At Delta Air Lines, mostly 'no' to labor unions

Unions have lost six organizing drives at Delta since 2000, including two by the Association of Flight Attendants, which is trying again.

Year Employee group Workers Union Yes votes* Percent Union wins?

2010 Simulator technicians 91 International Assn. of Machinists 43 47% No

2009 Flight dispatchers 335 Prof. Airline Flight Control Assn. 306 91% Yes

2009 Meteorologists 32 NWA Meteorologists Association 6 19% No

2008 Flight attendants 13,379 Association of Flight Attendants 5,306 40% No

2002 Flight attendants 19,033 Association of Flight Attendants 5,609 29% No

2002 Pilot ground trainers 145 Transport Workers Union 44 30% No

2000 Fleet service 9,804 Transport Workers Union 1,845 19% No

*Includes votes for any union. Previously organized; election decided bargaining agent. Source: National Mediation Board.