Season
- Season 0 2006-07-05
- Season 1 2004-12-01
- Season 2 2005-12-07
- Season 3 2006-07-12
- Season 4 2007-11-14
- Season 5 2008-07-16
- Season 6 2009-08-20
- Season 7 2010-01-14
- Season 8 2010-07-29
- Season 9 2011-07-28
- Season 10 2012-07-19
- Season 11 2013-01-24
- Season 12 2013-07-18
- Season 13 2014-07-24
- Season 14 2015-08-06
- Season 15 2016-09-15
- Season 16 2017-08-17
- Season 17 2019-03-14
- Season 18 2019-12-04
- Season 19 2021-10-14
- Season 20 2023-06-14
- Season 21 2025-07-31
Season 21 Episode
- Season 12 Sky's the Limit
- Season 12 Million Dollar Runway
- Season 12 An Unconventional Coney Island
- Season 12 Tie the Knot
- Season 12 YOU Choose Your Materials!
- Season 12 Let's Go Glamping!
- Season 12 Shoes First!
- Season 12 Having a Field Day
- Season 12 Let's Do Brunch
- Season 12 Project Runway SuperFan!
- Season 12 Next Generation...
- Season 12 Butterfly Effect
- Season 12 Finale, Part 1
- Season 12 Finale, Part 2
Project Runway - Season 12 Episode 12 Butterfly Effect
6.20 43 minutes The designers are tasked to create an avant-garde look inspired by butterflies. Later, they are given the additional task of re-purposing a losing look into something new. They have three days to complete both challenges.
