It's Always Sunny in Philadelphia seasons
18 seasons · FX
Season 12 is the biggest. Season 18 started 8% lower than season 17, after a wait of 1 year.
The first 30 days
Attention Score on each day after a season came out
Day 1 is the premiere. Each mark on the bottom line is a day with a new episode of season 18.
It's Always Sunny in Philadelphia seasons
Through Nov 5, 2026Season Attention Score is a season's average Attention Score in its first 30 days. How it works
- Season 1Aug 2005 · 7 episodes
- 9 months after season 1Season 2Jun 2006 · 10 episodes
- 1 year, 1 month after season 2Season 3Sep 2007 · 15 episodes
- 10 months after season 3Season 4Sep 2008 · 13 episodes
- 10 months after season 4Season 5Sep 2009 · 12 episodes
- 9 months after season 5Season 6Sep 2010 · 13 episodes
- 9 months after season 6Season 7Sep 2011 · 13 episodes
- 10 months after season 7Season 8Oct 2012 · 10 episodes
- 8 months after season 8Season 9Sep 2013 · 10 episodes
- 1 year, 2 months after season 9Season 10Jan 2015 · 10 episodes
- 10 months after season 10Season 11Jan 2016 · 10 episodes12.7
- 10 months after season 11Season 12Jan 2017 · 10 episodes16.430%
- 1 year, 6 months after season 12Season 13Sep 2018 · 10 episodes8.548%
- 11 months after season 13Season 14Sep 2019 · 10 episodes6.721%
- 2 years after season 14Season 15Dec 2021 · 8 episodes10.253%
- 1 year, 5 months after season 15Season 16Jun 2023 · 8 episodes10.64%
- 2 years after season 16Season 17Jul 2025 · 8 episodes10.14%
- 1 year after season 17Season 18Aug 2026 · 10 episodes9.48%
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Time between seasons
Usually 10 months between seasons. The longest wait was 2 years, before season 15.
S1S3S5S7S9S11S13S15S16S17
2006201120162021