Cal Poly Pomona
($65.4 billion), San billion) were also
Francisco busy air
International Airport ($54.6
billion), and Dallas-Fort Worth International Airport claimed
Airport ($31.2 leadership in
international freight tonnage (2.1 Express, United Parcel Service and
million) in 2007. Domestic air freight was dominated DHL. Figure 4 shows the airports that were most used by
by Federal these three
parcel carriers. Memphis International Airport had the most domestic air freight followed by Louisville International Airport and Indianapolis International Airport.
Figure 4. Major Air Parcel Hubs (2004)
Forster and Regan (2001) characterized the air freight industry as two organizational structures: integrators, who own all assets of production from shipper to consignee, and non-integrators, who forward, carry and deliver cargo. As of 2000, there were some 25,000 forwarders and 700 air cargo carriers worldwide, with 1,500 forwarders and 100 air carriers in the U.S. Leading integrators were FedEx and United Parcel Service (UPS), while airlines such as Lufthansa and United were forwarders. The most active air freight carriers (domestic) in the U.S. in 2004 were FedEx Express, which moved 8.984 million tonne-km of freight, followed by UPS (4.260 million tonne-km), Northwest Airlines (0.949 million tonne-km), China Southern (0.860 million tonne-km), and American Airlines (0.576 million tonne-km). Notice that the ranking blends integrators and non-integrators.