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The Best Seasons of 'It's Always Sunny in Philadelphia'

Updated February 14, 2020 5.5k votes 1.7k voters 131.4k views14 items

List RulesRank the seasons of It's Always Sunny in Philadelphia based on quality.

This list of the best seasons of It's Always Sunny in Philadelphia is listed from best to worst with DVD cover pictures when available. IASIP fans will also enjoy Mac's most bicurious moments and insane fan theories about the show. Hardcore fans of the show often argue over what the greatest season of It's Always Sunny in Philadelphia is, which is exactly why this ranked list was created. The best Always Sunny episodes and the top 10 Always Sunny episodes are all a part of the best seasons of Its Always Sunny in Philadelphia. 

It's Always Sunny in Philadelphia is arguably one of the most hilarious situational comedies on television today. The show follows the lives of "The Gang," a group of self-centered, arguably sociopathic friends who run an Irish pub in South Philly. Starring Danny DeVito, Charlie Day, Rob McElhenney, Kaitlin Olson, and Glenn Howard, it's nearly impossible to pick which season of It's Always Sunny is truly the best.  

Every season of It's Always Sunny in Philadelphia has at least one memorable episode, so it isn't necessarily easy to figure out what the top season is. If you want to answer the questions, "What is the best season of It's Always Sunny in Philadelphia?" and "Which season of It's Always Sunny in Philadelphia is the best?" then this list will have you covered. Vote up the best seasons of It's Always Sunny in Philadelphia below.

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  • Photo: FXX

    The eighth season of It's Always Sunny in Philadelphia premiered on October 11, 2012 and contains 10 episodes. This season finds the gang dealing with family health crises.

    This season features several unforgettable episodes including: "The Maureen Ponderosa Wedding Massacre," "Charlie's Mom Has Cancer," and "The Gang Dines Out."

    Memorable moments from Season 8 include:

    • Frank and Charlie give an underhanded tribute to Mac and Dennis while dining out.
    • Charlie's mom is diagnosed with lung cancer.
    • The gang attends a McPoyle wedding.
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  • Photo: FXX

    The ninth season of It's Always Sunny in Philadelphia premiered on September 4, 2013 and contains 10 episodes. This season contained the series' 100th episode.

    This season features several unforgettable episodes including: "Mac and Dennis Buy a Timeshare," "Flowers for Charlie," and "The Gang Squashes Their Beefs."

    Memorable moments from Season 9 include:

    • Mac treats the gang to a religious experience.
    • Dee and Charlie join a pyramid scheme.
    • Frank advocates for guns.
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  • Photo: FXX
    7

    It's Always Sunny in Philadelphia - Season 12

    The twelfth season of It's Always Sunny in Philadelphia premiered on January 4, 2017 and contains 10 episodes. This season finds the gang examining their own crimes.

    This season features several unforgettable episodes including: "Old Lady House: A Situation Comedy," "Making Dennis Reynolds a Murderer," and "A Cricket's Tale."

    Memorable moments from Season 12 include:

    • Maureen is found dead.
    • Dennis becomes a stripper.
    • Charlie finally wins over The Waitress.
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  • Photo: FXX

    The tenth season of It's Always Sunny in Philadelphia premiered on January 14, 2015 and contains 10 episodes. 

    This season contains several unforgettable episodes including: "The Gang Group Dates," "Charlie Works," and "The Gang Goes on Family Fight."

    Memorable moments from Season 10 include:

    • The gang trying to drink 70 beers during a flight.
    • Psycho Pete returns from a mental institution.
    • Keegan-Michael Key guest stars as a game show host

     

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