Most Consecutive ALCS appearances goes to the Houston Astros that holds the record of 7 straight appearances from 2017 to 2023. Following them, the Oakland Athletics made it to the ALCS consecutively for five years.
A list of baseball teams that consecutively appeared the most in the ALCS: Houston Astros: 7 seasons from 2017 to 2023. Oakland Athletics: 5 seasons from 1971 and 1975. New York Yankees: 4 seasons from 1998 to 2001. New York Yankees: 3 seasons from 1976 and 1978. Baltimore Orioles: 3 seasons from 1969 to 1971. Kansas City Royals: 3 seasons from 1976 to 1978. Oakland Athletics: 3 seasons from 1988 to 1990. Toronto Blue Jays: 3 seasons from 1991 and 1993. Detroit Tigers: 3 seasons from 2011 to 2013. Boston Red Sox: 2 seasons from 2003 and 2004.
Since 2013, they’ve competed in the American League. In the recent six years, the Astros consistently reached the American League playoffs, clinching the World Series title in both 2017 and 2022.
They reached the championship three years consecutively from 1988 to 1990. In total, the A’s have secured 15 pennants in the AL, considering their history as the Philadelphia Athletics and the Kansas City Athletics.
The Yankees hold the record for the most ALCS appearances in 18 seasons, leading the American League. Between 1998 and 2001, they participated in four consecutive AL championships.
From 1969 to 1971, the Orioles consistently made it to the ALCS appearances, marking the longest streak in three years.
The Kansas City Royals made it to the ALCS three times consecutively from 1976 to 1978. However, they only managed to get to the championship twice in a row.
The Blue Jays played in the ALCS for three straight years from 1991 to 1993. During the last two of these years, they won the World Series.
The Detroit Tigers achieved three straight ALCS appearances from 2011 to 2013. In 2012, during this run, they reached the World Series.
The Boston Red Sox achieved ALCS appearances in two consecutive seasons, 2003 and 2004. They did this again in 2007 and 2008.
The Atlanta Braves set the record for the most continuous appearances in the NLCS, spanning from 1991 to 1999.
Here’s a list of teams with the highest number of NLCS showings since 1969: Atlanta Braves: 8 seasons from 1991 and 1999. St. Louis Cardinals: 4 seasons from 2011 to 2014. Philadelphia Phillies: 3 seasons from 2008 to 2010. Los Angeles Dodgers: 3 seasons from 2016 to 2018. Chicago Cubs: 3 seasons from 2015 to 2017. Pittsburgh Pirates: 3 seasons from 1990 to 1992.