World's largest airlines By Scheduled Passengers Carried (Millions) By Scheduled Passengers Carried (Millions)

| Rank_ | Airline | _2012 | _2011 | _2010 | _2009 |
|---|---|---|---|---|---|
| 1 | Delta Air Lines | 164.6 | 163.8 | 162.6 | 161.1 |
| 2 | United Airlines | 140.4 | 141.8 | 145.6 | 144.3 |
| 3 | Southwest Airlines | 134.0 | 127.6 | 106.2 | 101.3 |
| 4 | American Airlines | 107.8 | 107.2 | 105.2 | 104.5 |
| 5 | China Southern Airlines | 86.5 | 80.7 | 76.5 | 66.3 |
| 6 | US Airways | 82.5 | 80.6 | 79.6 | 78.0 |
| 7 | Ryanair | 79.3 | 75.8 | 72.1 | 66.5 |
| 8 | Lufthansa | 74.7 | 65.5 | 58.9 | 55.6 |
| 9 | China Eastern Airlines | 73.1 | 68.7 | 64.9 | 44.0 |
| 10 | Air China | 72.4 | 69.7 | 60.0 | 41.3 |