| Legends of Tomorrow | |
|---|---|
| Season 3 | |
 Home media cover | |
| Showrunners |
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| Starring | |
| No. of episodes | 18 |
| Release | |
| Original network | The CW |
| Original release | October 10, 2017 – April 9, 2018 |
| Season chronology | |
The third season of the American television series Legends of Tomorrow, which is based on characters from DC Comics, premiered on The CW on October 10, 2017, and ran for 18 episodes until April 9, 2018. The season follows the Legends, a dysfunctional team of time-traveling superheroes and anti-heroes, and their mission to correct anachronisms in time that they unintentionally caused. It is set in the Arrowverse, sharing continuity with the other television series of the universe, and is a spin-off of Arrow and The Flash. The season was produced by Berlanti Productions, Warner Bros. Television, and DC Entertainment, with Phil Klemmer and Chris Fedak serving as showrunners.
The season was ordered in January 2017. Production began that July and ended in February 2018. Principal cast members Caity Lotz, Brandon Routh,Victor Garber, Franz Drameh, Maisie Richardson-Sellers, Amy Pemberton, Nick Zano, and Dominic Purcell return from previous seasons. They are joined by new cast members Tala Ashe and The Flash alum Keiynan Lonsdale. Drameh, Garber and Lonsdale all depart the series thought the season. Multiple of the seasons recurring characters were promoted to regulars in the following season including, Matt Ryan, Jes Macallan, and Courtney Ford.
The series was met with positive reviews from critics who praised the season for its goofiness and cast. Several of them felt that it greatly improved on the previous two seasons. It was nominated for a Saturn Award for Best Superhero Television Series. The season averaged 2.37 million viewers per episode.