TV episodes The Best Episodes of The Flash  

Ranker TV
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There are so many good episodes of The Flash, but which ones really stand out? Do you like "Fast Enough" the best, or is "Flash vs. Arrow" your favorite episode of The Flash? To determine once and for all what the best episodes of The Flash are, let's rank every episode of The Flash from best to worst.

The Flash on CW is a superhero TV series based on the DC Comics character Barry Allen aka Flash. Starring Grant Gustin as the eponymous hero, The Flash was conceived as a spinoff of Arrow (Green Arrow). The series premiered on October 7, 2014 and has had crossover episodes with both Arrow and Supergirl. The series is critically acclaimed, with the second season having a perfect 100% score on Rotten Tomatoes.

Vote up your favorite episodes of The Flash, and downvote any bad episodes that you really didn't enjoy, despite how much you love the series as a whole. It can be painful to put one The Flash episode over the other when there are so many good ones, which is why you can vote on however many episodes you like.

1
82 20
Fast Enough is listed (or ranked) 1 on the list The Best Episodes of The Flash
Fast Enough Season 1 Episode 23: In the season one finale, Wells presents Barry with a life-altering choice, while Dr. Martin Stein and Ronnie Raymond (aka Firestorm) return to help the S.T.A.R. Labs team.

2
91 26
Out of Time is listed (or ranked) 2 on the list The Best Episodes of The Flash
Out of Time Season 1 Episode 15: Mark Mardon aka The Weather Wizard appears in Central City to avenge his brother's death at the hands of Joe. And Cisco realizes that Dr. Wells is hiding something.

3
76 19
The Man in the Yellow Suit is listed (or ranked) 3 on the list The Best Episodes of The Flash
The Man in the Yellow Suit Season 1 Episode 9: When Barry finds himself face to face with his nemesis, the Man in the Yellow Suit (aka Reverse Flash), who killed his mother, he turns to Dr. Tina McGee (AMANDA PAYS) for help.

4
67 17
The Trap is listed (or ranked) 4 on the list The Best Episodes of The Flash
The Trap Season 1 Episode 20: Barry, Caitlin, Cisco & Joe set a trap for Wells - using Cisco as bait. Meanwhile, Eddie makes a decision regarding Iris that leaves him unsettled.

5
66 18
Welcome to Earth-2 is listed (or ranked) 5 on the list The Best Episodes of The Flash
Welcome to Earth-2 Season 2 Episode 14: Barry, Wells & Cisco journey to Earth-2 to rescue Wells' daughter, Jesse, and Barry's stunned when he meets Killer Frost (DANIELLE PANABAKER) and Deathstorm (ROBBIE AMELL).

6
55 13
Pilot is listed (or ranked) 6 on the list The Best Episodes of The Flash
Pilot Season 1 Episode 1: In the series premiere, Central City forensic scientist Barry Allen (GRANT GUSTIN) is accidentally given the power of super speed in a freak particle accelerator accident.

7
61 18
Flash Back is listed (or ranked) 7 on the list The Best Episodes of The Flash
Flash Back Season 2 Episode 18: Determined to stop Zoom forever by increasing his speed, Barry travels back in time to consult his former mentor/nemesis Harrison Wells/Eobard Thawne.

8
53 13
Invasion! is listed (or ranked) 8 on the list The Best Episodes of The Flash
Invasion! Season 3 Episode 8: When aliens called the Dominators attack Central City, Barry asks for help from the Green Arrow, the Legends of Tomorrow and Supergirl in the first part of the epic crossover event.

9
59 17
Infantino Street is listed (or ranked) 9 on the list The Best Episodes of The Flash
Infantino Street Season 3 Episode 22: With only 24 hours left to save Iris from Savitar, Barry decides to use any means necessary and turns to Captain Cold (WENTWORTH MILLER) for help.

10
54 17
Flash vs. Arrow is listed (or ranked) 10 on the list The Best Episodes of The Flash
Flash vs. Arrow Season 1 Episode 8: In the first part of the epic crossover event with The Flash and Arrow, Barry is thrilled when Oliver, Felicity and Diggle join him in Central City to help stop a meta-human.

11
40 8
Rogue Air is listed (or ranked) 11 on the list The Best Episodes of The Flash
Rogue Air Season 1 Episode 22: As Wells once again gets the upper hand on the S.T.A.R. Labs team, Barry reaches out to an old foe, Captain Cold, and friends, the Arrow and Firestorm, for help.

12
53 17
The Runaway Dinosaur is listed (or ranked) 12 on the list The Best Episodes of The Flash
The Runaway Dinosaur Season 2 Episode 22: With Barry gone, the team must figure out a way to handle the return of an old enemy - Girder (GREG FINLEY), by trying to trap him in S.T. A. R. Labs.

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13
44 11
Escape from Earth-2 is listed (or ranked) 13 on the list The Best Episodes of The Flash
Escape from Earth-2 Season 2 Episode 15: In the conclusion to their Earth-2 journey, the team races to find Zoom's lair by asking for help from an unexpected source. Back on Earth-1, Caitlin rushes to perfect Velocity-9.

14
47 14
Crisis on Earth-X, Part 3 is listed (or ranked) 14 on the list The Best Episodes of The Flash
Crisis on Earth-X, Part 3 Season 4 Episode 8: When villains from Earth-X attack the wedding ceremony of Barry and Iris, the Green Arrow, Supergirl, The Flash and White Canary unite their teams to save the world.

15
48 15
Therefore I Am is listed (or ranked) 15 on the list The Best Episodes of The Flash
Therefore I Am Season 4 Episode 7: Barry comes face to face with DeVoe (NEIL SANDILANDS), whose past is revealed through flashbacks. Meanwhile, Iris puts the final touches on the wedding, which is a week away.

16
47 15
Enter Zoom is listed (or ranked) 16 on the list The Best Episodes of The Flash
Enter Zoom Season 2 Episode 6: Barry comes up with a dangerous plan to defeat Zoom. Although Caitlin sides with Jay and deems it too dangerous, Iris shows her support with a surprising ally.

17
45 14
The Once and Future Flash is listed (or ranked) 17 on the list The Best Episodes of The Flash
The Once and Future Flash Season 3 Episode 19: Barry travels to the future to find out Savitar’s identity in hopes of finding Iris, but in 2024, he encounters future versions of Team Flash who are very different people.

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18
49 17
Tricksters is listed (or ranked) 18 on the list The Best Episodes of The Flash
Tricksters Season 1 Episode 17: MARK HAMILL (Star Wars) reprises his role as James Jesse aka The Trickster, when a copycat killer (DEVON GRAYE) starts setting bombs off in Central City.

19
39 11
Who is Harrison Wells? is listed (or ranked) 19 on the list The Best Episodes of The Flash
Who is Harrison Wells? Season 1 Episode 19: While Joe and Cisco head to Starling City for answers about Dr. Wells from Capt. Lance, Barry races to catch a meta-human who can transform into anyone he touches.

20
36 9
The Race of His Life is listed (or ranked) 20 on the list The Best Episodes of The Flash
The Race of His Life Season 2 Episode 24: In the Season Two finale, Zoom reveals his true plan and Barry vows to do whatever it takes to stop him.

21
42 15
I Know Who You Are is listed (or ranked) 21 on the list The Best Episodes of The Flash
I Know Who You Are Season 3 Episode 20: Barry and the team meet Tracy Brand (ANNE DUDEK), a scientist, who may be the key to stopping Savitar. Unfortunately, Killer Frost is also after Tracy.

22
31 7
Running to Stand Still is listed (or ranked) 22 on the list The Best Episodes of The Flash
Running to Stand Still Season 2 Episode 10: Villains James Jesse (MARK HAMILL), Capt. Cold and the Weather Wizard (LIAM McINTYRE) run amok in Central City during Chistmas. KEIYNAN LONSDALE joins the cast as Wally West.

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23
41 15
The Flash Reborn is listed (or ranked) 23 on the list The Best Episodes of The Flash
The Flash Reborn Season 4 Episode 1: In the season four premiere, Cisco (CARLOS VALDES) makes a risky decision to break Barry (GRANT GUSTIN) out of the Speed Force.

24
33 9
The Present is listed (or ranked) 24 on the list The Best Episodes of The Flash
The Present Season 3 Episode 9: Unable to focus on the Christmas holiday – and especially his relationship with Iris – Barry travels to Earth-3 to get advice from Jay Garrick in how to stop Savitar.

25
33 10
Abra Kadabra is listed (or ranked) 25 on the list The Best Episodes of The Flash
Abra Kadabra Season 3 Episode 18: The Flash battles Earth-19 villain Abra Kadabra (guest star DAVID DASTMALCHIAN) who offers up Savitar’s true identity in exchange for his release.

26
34 11
Fallout is listed (or ranked) 26 on the list The Best Episodes of The Flash
Fallout Season 1 Episode 14: After the explosion separates Ronnie (ROBBIE AMELL) & Dr. Stein (VICTOR GARBER), the STAR Labs team believes both men are safe - until General Eiling targets Firestorm.

27
40 16
Elongated Journey Into Night is listed (or ranked) 27 on the list The Best Episodes of The Flash
Elongated Journey Into Night Season 4 Episode 4: Cisco is shocked when Gypsy (JESSICA CAMACHO) and her father, Breacher (DANNY TREJO) show up on Earth-1. And Breacher really dislikes him!

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28
34 12
The Reverse-Flash Returns is listed (or ranked) 28 on the list The Best Episodes of The Flash
The Reverse-Flash Returns Season 2 Episode 12: When Cisco gets a vibe of Eobard Thawne, Barry and the team don't believe it. But, after an attack at Mercury Labs, Christina McGee confirms that the Reverse-Flash is back.

29
26 6
Don't Run is listed (or ranked) 29 on the list The Best Episodes of The Flash
rickbradshaw added Don't Run 12/05/17

Season 4 Episode 9: Amunet kidnaps Caitlin and puts meta-dampener handcuffs on her to keep her from turning into Killer Frost. Amunet tells Caitlin she needs her to perform a tricky medical task and if Caitlin fails, Amunet will kill her. Meanwhile, The Thinker traps The Flash in a speedster-proof prison. With the clock ticking, The Team doesn’t have the time or resources to track both Caitlin and Barry so Iris is forced to choose who to save.

30
36 14
Cause and Effect is listed (or ranked) 30 on the list The Best Episodes of The Flash
Cause and Effect Season 3 Episode 21: Barry takes drastic measures to stop Savitar. Meanwhile, H.R. continues to push Tracy Brand to design the trap for Savitar; and Killer Frost returns with an interesting proposal.

31
33 13
Into the Speed Force is listed (or ranked) 31 on the list The Best Episodes of The Flash
Into the Speed Force Season 3 Episode 16: Desperate to stop Savitar and save his friends, Barry turns to the speed force for answers. Meanwhile, H.R. gives Jesse some advice.

32
36 16
Killer Frost is listed (or ranked) 32 on the list The Best Episodes of The Flash
Killer Frost Season 3 Episode 7: In order to save Barry, Caitlin uses her powers, but the effort unleashes her inner Killer Frost, who ends up battling both The Flash and Vibe. Kevin Smith directs.

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33
32 13
The Wrath of Savitar is listed (or ranked) 33 on the list The Best Episodes of The Flash
The Wrath of Savitar Season 3 Episode 15: While training with Barry, Wally starts to have visions of Savitar, which he hides from the team. Meanwhile, a dangerous secret threatens the happiness of Barry and Iris.

34
29 11
Finish Line is listed (or ranked) 34 on the list The Best Episodes of The Flash
Finish Line Season 3 Episode 23: With nothing left to lose, Barry takes on Savitar in an epic conclusion to season three.

35
26 9
Fastest Man Alive is listed (or ranked) 35 on the list The Best Episodes of The Flash
Fastest Man Alive Season 1 Episode 2: Much to Joe's disapproval, Barry has fun with his new powers, but a setback makes him question his ability to be a hero. Iris (CANDICE PATTON) is intrigued by the "red streak."

36
28 11
Attack on Gorilla City is listed (or ranked) 36 on the list The Best Episodes of The Flash
Attack on Gorilla City Season 3 Episode 13: When Jesse Quick informs the team that her father has been abducted, Barry, Caitlin, Cisco and Julian voyage to Earth-2 on a rescue mission to save Harry from Gorilla City.

37
29 12
Revenge of the Rogues is listed (or ranked) 37 on the list The Best Episodes of The Flash
Revenge of the Rogues Season 1 Episode 10: When Captain Cold (WENTWORTH MILLER) returns to Central City with a hotheaded partner - Mick Rory aka Heat Wave (DOMINIC PURCELL) - they challenge The Flash to an epic battle.

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38
29 12
Family of Rogues is listed (or ranked) 38 on the list The Best Episodes of The Flash
Family of Rogues Season 2 Episode 3: When Barry and the team find out Captain Cold (WENTWORTH MILLER) has been kidnapped, they form an uneasy alliance with his sister, Lisa (PEYTON LIST).

39
29 12
Versus Zoom is listed (or ranked) 39 on the list The Best Episodes of The Flash
Versus Zoom Season 2 Episode 19: Equipped with the tachyon device, Barry believes he is fast enough to stop Zoom (TEDDY SEARS) and convinces Wells and Cisco to open the breaches to catch him.

40
31 14
Invincible is listed (or ranked) 40 on the list The Best Episodes of The Flash
Invincible Season 2 Episode 23: After Zoom unleashes an army of meta-humans on Central City, Barry is shaken when he sees their leader is the Black Canary's Earth-2 doppelganger, the Black Siren (KATIE CASSIDY).

41
26 10
Rogue Time is listed (or ranked) 41 on the list The Best Episodes of The Flash
Rogue Time Season 1 Episode 16: Captain Cold and Heat Wave return to Central City. But this time, Snart brings along his sister, Lisa (guest star PEYTON LIST) to wreak havoc on the city.

42
20 6
Finale: We Are the Flash is listed (or ranked) 42 on the list The Best Episodes of The Flash
Connor Behel added Finale: We Are the Flash

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43
28 13
Going Rogue is listed (or ranked) 43 on the list The Best Episodes of The Flash
Going Rogue Season 1 Episode 4: After stopping a robbery, Barry identifies the criminal. When the villain gets his hands on a stolen cold gun that could kill the Flash, Barry faces Capt. Cold in an epic fight.

44
22 8
Flash of Two Worlds is listed (or ranked) 44 on the list The Best Episodes of The Flash
Flash of Two Worlds Season 2 Episode 2: Jay Garrick (TEDDY SEARS), a mysterious man from Earth-2, appears at S.T.A.R. Labs with a dire warning about an evil speedster named Zoom, who is set on destroying The Flash.

45
27 13
The Flash is Born is listed (or ranked) 45 on the list The Best Episodes of The Flash
The Flash is Born Season 1 Episode 6: The Flash faces a new meta-human named Tony (GREG FINLEY), who can turn himself into girded steel at will. Meanwhile, Joe asks Dr. Wells to help him solve Nora Allen's murder.

46
24 11
Legends of Yesterday is listed (or ranked) 46 on the list The Best Episodes of The Flash
Legends of Yesterday Season 2 Episode 9: In Part Two of the epic Flash crossover event, Oliver and Barry hide Kendra Saunders and Carter Hall in a remote location while they figure out how to defeat Vandal Savage.

47
27 14
Flashpoint is listed (or ranked) 47 on the list The Best Episodes of The Flash
Flashpoint Season 3 Episode 1: In the season premiere, Barry Allen (GRANT GUSTIN) is living the life he always wanted. But there are serious repercussions to living in this alternate Flashpoint universe.

48
23 11
Rupture is listed (or ranked) 48 on the list The Best Episodes of The Flash
Rupture Season 2 Episode 21: When Zoom arrives back on Earth-1 with the villain Rupture (NICHOLAS GONZALEZ), Barry and Wells come up with a very dangerous plan to stop them forever.

49
24 12
The Nuclear Man is listed (or ranked) 49 on the list The Best Episodes of The Flash
The Nuclear Man Season 1 Episode 13: After Ronnie attacks a physicist, Barry and the team realize he's now a dangerous meta-human and decide to track him down by finding Dr. Martin Stein (guest star VICTOR GARBER).

50
18 7
Things You Can't Outrun is listed (or ranked) 50 on the list The Best Episodes of The Flash
Things You Can't Outrun Season 1 Episode 3: As Barry and the team work to capture a dangerous new meta-human with toxic gas powers, they revisit the night the particle accelerator exploded and killed Caitlin's fiancé, Ronnie.