Largest Airlines:
Southwest - 101,921,000 passengers in 2008
American Airlines - 92,772,000 passengers in 2008
Delta Airlines - 71,843,000 passengers in 2008
United Airlines - 63,070,000 passengers in 2008
USAirways - 54,776,000 passengers in 2008
Northwest Airlines - 49,671,000 passengers in 2008
Continental Airlines - 46,919,000 passengers in 2008
AirTran Airways - 24,574,000 passengers in 2008
JetBlue Airways - 21,824,000 passengers in 2008
SkyWest Airlines - 20,668,000 passengers in 2008
Republic Airways - 18,916,000 passengers in 2008
Alaska Airlines - 15,047,000 passengers in 2008
Frontier Airlines - 10,579,000 passengers in 2008
Hawaiian Airlines - 7,800,000 passengers in 2008
Atlantic Southeast - 3,800,000 passengers in 2008
Midwest Airlines - 2,900,000 passengers in 2008
