guide, not the official ORD website. All pages: https://ordairportguide.com/llms.txt # The airline hub Every ORD guide on the airline hub: 6 guides, each answering one question. They include admirals Clubs and the Flagship Lounge at O'Hare. Updated November 1, 2026 How ORD works for the airline that runs its hub here: where it checks in, which concourses it flies from, how its connections move between them and what to do when one goes wrong. Each guide answers one question about flying that airline through ORD. ![High white tables and grey stools by the window wall of a Concourse H lounge at O'Hare, with the airfield outside on a grey day.](https://ordairportguide.com/images/ord/concourse-h-gate-h6-lounges-v32-800.webp) [Admirals Clubs and the Flagship Lounge at O'Hare](https://ordairportguide.com/guides/admirals-clubs-flagship-lounge-at-ohare/) Admirals Clubs at Gates G8, L2A and H6/K6, the Flagship at H6/K6, all in Terminal 3. Who gets in and American's $150 Flagship pass. - [Three Admirals Clubs, one beside the Flagship Lounge](https://ordairportguide.com/guides/admirals-clubs-flagship-lounge-at-ohare/#three-admirals-clubs-one-beside-the-flagship-lounge) - [Who gets into the Admirals Clubs](https://ordairportguide.com/guides/admirals-clubs-flagship-lounge-at-ohare/#who-gets-into-the-admirals-clubs) - [Who gets into the Flagship Lounge](https://ordairportguide.com/guides/admirals-clubs-flagship-lounge-at-ohare/#who-gets-into-the-flagship-lounge) - [Getting to Terminal 3 from another terminal](https://ordairportguide.com/guides/admirals-clubs-flagship-lounge-at-ohare/#getting-to-terminal-3-from-another-terminal) - [Sources](https://ordairportguide.com/guides/admirals-clubs-flagship-lounge-at-ohare/#sources) ![The sunburst ceiling and the lit ROTUNDA fascia of the Rotunda between Terminals 2 and 3 at O'Hare, seen from the floor.](https://ordairportguide.com/images/ord/t3-rotunda-floor-v11-800.webp) [Can you walk between O'Hare terminals after security?](https://ordairportguide.com/guides/can-you-walk-between-ohare-terminals-after-security/) Yes between Terminals 1, 2 and 3, which join on the secure side. Terminal 5 needs a bus or the train. The airport's transfer pages give no walking times. - [Terminals 1, 2 and 3 join on the secure side](https://ordairportguide.com/guides/can-you-walk-between-ohare-terminals-after-security/#terminals-1-2-and-3-join-on-the-secure-side) - [Terminal 5 needs the train or the bus](https://ordairportguide.com/guides/can-you-walk-between-ohare-terminals-after-security/#terminal-5-needs-the-train-or-the-bus) - [Checkpoint hours where you land](https://ordairportguide.com/guides/can-you-walk-between-ohare-terminals-after-security/#checkpoint-hours-where-you-land) - [Getting help on the way](https://ordairportguide.com/guides/can-you-walk-between-ohare-terminals-after-security/#getting-help-on-the-way) - [Sources](https://ordairportguide.com/guides/can-you-walk-between-ohare-terminals-after-security/#sources) ![A round table and tan chairs by the window wall in an airline lounge on Concourse G in Terminal 3 at O'Hare.](https://ordairportguide.com/images/ord/t3-g8-admirals-stretch-v15-800.webp) [Connecting through O'Hare on American: how it works](https://ordairportguide.com/guides/connecting-through-ohare-american-how-it-works/) American flies from Terminal 3 at O'Hare, Concourses G, H, K and L. Terminals 1 and 2 are a secure-side walk. Terminal 5 takes a bus or the train. - [Four concourses, one set of checkpoints](https://ordairportguide.com/guides/connecting-through-ohare-american-how-it-works/#four-concourses-one-set-of-checkpoints) - [The Admirals Clubs and the Flagship Lounge](https://ordairportguide.com/guides/connecting-through-ohare-american-how-it-works/#the-admirals-clubs-and-the-flagship-lounge) - [If your next flight leaves from another terminal](https://ordairportguide.com/guides/connecting-through-ohare-american-how-it-works/#if-your-next-flight-leaves-from-another-terminal) - [Landing from abroad at Terminal 5](https://ordairportguide.com/guides/connecting-through-ohare-american-how-it-works/#landing-from-abroad-at-terminal-5) - [When a bag or a connection goes wrong](https://ordairportguide.com/guides/connecting-through-ohare-american-how-it-works/#when-a-bag-or-a-connection-goes-wrong) - [What only American can tell you](https://ordairportguide.com/guides/connecting-through-ohare-american-how-it-works/#what-only-american-can-tell-you) - [Sources](https://ordairportguide.com/guides/connecting-through-ohare-american-how-it-works/#sources) ![White steel columns, diagonal struts and the arched glass roof of a Terminal 1 concourse at O'Hare.](https://ordairportguide.com/images/ord/t2-e7-united-club-stretch-v17-800.webp) [Connecting through O'Hare on United: how it works](https://ordairportguide.com/guides/connecting-through-ohare-united-how-it-works/) United flies from Terminals 1 and 2 at O'Hare. Connect between them on the secure side with no re-screening, and see what only United can tell you. - [Terminals 1 and 2, with a United lounge on all four concourses](https://ordairportguide.com/guides/connecting-through-ohare-united-how-it-works/#terminals-1-and-2-with-a-united-lounge-on-all-four-concourses) - [Between United flights, you walk](https://ordairportguide.com/guides/connecting-through-ohare-united-how-it-works/#between-united-flights-you-walk) - [When the train and the bus come in](https://ordairportguide.com/guides/connecting-through-ohare-united-how-it-works/#when-the-train-and-the-bus-come-in) - [Arriving from abroad at Terminal 5](https://ordairportguide.com/guides/connecting-through-ohare-united-how-it-works/#arriving-from-abroad-at-terminal-5) - [Where United’s baggage offices are](https://ordairportguide.com/guides/connecting-through-ohare-united-how-it-works/#where-uniteds-baggage-offices-are) - [What only United can tell you](https://ordairportguide.com/guides/connecting-through-ohare-united-how-it-works/#what-only-united-can-tell-you) - [Sources](https://ordairportguide.com/guides/connecting-through-ohare-united-how-it-works/#sources) ![The herringbone stone floor of the United Polaris lounge at O'Hare.](https://ordairportguide.com/images/ord/t1-c18-polaris-stretch-v11-800.webp) [The United Polaris Lounge at O'Hare and the Club in Concourse F](https://ordairportguide.com/guides/united-polaris-lounge-at-ohare-club-concourse-f/) Polaris is in Terminal 1 near Gate C18, for international first and business only. The Club in Concourse F is near Gate F9. Hours from the airport's map. - [Polaris: Terminal 1, Concourse C, near Gate C18](https://ordairportguide.com/guides/united-polaris-lounge-at-ohare-club-concourse-f/#polaris-terminal-1-concourse-c-near-gate-c18) - [The Club in Concourse F, near Gate F9](https://ordairportguide.com/guides/united-polaris-lounge-at-ohare-club-concourse-f/#the-club-in-concourse-f-near-gate-f9) - [Which United lounge is nearest your gate?](https://ordairportguide.com/guides/united-polaris-lounge-at-ohare-club-concourse-f/#which-united-lounge-is-nearest-your-gate) - [Moving between the two](https://ordairportguide.com/guides/united-polaris-lounge-at-ohare-club-concourse-f/#moving-between-the-two) - [Day passes](https://ordairportguide.com/guides/united-polaris-lounge-at-ohare-club-concourse-f/#day-passes) - [Sources](https://ordairportguide.com/guides/united-polaris-lounge-at-ohare-club-concourse-f/#sources) ![A silver planter and a stanchion in front of the blue glass wall of a United Club at O'Hare.](https://ordairportguide.com/images/ord/t1-b18-united-club-stretch-v7-800.webp) [United Clubs at O'Hare: which one is nearest your gate](https://ordairportguide.com/guides/united-clubs-at-ohare-which-one-nearest-gate/) O'Hare has five United Clubs, all past security: two in Concourse B, one each in C, E and F. Gates, daily hours and how to get in. - [Gate ranges and the Polaris Lounge](https://ordairportguide.com/guides/united-clubs-at-ohare-which-one-nearest-gate/#gate-ranges-and-the-polaris-lounge) - [Who gets in, and what the airport doesn’t publish](https://ordairportguide.com/guides/united-clubs-at-ohare-which-one-nearest-gate/#who-gets-in-and-what-the-airport-doesnt-publish) - [Coming from another terminal](https://ordairportguide.com/guides/united-clubs-at-ohare-which-one-nearest-gate/#coming-from-another-terminal) - [Sources](https://ordairportguide.com/guides/united-clubs-at-ohare-which-one-nearest-gate/#sources)