The Flash Episode Ratings Heatmap
1990 · 1 Seasons · 22 Episodes · Overall Score: 7.2/10 (22 rated)
Season 1 holds the highest collective average score across the series.
Season 1 Details →Lowest score variance (σ = 0.71), maintaining an average of 7.2.
Complete Episode Rating Matrix
Interactive score chart by season and episode number. Darker green indicates higher ratings; amber and red denote lower reception.
Ratings Analysis & Trajectory
Across 1 seasons and 22 episodes, The Flash has earned an overall series rating of 7.2 out of 10. The series displays remarkable consistency across its narrative arc, maintaining reliable ratings from premiere to conclusion.
The single highest-rated hour of television in the series is Season 1, Episode 16 ("Deadly Nightshade"), rated at an extraordinary 8.5/10 with 2 ratings. Conversely, the lowest-rated installment is Season 1, Episode 5 ("Double Vision"), landing at 5.2/10.
The most precipitous single-episode shift occurred in Season 1 between Episode 16 ("Deadly Nightshade", 8.5) and Episode 17 ("Captain Cold", 5.8), a swing of 2.7 points.
Top 10 Highest Rated Episodes of The Flash
| Rank | Episode | Title | Score | Votes | Air Date |
|---|---|---|---|---|---|
| #1 | Season 1, Ep 16 | Deadly Nightshade | 8.5 | 2 | Mar 30, 1991 |
| #2 | Season 1, Ep 9 | Ghost in the Machine | 8.0 | 2 | Dec 13, 1990 |
| #3 | Season 1, Ep 10 | Sight Unseen | 8.0 | 2 | Jan 10, 1991 |
| #4 | Season 1, Ep 18 | Twin Streaks | 8.0 | 2 | Apr 13, 1991 |
| #5 | Season 1, Ep 12 | The Trickster | 7.7 | 3 | Feb 7, 1991 |
| #6 | Season 1, Ep 2 | Out of Control | 7.5 | 2 | Sep 27, 1990 |
| #7 | Season 1, Ep 19 | Done with Mirrors | 7.5 | 2 | Apr 27, 1991 |
| #8 | Season 1, Ep 1 | Pilot | 7.3 | 3 | Sep 20, 1990 |
| #9 | Season 1, Ep 22 | The Trial of the Trickster | 7.3 | 3 | May 18, 1991 |
| #10 | Season 1, Ep 3 | Watching the Detectives | 7.0 | 1 | Oct 18, 1990 |