YEAR WINNER
2014 none
2013 none
2012 none
2011 none
2010 none
2009 none
2008 none
2007 none
2006 none
2005 none
2004 none
2003 none
2002 none
2001 none
2000 none
1999 none
1998 none
1997 none
1996 none
1995 none
1994 none
1993 none
1992 none
1991 none
1990 none
1989 Alaska
1988 USAir
1987 Singapore
1986 Piedmont
1985 American
1984 Northwest
1983 USAir
1982 Southwest
1981 Frontier
1980 Delta
1979 none
1978 Aer Lingus
1977 Frontier
1976 Swissair
1975 North Central
1974 Delta