It's Always Sunny in Philadelphia

The BEST seasons of It's Always Sunny in Philadelphia

Every season ever - ranked by fan votes!

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.

Last Updated: 6/20/2022Network: FXX
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Season 4
star
8.73
309 votes

#1 - Season 4

First Aired 9/19/2008

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.

Season 5
star
8.69
287 votes

#2 - Season 5

First Aired 9/18/2009

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.

Season 6
star
8.57
268 votes

#3 - Season 6

First Aired 9/17/2010

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".

Season 7
star
8.54
257 votes

#4 - Season 7

First Aired 9/16/2011

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.

Season 8
star
8.48
263 votes

#5 - Season 8

First Aired 10/12/2012

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.

Season 9
star
8.47
249 votes

#6 - Season 9

First Aired 9/5/2013

The ninth season of It's Always Sunny in Philadelphia, premiered on FXX on September 4, 2013. This season consisted of 10 episodes, and concluded airing on November 6, 2013.

Season 3
star
8.46
333 votes

#7 - Season 3

First Aired 9/14/2007

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.

Season 10
star
8.30
251 votes

#8 - Season 10

First Aired 1/15/2015

The tenth season of It's Always Sunny in Philadelphia, premiered on FXX on January 14, 2015. This season consisted of 10 episodes, and concluded airing on March 18, 2015.

Season 12
star
8.23
236 votes

#9 - Season 12

First Aired 1/5/2017

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!

Season 2
star
8.17
375 votes

#10 - Season 2

First Aired 6/30/2006

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.

Season 11
star
8.11
277 votes

#11 - Season 11

First Aired 1/7/2016

The eleventh season of It's Always Sunny in Philadelphia, premiered on FXX on January 6, 2016. This season consisted of 10 episodes, and concluded airing on March 9, 2016.

Season 1
star
7.68
456 votes

#12 - Season 1

First Aired 8/5/2005

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.

Season 13
star
7.43
207 votes

#13 - Season 13

First Aired 9/6/2018

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.

Season 14
star
7.39
176 votes

#14 - Season 14

First Aired 9/26/2019

The 14th season guns for the Best 14th Season accolade as the Gang goes to extremes for the role – Mac learns a new language, Charlie does a period piece, Dennis attempts a one-act play, Dee cuts her hair, and Frank performs a death scene.

Season 15
star
7.19
110 votes

#15 - Season 15

First Aired 12/2/2021

In season fifteen, the gang finds themselves at a crossroads in this strange new world in the wake of Covid-19 and all things 2020. The rules are changing quicker than anyone can keep up with, despite herculean efforts from Mac, Charlie, Dennis, Dee, and Frank to continue business as usual. They must also now face the music and decide who they’ll become in the cultural upheaval that is 2021.