FX’s It’s Always Sunny in Philadelphia Season 18 Premieres August 17

The longest-running live-action sitcom in American television history is back. FX’s It’s Always Sunny in Philadelphia returns for Season 18 on Monday, August 17, bringing another round of outrageous schemes, hilarious disasters, and the wonderfully dysfunctional antics of The Gang.

The new season expands to 10 episodes, up from the eight-episode format used over the previous three seasons. Season 18 premieres at 9 p.m. ET / 6 p.m. PT on FXX, with episodes also available on FX, Hulu, and streaming internationally on Disney+.

It’s Always Sunny in Philadelphia Season 18 Synopsis

Charlie, Mac, Dennis, Dee, and Frank are as reckless and unpredictable as ever in Season 18.

The Gang tackles everything from unexpected inheritances and the rise of automation to conspiracy theories, shifting attitudes toward sobriety, and the never-ending chaos surrounding Paddy’s Pub. As always, their outrageous plans spiral spectacularly out of control, creating one disastrous situation after another.

Packed with over-the-top comedy, memorable guest stars, and plenty of Philadelphia references, the latest season proves that while The Gang may be getting older, they’ve learned absolutely nothing.

Main Cast

• Charlie Day as Charlie Kelly
• Rob McElhenney as Ronald “Mac” McDonald
• Glenn Howerton as Dennis Reynolds
• Kaitlin Olson as Dee Reynolds
• Danny DeVito as Frank Reynolds

What to Expect in Season 18

Season 18 continues the series’ trademark blend of dark comedy and outrageous satire, with episodes exploring:

• Unexpected inheritances
• Artificial intelligence and automation
• Modern conspiracy theories
• The changing culture around sobriety
• More disastrous business ventures at Paddy’s Pub
• Celebrity guest appearances
• Plenty of callbacks and Philadelphia-inspired humor
• Episode 1: Frank Marries a Corpse – The guys help Frank with his cold feet ahead of his wedding to Sam. Dee tries to scare Sam off the nuptials with testimonies from The Waitress, Artemis, and Snail. August 17, 2026
• Episode 2: Dennis and Dee Don’t Get Rich – The Reynolds twins push themselves to the limit to secure Sam’s transfer of wealth. Charlie and Frank plan a proper memorial for Bonnie during the annual Mummers Parade. August 17, 2026

With an expanded episode count, fans can expect even more absurd adventures from one of television’s most dysfunctional groups of friends.

Season 18 Premiere Date

Premiere Date: Monday, August 17

Where to Watch:

• FXX at 9 p.m. ET / 6 p.m. PT
• FX
• Hulu (U.S.)
• Disney+ (internationally)

One of Television’s Most Enduring Comedies

Since its debut in 2005, It’s Always Sunny in Philadelphia has become one of the most influential and acclaimed sitcoms of its generation. Known for its fearless humour, unforgettable characters, and willingness to satirize modern culture, the series continues to reinvent itself while staying true to the chaotic spirit that made it a fan favourite.

With a 10-episode season, fresh social commentary, and countless new disasters awaiting at Paddy’s Pub, It’s Always Sunny in Philadelphia Season 18 looks set to deliver another hilarious chapter for longtime fans when it premieres on August 17.