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Scarlet Spider & Speedster 3 : Flashpoint Paradox by What If Universe reviews
Barry Allen did it. He saved his mother and ruptured all of time and space. Now the ripple effect has taken place and ripples of distortion radiated from that point of impact, shifting everything just slightly, but enough to make a gigantic impact on the timeline. Friends have become enemies, enemies will never come to pass, and let's just say the universe will never be the same.
Crossover - Spider-Man & Flash - Rated: K+ - English - Family/Angst - Chapters: 10 - Words: 72,029 - Reviews: 25 - Favs: 33 - Follows: 32 - Updated: 18h - Published: 9/2/2023 - [Peter P./Spider-Man, Mary Jane W.] [Dr. Caitlin S., Barry A./The Flash]
Messenger by IAmMattis
Regardless of time period you're in, one thing can't be broken is the bond of sisterhood as Barry delivers a message to Sara from someone he encountered in flashpoint timeline.
Crossover - Flash & Arrow - Rated: T - English - Angst/Friendship - Chapters: 1 - Words: 880 - Published: 9/26 - Barry A./The Flash, Sara L.
The Misadventures of Sebastian Allen: Prologue by Alter Alyce
The Allens were a small family living in Central City. Twin sons of Henry and Nora Allen were highly clever and sweet boys. But life isn't without its challenges, especially for their younger son Sebastian. Mostly Sebastian POV An alternative take of "The Allen Twins". Inspired by Flashpoint POV.
Crossover - Flash & Glee - Rated: K+ - English - Friendship/Family - Chapters: 4 - Words: 8,293 - Favs: 2 - Follows: 1 - Updated: 9/24 - Published: 9/1 - Barry A./The Flash, Sebastian S.
Possibilities by LycoX reviews
A series of one shots and ideas centered in the Arrowverse. (Requests Open Again)
Crossover - Flash & Arrow - Rated: T - English - Humor/Adventure - Chapters: 309 - Words: 374,774 - Reviews: 762 - Favs: 196 - Follows: 154 - Updated: 9/23 - Published: 3/5/2015
What Needs to be Said by Alter Alyce
What if Barry moved to McKinley during his Senior Year and spent it with his cousin Marley Rose. What if he had reunited with his brother, Sebastian, who lived studied just an hour or two away at Dalton. What if Barry had been at McKinley when fires have been shot. Glee Centric Oneshot Inspired by Bad Blood Glee Flash by TeganLynn at AO3
Crossover - Flash & Glee - Rated: T - English - Family/Hurt/Comfort - Chapters: 1 - Words: 2,576 - Favs: 1 - Follows: 1 - Published: 9/22 - Barry A./The Flash, New Directions, Sebastian S. - Complete
Encore by 2cienceNerd
Most superheroes rarely tap into their full potential, but what if there was someone to help them along. Whether that is simple offering different ideas or diving into the source of their powers. Let’s see how far I can take this.
Crossover - Flash & DC Superheroes - Rated: M - English - Adventure - Chapters: 1 - Words: 3,623 - Favs: 1 - Follows: 2 - Published: 9/22
Worst doppelgangers ever! by Aragorn II Elessar reviews
The comics Barry Allen and Iris West come across their Arrowverse doppelgangers, and are very irritated by their behavior. Not for CW WestAllen fans. Crack fic.
Crossover - Flash & Flash - Rated: T - English - Humor/Sci-Fi - Chapters: 1 - Words: 861 - Reviews: 8 - Favs: 17 - Follows: 13 - Published: 9/22 - [Barry A./Flash II, Iris A.] [Barry A./The Flash, Iris W.] - Complete
Legends of Tomorrow: Golden Rogue by ElementalDrift reviews
This story is a version of Legends of Tomorrow, which includes: Lisa Snart. In cannon Lisa had left The Flash in season 2, but in this we will see what happens when she sticks with her brother and partner, and later joins the Legends.
Crossover - Flash & Legends of Tomorrow - Rated: T - English - Chapters: 7 - Words: 33,936 - Reviews: 2 - Favs: 3 - Follows: 4 - Updated: 9/12 - Published: 12/26/2022
The flash by Luis Gerardo Hernndez reviews
Historia cliché de Izuku Midoriya como the flash de DC cómics.
Crossover - My Hero Academia/僕のヒーローアカデミア & Flash - Rated: K - Spanish - Friendship/Adventure - Chapters: 9 - Words: 29,703 - Reviews: 3 - Favs: 3 - Follows: 3 - Updated: 9/8 - Published: 8/2 - Izuku M., Inko M., Cisco R., Harrison Wells
The Speedster and The Spider by Nightwing Josh reviews
Sequel/Spinoff of "Four Peters Vs. The Sinister Six." After his ordeal on Earth-199999, Peter-4 finds that things are not what they seem. Caitlin and Frost aren't married to him, but dating other men and Barry is married to Iris again. AU of Flash S8 & 9. Not for fans of WestAllen and Mark Blaine. Warning: Some strong language and sensitive topics brought up
Crossover - Spider-Man & Flash - Rated: T - English - Drama/Hurt/Comfort - Chapters: 9 - Words: 74,652 - Reviews: 19 - Favs: 10 - Follows: 13 - Updated: 9/8 - Published: 4/25 - [Peter P./Spider-Man, Killer Frost, Dr. Caitlin S.] Barry A./The Flash
Arrowverse meets DCEU by GhostAlleyCat
When the Dark Knights threaten the Multiverse, heroes of two Earths must unite to stop them and to save the world's greatest detective.
Crossover - Flash & Batman v Superman: Dawn of Justice - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 10,938 - Published: 9/2 - Barry A./The Flash, Bruce W./Batman - Complete
When Lightning Meets Snow by Crazytoaster24
Set in an Alternate version of season three where Barry and Caitlin get together. Team Flash And Arrow must team up yet again in order to stop a new and mysterious threat from destroying Central City. Barry Allen X Caitlin Snow
Crossover - Flash & Arrow - Rated: M - English - Romance/Mystery - Chapters: 11 - Words: 18,414 - Favs: 9 - Follows: 4 - Updated: 9/1 - Published: 1/30 - Barry A./The Flash, Dr. Caitlin S. - Complete
Beautiful by CharmedMilliE- Karry Master reviews
On a world where most of our favorite characters are actors they balance their jobs, fans, conventions, their real lives including kids, and superhero life.
Crossover - Flash & Supergirl - Rated: T - English - Family - Chapters: 33 - Words: 188,646 - Reviews: 165 - Favs: 58 - Follows: 49 - Updated: 9/1 - Published: 8/25/2019 - [Barry A./The Flash, Kara D./Supergirl] [Dr. Caitlin S., OC]
The luck of Lightning by emrys-nayerlive.co.uk reviews
Harry Potter didn't know the wild Journey ahead of him after getting struck by Lightning.
Crossover - Harry Potter & Flash - Rated: T - English - Sci-Fi/Fantasy - Chapters: 10 - Words: 20,699 - Reviews: 8 - Favs: 36 - Follows: 43 - Updated: 8/31 - Published: 8/23
The Crimson Speedster by choejhulkp9 reviews
Barry Allen AKA the Flash wasn't the only one who was affected by the particle accelerator. He and Star Labs find another speedster who has similar powers to Barry, yet he's a bit different. Watch as the Scarlet Speedster joins the Crimson Speedster possibly join forces and protect Central City. Naruto x Linda x ?
Crossover - Flash & Naruto - Rated: M - English - Chapters: 21 - Words: 673,199 - Reviews: 845 - Favs: 2,151 - Follows: 2,172 - Updated: 8/30 - Published: 12/18/2015 - Linda P., Naruto U.
Future Foundation 2 : Family Matters by What If Universe reviews
It's been 2 years since the singularity and things are going well for Peter and his team. Everyone is happy and content but little did Peter know that it was only the beginning of something much larger. Peter and his team will now have to defend the world and even the universe from threats even more powerful than before because if they fail everything they love will be destroyed.
Crossover - Flash & Fantastic Four - Rated: T - English - Sci-Fi/Suspense - Chapters: 7 - Words: 53,242 - Reviews: 32 - Favs: 22 - Follows: 26 - Updated: 8/28 - Published: 3/5 - [Spider-Man/Peter P., Invisible Woman/Susan S.] Jay G./The Flash, Dr. Doom/Victor V.
Ninja of Earth 1 and a half by DigitallyAdmiringHumanity reviews
This is one of the portals from Naruto's Tale that opens in the Arrowverse, one of the two
Crossover - Flash & Naruto - Rated: M - English - Family/Adventure - Chapters: 3 - Words: 7,886 - Reviews: 58 - Favs: 348 - Follows: 353 - Updated: 8/27 - Published: 5/13/2021 - [Sakura H., Naruto U.] [Barry A./The Flash, Killer Frost] - Complete
The Allen Twins by Alter Alyce reviews
Sebastian and Barry Allen are the twin sons of Henry and Nora Allen. After the incident, they were separated. Barry going the the Wests while Sebastian went to his godfather Alex Smythe. This is the story of what happened to the two young boys separated by a tragedy.
Crossover - Flash & Glee - Rated: T - English - Humor/Family - Chapters: 34 - Words: 84,672 - Reviews: 142 - Favs: 400 - Follows: 372 - Updated: 8/25 - Published: 6/18/2015 - Barry A./The Flash, Sebastian S. - Complete
Elem 4-Speedster's Trials by LORD NAVIGATOR reviews
Father and mother killed by a man in yellow with red lightning. At seven wonders around the village and gets caught by a storm, rushing home he finds a place where a window was open. About to enter, he is hit by a lightning bolt and falls into a chemical container, but quickly comes out by swimming back up. Develops powers and gets a team to stop crime in the world.
Crossover - Flash & Naruto - Rated: T - English - Family - Chapters: 7 - Words: 21,663 - Reviews: 8 - Favs: 43 - Follows: 45 - Updated: 8/20 - Published: 6/22/2018 - Eobard T./Impostor Harrison W./Reverse-Flash, Naruto U., Samui, C
The PJ masks meet The Flash by PJ Masks 2023 reviews
In a town called Tarabiscoville, a boy named Connor gets hit by particle excelerator and becomes none other than… Catboy. but his journey had just begun. due to the death of his sister Wendy, who was killed by none other than the reverse Cameron. Connor would have to leave his life and live in Central city. Where he will meet another speedster named The Flash. AKA Barry Allen.
Crossover - PJ Masks & Flash - Rated: K - English - Adventure - Chapters: 11 - Words: 11,865 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 8/17 - Published: 8/18/2022 - Barry A./The Flash
Total War: The Flash by Dark Days Dexter reviews
Part 1 of the Total War series. Barry Allen's life as the Flash has only been underway to his third year and has been more difficult with the effects of Flashpoint. However, Barry must put away his personal issues as a multiverse war finds its way to Earth 1, forcing him to jump into action with a sea of foes and allies both new and alike.
Crossover - Flash & Arrow - Rated: M - English - Sci-Fi/Angst - Chapters: 10 - Words: 43,884 - Reviews: 29 - Favs: 12 - Follows: 11 - Updated: 8/14 - Published: 3/30 - Barry A./The Flash, Cisco R., Oliver Q./The Arrow, John D./Spartan
Something Else by Zuiri
Mick x Caitlin, following the events of "It Had to Be You." Multiple chapters. In an attempt to save the Legends from a mysterious group out to destroy them, Caitlin joins the team and begins a chaotic adventure through time.
Crossover - Flash & Legends of Tomorrow - Rated: M - English - Adventure/Romance - Chapters: 6 - Words: 35,267 - Favs: 1 - Follows: 3 - Updated: 8/1 - Published: 1/9/2023
Heroes coming together by Aragorn II Elessar reviews
The Singularity at the end of Flash Season 1 has graver consequences than anyone foresaw. Now, it is up to Heroes from various worlds to come together and defeat the forces of evil that have risen in the Singularity's wake. LOTR/MCU/Star Wars/Buffyverse/Smallville/Supernatural/Arrowverse crossover. Part 1 of 'When Legends meet'.
Crossover - Flash & Avengers - Rated: M - English - Adventure/Friendship - Chapters: 40 - Words: 656,066 - Reviews: 533 - Favs: 93 - Follows: 74 - Updated: 7/26 - Published: 8/27/2023 - Barry A./The Flash, Cisco R., Captain America/Steve R., Thor - Complete
speedster's reckoning the flash vs the seven by theflashladbabyfanfictonwriter reviews
when the Flash ends up in the world of the boys' TV show after chasing the reverse Flash he must team up with a vigilante group called the boys to take down the corrupt heroes of this world he questions the boys' violent methods they rescue the gen v kids to help against the corrupt heroes spoilers for the boys season 4 if you haven't seen it YOU HAVE BEEN WARNED
Crossover - Flash & Boys - Rated: M - English - Sci-Fi/Suspense - Chapters: 1 - Words: 842 - Reviews: 5 - Favs: 6 - Follows: 6 - Published: 7/16 - Barry A./The Flash, Annie J./Starlight, Homelander/John, Hughie Campbell
SuperEarth: Reign by Captain Sigma- Karry Co-Master reviews
With Nxylgsptinz stuck on SuperEarth, she needs a Kryptonian to break her free: Reign. Meanwhile, Kara and Barry navigate their newfound parenthood alongside family and hero duties.
Crossover - Flash & Supergirl - Rated: K - English - Romance/Supernatural - Chapters: 8 - Words: 52,508 - Reviews: 18 - Favs: 7 - Follows: 6 - Updated: 7/13 - Published: 4/20 - Barry A./The Flash, Alex D., Samantha A./Reign, Kara D./Supergirl
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