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The Best Episodes Of 'It's Always Sunny In Philadelphia' 

Ranker TV
Updated November 27, 2019 8.9k votes 564 voters 6.5k views 155 items

There are so many funny episodes of It's Always Sunny in Philadelphia, but which ones really stand out? Do you like "Charlie's Work" the best, or is "The Gang Gets Invincible" the funniest episode of It's Always Sunny in Philadelphia? To determine once and for all what the best episodes of It's Always Sunny in Philadelphia are, let's rank every It's Always Sunny in Philadelphia episode from best to worst.

It's Always Sunny in Philadelphia on FX stars Charlie Day, Glenn Howerton, Rob McElhenney, Kaitlin Olson, and Danny DeVito. The sitcom series follows the group friends who run Paddy's Pub in South Philadelphia. With season 13 and 14, It's Always Sunny in Philadelphia is set to tie for the longest-running live-action sitcom ever in American television (The Adventures of Ozzie and Harriet).

Vote up your favorite episodes of It's Always Sunny in Philadelphia, and vote down any bad episodes that you really didn't enjoy, despite how much you love the series as a whole. It can be painful to put one It's Always Sunny episode over the other when there are so many good ones, which is why you can vote on however many episodes you like. It doesn't matter if you're a believer of the D.E.N.N.I.S System, or worship at the alter of Pepe Silvia - just vote up your favorite episodes and don't be a jabroni.

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list ordered by
1
The Nightman Cometh is listed (or ranked) 1 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
Episode: 13, Season: It's Always Sunny in Philadelphia - Season 4

Original Airing: November 20, 2008

Season 4, Episode 13

Charlie, with the help of the rest of the gang, stages a rock opera based on his song "Nightman."

2
Charlie Work is listed (or ranked) 2 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'

Original Airing: February 4, 2015

Season 10, Episode 4

When a surprise health inspection falls on the same day as one of the gang's less hygienic schemes, Charlie tries to keep the gang working together to make sure Paddy's makes the grade.

3
The D.E.N.N.I.S. System ... is listed (or ranked) 3 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The D.E.N.N.I.S. System Episode: 10, Season: It's Always Sunny in Philadelphia - Season 5

Original Airing: November 19, 2009

Season 5, Episode 10

Dennis reveals his full proof system for seducing any woman to the rest of the gang, but none of them can seem to grasp it.

4
Dennis and Dee Go on Wel... is listed (or ranked) 4 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
Dennis And Dee Go On Welfare Episode: 3, Season: It's Always Sunny in Philadelphia - Season 2

Original Airing: July 6, 2006

Season 2, Episode 3

Dennis and Dee get out of the bar business.

After quitting their job due to Frank's continuing interference, Dennis and Dee decide to seek alternative income by going on welfare. Meanwhile, Mac and Charlie must now bear the consequences of their friends’ departures from the business.

5
Chardee MacDennis: The G... is listed (or ranked) 5 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
Chardee MacDennis: The Game Of Games Episode: 7, Season: It's Always Sunny in Philadelphia - Season 7

Original Airing: October 27, 2011

Season 7, Episode 7

What's The Gang to do on a rainy day but play the most twisted (and self-made) board game ever. Dee and Dennis square off against Mac, Charlie and Frank in this battle of wits, wild cards and wine.

6
The Gang Goes To A Water... is listed (or ranked) 6 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'

Original Airing: January 11, 2017

Season 12, Episode 2

The gang takes a trip to a local waterpark, ripe with personal agendas and ulterior motives.

7
The Gang Buys a Boat is listed (or ranked) 7 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Buys A Boat Episode: 3, Season: It's Always Sunny in Philadelphia - Season 6

Original Airing: September 30, 2010

Season 6, Episode 3

The gang attempts to open themselves up to the adventures of the sea after they purchase their 'new' boat.

8
Mac and Dennis Move To T... is listed (or ranked) 8 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'

Original Airing: February 3, 2016

Season 11, Episode 5

Mac and Dennis move to the suburbs for the cheap rent and open spaces but learn they may be meant for city life.

9
The Gang Solves the Gas ... is listed (or ranked) 9 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Solves The Gas Crisis Episode: 2, Season: It's Always Sunny in Philadelphia - Season 4

Original Airing: September 18, 2008

Season 4, Episode 2

Mac, Dennis, and Charlie take advantage of rising gas prices by investing in barrels of gasoline and selling them door to door. Dee and Frank decide to expose Bruce Mathis as a terrorist leader when they find out that he plans to give their money to a Muslim community center.

10
Sweet Dee's Is Dating A ... is listed (or ranked) 10 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'

Original Airing: October 11, 2007

Season 3, Episode 9

Dee may finally find true love when she dates a famous local rapper, who may or may not be mentally retarded. Inspired by the success of Dee’s mentally challenged boyfriend, Mac, Dennis, Charlie, and Frank decide to start their own band.

11
The Gang Tries Desperate... is listed (or ranked) 11 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Tries Desperately To Win An Award Episode: 3, Season: It's Always Sunny in Philadelphia - Season 9

Original Airing: September 18, 2013

Season 9, Episode 3

Tired of failing to be recognized for their years of service in the bar industry, the gang changes their ways to give the patrons what they think they want.

12
The Gang Gets Invincible... is listed (or ranked) 12 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Gets Invincible Episode: 2, Season: It's Always Sunny in Philadelphia

Original Airing: September 13, 2007

Season 3, Episode 2

When the Philadelphia Eagles hold open try-outs a la the movie 'Invincible,' Mac, Dennis, and Dee use the event for their own personal competition, while Frank and Charlie tailgate the try-outs and have an altercation with the McPoyles.

13
The Gang Goes to the Jer... is listed (or ranked) 13 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Goes To The Jersey Shore Episode: 2, Season: It's Always Sunny in Philadelphia - Season 7

Original Airing: September 22, 2011

Season 7, Episode 2

Dee and Dennis take the gang to their favorite childhood vacation spot where things aren't quite how they remember. While Dee and Dennis see the seedy side of the Jersey Shore, Mac, Frank and Charlie have the nights of their lives.

14
Paddy's Pub: Home of the... is listed (or ranked) 14 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
Paddy's Pub: Home Of The Original Kitten Mittens Episode: 8, Season: It's Always Sunny in Philadelphia - Season 5

Original Airing: November 5, 2009

Season 5, Episode 8

When a merchandising convention comes to town, the gang tries to develop marketable products in an attempt to build the Paddy's brand.

15
The Gang Beats Boggs is listed (or ranked) 15 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'

Original Airing: January 14, 2015

Season 10, Episode 1

Mac oversees the gang while they compete to break Wade Boggs’ legendary beer drinking record.

16
The Gang Gets Quarantine... is listed (or ranked) 16 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'

Original Airing: October 16, 2013

Season 9, Episode 7

When a severe flu outbreak sweeps Philadelphia the gang voluntarily quarantine themselves inside of Paddy's.

17
Reynolds vs. Reynolds: T... is listed (or ranked) 17 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
Reynolds Vs. Reynolds: The Cereal Defense Episode: 10, Season: It's Always Sunny in Philadelphia - Season 8

Original Airing: December 20, 2012

Season 8, Episode 10

Court is in session at Paddy's Pub as Frank and Dennis present their cases to the rest of the gang, resulting in a verdict that will change their lives FOREVER...but not really.

18
The Gang Gives Frank an ... is listed (or ranked) 18 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Gives Frank An Intervention Episode: 4, Season: It's Always Sunny in Philadelphia - Season 5

Original Airing: October 8, 2009

Season 5, Episode 4

When Frank's reckless lifestyle becomes an inconvenience for the gang, they call for an intervention.

19
The Gang Dines Out is listed (or ranked) 19 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Dines Out Episode: 9, Season: It's Always Sunny in Philadelphia - Season 8

Original Airing: December 13, 2012

Season 8, Episode 9

Every member of The Gang has something to celebrate at Guigino's, Philly's finest eatery.

20
The Gang Gets Analyzed ... is listed (or ranked) 20 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Gets Analyzed Episode: 5, Season: It's Always Sunny in Philadelphia - Season 8

Original Airing: November 8, 2012

Season 8, Episode 5

The Gang gets Freudian as they step into the therapist's office to work through their mountain of issues.

21
The Gang Hits the Road ... is listed (or ranked) 21 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
The Gang Hits The Road Episode: 2, Season: It's Always Sunny in Philadelphia - Season 5

Original Airing: September 24, 2009

Season 5, Episode 2

The gang attempts to expand their horizons by taking a road trip to the Grand Canyon.

22
Mac and Charlie Die: Par... is listed (or ranked) 22 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
Episode: 5, Season: It's Always Sunny in Philadelphia - Season 4

Original Airing: October 2, 2008

Season 4, Episode 5

After Mac's father is released from prison, Mac and Charlie stage their own deaths to save their lives. Frank, Dee, and Dennis find unique ways of dealing with the loss.

23
Who Got Dee Pregnant is listed (or ranked) 23 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
Who Got Dee Pregnant Episode: 7, Season: It's Always Sunny in Philadelphia - Season 6

Original Airing: October 28, 2010

Season 6, Episode 7

The gang gets a real 'scare' after Dee reveals she's pregnant, forcing the guys to recall their last hazy Halloween Party to determine if one of them might be the father.

24
Thunder Gun Express is listed (or ranked) 24 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'
Thunder Gun Express Episode: 11, Season: It's Always Sunny in Philadelphia - Season 7

Original Airing: December 1, 2011

Season 7, Episode 11

The gang will do whatever it takes to see the hottest action movie of the summer, "Thunder Gun Express," before it leaves the theaters.

25
Flowers for Charlie is listed (or ranked) 25 on the list The Best Episodes Of 'It's Always Sunny In Philadelphia'

Original Airing: October 23, 2013

Season 9, Episode 8

When an experiment successfully multiplies Charlie's intellect and takes him away from the bar, the rest of the gang find themselves struggling to complete the menial 'Charlie Work' that has kept the bar running for so long.