Since 2009, the Dodgers are the only National League team that have won consecutive pennants

The Arizona Diamondbacks defeated the Philadelphia Phillies in Game 7 of the National League Championship Series, keeping the team one victory away from making it to the World Series for the second straight season.

Dodgers Remain Last National League Team To Win Consecutive Pennants Since  2009 - SportsCity.com

As a result, the Los Angeles Dodgers are still the only team to have won the NL pennant in back-to-back years since 2009. The Dodgers became the first team since the 2008–2009 Phillies to make it to the Fall Classic in back-to-back seasons when they completed the feat in 2017 and 2018.

It was the Dodgers’ first World Series appearance since 1988. After defeating the reigning champion Chicago Cubs in the NLCS and sweeping the Arizona Diamondbacks in the NLDS, they punched their ticket that year.

2009 Los Angeles Dodgers Roster - DodgerBlue.com

The Houston Astros went on to win the World Series in seven games against the Dodgers. At the time, the game was regarded as one of the greatest in MLB history, but Houston’s sign-stealing controversy has since overshadowed it.

After defeating the Atlanta Braves and Milwaukee Brewers in the first two postseason rounds, Los Angeles made a return trip to the Fall Classic in 2018. But the Boston Red Sox outmatched the Dodgers, and they ended up losing in five games.

Dodgers-Braves NLCS Game 6 is LA's 87th playoff elimination game - Los  Angeles Times

The 2020 season was cut short by the epidemic, but the Dodgers overcame their early struggles and won their first World Series since 1988, when they defeated the Tampa Bay Rays in six games.

The Dodgers and Astros’ World Series run was ended.
There was one Dodgers streak that ended and another that continued. For the first time since 2017, the Dodgers and Astros are not participating in the World Series this year.

Los Angeles Dodgers | History & Notable Players | Britannica

The Astros represented the American League in 2017, 2019, 2021, and 2022, while the Dodgers appeared in 2017, 2018, and 2020.

This year, the Astros were one victory away from returning to the Fall Classic, but they dropped their next two games against the Texas Rangers at home in the AL Championship Series.