Season 1

7 episodes · Aug 4, 2005 · 7.9

Season 2

10 episodes · Jun 29, 2006 · 8.3

Season 3

15 episodes · Sep 13, 2007 · 8.4

Season 4

13 episodes · Sep 18, 2008 · 8.4

Season 5

12 episodes · Sep 17, 2009 · 8.4

Season 6

13 episodes · Sep 16, 2010 · 8.1

Season 7

13 episodes · Sep 15, 2011 · 8.0

Season 8

10 episodes · Oct 11, 2012 · 8.3

Season 9

10 episodes · Sep 4, 2013 · 8.0

Season 10

10 episodes · Jan 14, 2015 · 8.1

Season 11

10 episodes · Jan 6, 2016 · 7.8

Season 12

10 episodes · Jan 4, 2017 · 7.9

Season twelve throws *It's Always Sunny in Philadelphia*’s gang headfirst into a fresh wave of chaotic escapades. From the sun-soaked absurdity of a disastrous water park visit to navigating a full-blown public relations crisis involving Wolf Cola, Mac, Dennis, Charlie, Dee, and …

Season 13

10 episodes · Sep 5, 2018 · 7.4

Season 13 throws the familiar chaos of Paddy’s Pub back into high gear—though things aren't quite as they used to be. Mac, Charlie, Dee, and Frank are back to their signature brand of scheming and mischief, keeping the bar buzzing with their antics. Meanwhile, Dennis has traded i…

Season 14

10 episodes · Sep 25, 2019 · 7.5

Get ready for *It’s Always Sunny in Philadelphia* like you've never seen it before! Season 14 throws the Gang headfirst into a chaotic quest for theatrical glory – and, naturally, personal validation. Mac is tackling an entirely new language to prove his worth, while Charlie dive…

Season 15

8 episodes · Dec 1, 2021 · 7.7

Season fifteen throws the gang headfirst into a world irrevocably altered by Covid-19 and everything that defined 2020. As the ground shifts beneath their feet – with rules and expectations changing at dizzying speed – Mac, Charlie, Dennis, Dee, and Frank stubbornly attempt to ma…

Season 16

8 episodes · Jun 7, 2023 · 8.1

Season sixteen finds Ronald "Mac" MacDonald, Charlie Kelly, Dennis Reynolds, Dee Reynolds, and Frank Reynolds adrift in 2023, desperately clinging to memories of what they think the “good old days” were. The challenges pile up: Mac’s grappling with a fresh wave of allergies and t…

Season 17

8 episodes · Jul 8, 2025 · 7.5

Season 17 of *It’s Always Sunny in Philadelphia* finds the Gang chasing their usual twin obsessions: cold, hard cash and a taste of something resembling respectability – a pursuit as familiar to viewers as it is destined for disaster. While their relentless greed and manipulative…

Season 18

10 episodes · Aug 17, 2026 · 7.6