Why are there no flights on A380s from a big airport like Chicago O’Hare?

The double-decker A380 requires specially sized gates, boarding equipment, and maintenance. O’Hare is not yet equipped to deal with this type of aircraft. The following U.S. airports are equipped to handle A380s: Atlanta, Dallas/Ft. Worth, Houston Intercontinental, LAX, Miami, JFK, San Francisco, and Washington Dulles.