BY Krista Ercin-Maurer |

Converging Flight Paths

Infographic from The New York Times – Published: September 27, 2010
By KARL RUSSELL/The New York Times

The deregulation of the airline industry in 1978 led to a wave of mergers that continues to this day. But even as the legacy carriers have been consolidating and growing, they have been losing market share to low-cost carriers. Two of them, SouthWest and AirTran, have just agreed to merge and carried the most passengers in 2009 combined.

Note: Some airlines that merged with others are not shown because their passenger data was not available
Sources: American Transport Association (passenger data 1975-89); Bureau of Transportation Statistics (passenger data 1990-2009)