Seasons Team Last pennant 49 Washington Nationals Never (franchise started in 1969) 41 Seattle Mariners Never (franchise started in 1977) 38 Pittsburgh Pirates 1979 35 Milwaukee Brewers 1982 (never since joining NL in 1998) 34 Baltimore Orioles 27 Cincinnati Reds 1990 27 Oakland Athletics 1990 26 Minnesota Twins 1991 24 Toronto Blue Jays 1993 19 San Diego Padres 1998 18 Atlanta Braves 1999 16 Arizona Diamondbacks 2001 15 Los Angeles Angels 2002 14 Miami Marlins 2003 12 Chicago White Sox 2005 10 Colorado Rockies 2007 9 Tampa Bay Rays 2008 8 New York Yankees 2009 8 Philadelphia Phillies 2009 6 Texas Rangers 2011 5 Detroit Tigers 2012 St. Louis Cardinals 2013 Boston Red Sox 2013 San Francisco Giants 2014 Kansas City Royals 2015 New York Mets 2015 Chicago Cubs 2016 Cleveland Indians 2016 0 Houston Astros 2017 0 Los Angeles Dodgers 2017
baseball teams that have never been to the world series
Washington Nationals Seattle Mariners