There are plenty of taxis outside the airports and, for those who were brought up watching 'To The Manor Born', you can book a limo to whisk you to your 5-star hotel suite in comfort (as in most US cities, Carey are the best provider). But public transport is probably your best ticket. Chicago is in fact, very unusually for the US, thoroughly served by public networks of buses and trains. The El Al, a rather spiffing elevated train, is the quickest and cheapest mode of transportation between O’Hare, Midway and The Loop.