The Best Seasons of It's Always Sunny in Philadelphia

Last Updated: Feb 8, 2019

Four egocentric friends who run a neighborhood Irish pub in Philadelphia try to find their way through the adult world of work and relationships. Unfortunately, their warped views and precarious judgments often lead them to trouble, creating a myriad of uncomfortable situations that usually only get worse before they get better.

Season 4

#1 - Season 4

First Aired: Sep 19, 2008

The fourth season of It's Always Sunny in Philadelphia, premiered on FX on September 18, 2008. The season contains 13 episodes and concluded airing on November 20, 2008.

star 8.86
152 votes
Season 5

#2 - Season 5

First Aired: Sep 18, 2009

The fifth season of It's Always Sunny in Philadelphia, premiered on FX on September 17, 2009. The season contains 12 episodes and concluded airing on December 10, 2009.

star 8.75
143 votes
Season 6

#3 - Season 6

First Aired: Sep 17, 2010

The sixth season of It's Always Sunny in Philadelphia, premiered on FX on September 16, 2010. The season contains 14 episodes and concluded airing on December 9, 2010 with the hour-long Christmas special. An additional episode called "The Gang Gets Successful" was produced for this season, but was not aired, despite scenes from the episode being included in promotional material for season 6. It was later re-edited with new scenes to create the Season 7 episode "How Mac Got Fat".

star 8.72
129 votes
Season 3

#4 - Season 3

First Aired: Sep 14, 2007

The third season of It's Always Sunny in Philadelphia, premiered on FX on September 13, 2007. The season contains 15 episodes and concluded airing on November 15, 2007.

star 8.67
160 votes
Season 7

#5 - Season 7

First Aired: Sep 16, 2011

The seventh season of It's Always Sunny in Philadelphia, premiered on FX on September 15, 2011. The season contained 13 episodes, and concluded airing on December 15, 2011. The episode "How Mac Got Fat" includes scenes produced during season 6 that featured Mac, before he got fat.

star 8.62
124 votes
Season 9

#6 - Season 9

First Aired: Sep 5, 2013

star 8.59
120 votes

#7 - Season 12

First Aired: Jan 5, 2017

In season twelve, Mac, Dennis, Charlie, Dee and Frank tackle all new adventures that include going to a waterpark, dealing with a Wolf Cola PR nightmare, and actually spending a whole day tending bar!

star 8.50
115 votes
Season 8

#8 - Season 8

First Aired: Oct 12, 2012

The eighth season of It's Always Sunny in Philadelphia, premiered on FX on October 11, 2012. This season consisted of 10 episodes, and concluded airing on December 20, 2012.

star 8.48
126 votes

#9 - Season 10

First Aired: Jan 15, 2015

star 8.45
128 votes
Season 2

#10 - Season 2

First Aired: Jun 30, 2006

The second season of It's Always Sunny in Philadelphia, premiered on FX on June 29, 2006. The season contains 10 episodes and concluded airing on August 17, 2006.

star 8.36
176 votes

#11 - Season 11

First Aired: Jan 7, 2016

star 8.18
149 votes
Season 1

#12 - Season 1

First Aired: Aug 5, 2005

The first season of It's Always Sunny in Philadelphia, premiered on FX on August 4, 2005. The season contains 7 episodes and concluded airing on September 15, 2005.

star 7.98
215 votes

#13 - Season 13

First Aired: Sep 6, 2018

The Gang returns... mostly... in Season 13. Mac, Charlie, Dee, and Frank return to their duplicitous, scheming ways at Paddy’s Pub, while Dennis takes on the new role of father in North Dakota. Even without Dennis, the Gang has its hands full as Charlie hopes to have a child with The Waitress, Mac sets out to understand his newfound sexuality, Dee takes feminism to new heights, and Frank goes to great lengths for the Gang to experience the greatest moment in Philadelphia sports history – an Eagles Super Bowl victory.

star 7.49
59 votes