The ticker symbol for Southwest Airlines is LUV and it is traded on the New York Stock Exchange.
Atlantic Southwest Airlines is wholly owned by SkyWest Airlines. Skywest trades on the NASDAQ under the ticker symbol SKYW.
LUV
The ticker symbol for Continental Airlines is CAL and it is traded on the New York Stock Exchange.
The ticker symbol for Northwest Airlines is NWA and it trades on the New York Stock Exchange.
Taca Airlines is a private company and as such does not have publicly traded stock. There is no ticker symbol for this airline.
Ticker symbol for Continental Airlines is "CAL" and is listed on the NYSE.
The symbol for Southwest Airlines Company in the NYSE is: LUV.
Ameerican Airlines
Because, "the airline has its headquarters on the grounds of Dallas Love Field in Dallas, Texas," hence LUV. Source is linked.
American Airlines is a subsidiary of AMR Corporation which is listed on the New York Stock Exchange under the symbol AMR. 5/17/2012 - AMR has changed to AAMRQ on 01/05/2012 - today the stock price is at .50 since they are in bankruptcy
The symbols for United Airlines is referred to as a blue and red tulip. The ticker symbol for the stock markets for this airlines is UAL.