AdvertisementWhen Airlines Depart Cities, Businesses May FollowDecember 09, 2011Ann ThompsonfacebookEmailLambert-St. Louis International Airport lost American Airlines as a hub in 2003; the airport's daily flights dropped from nearly 600 in 2001 to 250 today. Like other cities it's looking for a way to boost traffic, and officials are planning to make it a cargo hub. (AP)