How long would it take to get from arrival on United to departure in Southwest at O’Hare un Chicago?
It's terminal 5 and from there anyone will help you.
So sorry i wouldn't know for address or location I'm knew at flying by myself I'm so sorry but if you go to the airport everyone is best at customer service you may ask they will guide you
Not sure. There are 3 separated Terminals. It must be in one of them. I landed at T3, which is international. United had also domestic on Terminal 1, there are free frequent old shuttle busses between each Terminal.
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