Airline shares are down marginally today, girding themselves for air travel disruptions as...

|By:, SA News Editor

Airline shares are down marginally today, girding themselves for air travel disruptions as Tropical Storm Isaac approaches New Orleans. United (UAL -0.2%) and Southwest LUV -1.2% have already announced plans to cancel flights out of New Orleans on Tuesday and Wednesday. Cancellations will reportedly take effect starting at midnight. DAL DAL -0.3%, AAMRQ.PK -3.2%