Southwest is largest US domestic airline, American is largest international US airline in Oct-2009

US Bureau of Transportation Statistics (BTS) stated (14-Jan-2010) Southwest remained the largest US airline in Oct-2009, ranked by domestic scheduled enplanements. Details include:

• Southwest : 8.8 million, +2.5% year-on-year;
• American: 5.6 million, -4.6%;
• Delta: 4.8 million, -6.3%;
• United: 3.8 million, -10.4%;
• US Airways: 3.8 million, -5.0%;
• Continental: 2.7 million, -1.0%;
• Northwest: 2.5 million, -12.9%;
• AirTran: 2.0 million, +1.0%;
• SkyWest: 1.8 million, +10.1%;
• JetBlue: 1.6 million, +3.8%.

Meanwhile, American Airlines was the largest US airline, ranked by international scheduled enplanements. Details include:

• American: 1.5 million, -2.6%;
• Delta: 951,300, +3.4%;
• Continental: 864,600, -0.3%;
• United: 859,000, -1.7%;
• Northwest: 604,700, -27.2%;
• US Airways: 410,000, +0.3%;
• JetBlue: 170,400, +66.9%;
• ExpressJet: 157,000, +17.0%;
• SkyWest: 111,700, +4.2%;
• American Eagle: 108,600, +35.7%. [more]