Flash Crossovers
Filters
78 | Page 1 2 3 .. Last Next »

Failed Fanfics and Future Ideas by StereoFreak
These are fanfiction ideas I have wanted to start on but couldn't. I compiled them and put them here. If you want to see one of these fanfiction ideas become fully fledged fanfics, then just leave a comment. Some stories are not finished.
Crossover - Flash & Flash - Rated: T - English - Chapters: 7 - Words: 3,318 - Published: 7/19
Lightning in the Sky by Hatake Kai
In the year 2037, the world is under the control of the Justice Lords. A small resistance opposes their rule and send the daughter of the late Wally West to stop the Justice Lords from forming. This is a companion story to Birds of A Feather, though set years before that story takes place.
Crossover - Justice League & Flash - Rated: T - English - Family/Sci-Fi - Chapters: 2 - Words: 5,117 - Favs: 1 - Published: 7/9 - Iris W./Impluse II, Jai W., Jay G./Flash I, Barry A./Flash
Randy Cunningham: The Fastest Man Alive! by Shadow knight39
My name is Randy Cunningham, and I'm the fastest man alive. When I was a child I saw my mother killed by something impossible, my father went to prison for her murder, then an accident made me the impossible. To the outside world I'm an ordinary student at Norrisville High. but secretly I use my speed to fight crime and find others like me. I am THE FLASH!
Crossover - Flash & Randy Cunningham: 9th Grade Ninja - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 7,832 - Favs: 2 - Follows: 2 - Updated: 6/28 - Published: 4/29 - Eobard T./Reverse Flash/Professor Zoom, Randy C., Howard W., Theresa
Spidey & Speedy: Central City Rush by Ricky Pine reviews
Peter Parker and Gwen Stacy come to Central City when a black hole threatens to devour not only the city, but the whole world as well. Of course, the day will be saved by not only The Flash, but Spider-Man as well - and soon, more heroes join forces with them. (AU crossover with Nightwing, iZombie, and Arrow. Ships: PeterxGwen, Dick GraysonxOC.)
Crossover - Flash & Spider-Man - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 9,280 - Reviews: 1 - Favs: 7 - Follows: 7 - Updated: 6/24 - Published: 4/6 - [Peter P./Spider-Man, Gwen S.] Barry A./Flash II
Fine By Me If You Never Leave by ValerieHarry reviews
Supergirl/Kara is tired of being afraid of love. So when she fallls for the flash, Supergirl will do everythingin her alien powers to make him stay. Will they fall in love in the end? What happens when he finds out? Will Barry ever leave?
Crossover - Flash & Supergirl - Rated: T - English - Romance/Drama - Chapters: 2 - Words: 2,076 - Reviews: 3 - Follows: 3 - Updated: 6/18 - Published: 4/18
Flash Forward by Nerdyicesk8er reviews
Yeah... Couldn't think of a title for this. Anyways, The Flash has woken up in an unfamiliar place with weird people. Like really weird people. He finds himself in a world with a group called 'The Avengers' and his new "bud", Spider-Man. -I still suck at summaries. But go ahead and try it. You may like it if you are a fan of Spider-Man and/or The Flash. There MAY be pairings.
Crossover - Flash & Spider-Man - Rated: T - English - Adventure/Humor - Chapters: 5 - Words: 4,480 - Reviews: 6 - Favs: 24 - Follows: 31 - Updated: 6/15 - Published: 3/24
The Flash by jillianjacob
Scientist Barry Allen has always been searching for some kind of purpose in his life, whether it be in his job or in his relationships. But after being struck by lightning, he manages to find a purpose along with a new life that brings hope back to the citizens of Central City. {disclaimer: not about the TV show Flash}
Crossover - Flash & DC Superheroes - Rated: T - English - Sci-Fi/Drama - Chapters: 4 - Words: 13,107 - Updated: 6/10 - Published: 6/7 - Barry A./Flash II, Eobard T./Reverse Flash/Professor Zoom, Iris A., Wally W./Kid Flash I/Flash III
Flash- Saviour of the Universe by Rossaldinho7 reviews
Agent Coulson is at his wits end. He's lost agent Daisy Johnson. He's fighting against the man he killed. He could most definitely use a hand. Set just before Failed Experiments in the Shield timeline, and just before Flash season 1 Episode 5 (Plastique) in the Flash.
Crossover - Flash & Agents of S.H.I.E.L.D. - Rated: K - English - Chapters: 1 - Words: 2,346 - Reviews: 1 - Favs: 2 - Follows: 4 - Published: 5/26
Something About Denial by water wish reviews
Friends becoming something more. Iris West x Damian Wayne
Crossover - Batman & Flash - Rated: T - English - Humor/Romance - Chapters: 7 - Words: 5,231 - Reviews: 12 - Favs: 8 - Follows: 9 - Updated: 4/23 - Published: 12/31/2014
Welcome Back, Wally by Mr. BramStoker
Wally's life in the fast lane suddenly comes to an unexpected screeching halt when his parents kick him out of their house, his brother Barry sells his apartment, and he loses his job. now he's forced to build himself back up by living with the wacky mischeivous Justice League. Hilarity ensues as Wally's life as well as pride and dignity are turned upside down
Crossover - Flash & Justice League - Rated: T - English - Humor - Chapters: 4 - Words: 3,497 - Favs: 4 - Follows: 3 - Updated: 4/4 - Published: 4/2 - Complete
LALA X THE FLASH by Barryallenswagin reviews
One day the flash saves a girl with pink hair from a fire and she will do anything to find out who he really is but she might fall in love in the process.
Crossover - Flash & To Love-Ru - Rated: K+ - English - Adventure/Romance - Chapters: 1 - Words: 745 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 2/14
Time Travel is Pink by Thunder Stag reviews
A crack-fic, in which Time Travel is pink, and the Doctor is confused.
Crossover - Doctor Who & Flash - Rated: K+ - English - Humor - Chapters: 1 - Words: 1,499 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 11/3/2015 - 10th Doctor, Barry A./Flash II - Complete
Sonic vs Flash by QueenTasha7
Flash goes threw a portal and finds himself in the world of Sonic X! He challenges Sonic, then goes back home.
Crossover - Flash & Sonic X - Rated: K - English - Humor - Chapters: 1 - Words: 393 - Published: 10/19/2015 - Complete
Annoyance by Flashfan2002
Just a Drabble about kid flash teaming up with captain marvel Wally is 18 in this and Billy is 13 and Cap is called Captain Thunder
Crossover - Flash & Captain Marvel/Shazam - Rated: K - English - Friendship/Humor - Chapters: 1 - Words: 142 - Favs: 1 - Published: 10/6/2015
The Life of a Flash Mistake by geekpower.ftw reviews
What if the Flash/Barry Allen had an unknown daughter who grew up to be a thief and went to school with Bruce Wayne's son. Multi-chapter story. Reviews accepted. I do not own any of these characters or cities.
Crossover - Batman & Flash - Rated: T - English - Adventure/Romance - Chapters: 10 - Words: 8,479 - Reviews: 2 - Favs: 4 - Follows: 4 - Updated: 9/7/2015 - Published: 8/7/2015 - Bruce W./Batman, Selina K./Catwoman, Barry A./Flash II
Poke-Flash: Rise of The Scarlet Speedster by The Man Known as nWore reviews
When Ash was a child, he saw his mother killed by something impossible and his father went to prison for it. Now Ash has become the impossible. To everyone else, he's just a forensic scientist, but secretly, he's The Flash! Combination of Pokemon and CW's The Flash TV Series. Rated T for Language. OthelloShipping, but also includes Amour, Pearl, OldRival and ChessShipping.
Crossover - Pokémon & Flash - Rated: T - English - Drama/Adventure - Chapters: 8 - Words: 27,451 - Reviews: 29 - Favs: 25 - Follows: 26 - Updated: 8/20/2015 - Published: 5/14/2015 - [Ash K./Satoshi, Hilda/Touko] Hilbert/Touya, Leaf
Casualty of Love by Skalidra
Finally, after years spent outright and then half-hiding his relationship with the already married Barry, Hal decides to take things one step further. He and Iris hammer out a plan, get everything set up, and lead Barry to the right place. Then only one question remains: what will Barry's answer be? - Earth-3 connected universe, Hal Jordan/Barry Allen/Iris West.
Crossover - Flash & Green Lantern - Rated: T - English - Romance/Drama - Chapters: 1 - Words: 6,397 - Favs: 7 - Follows: 3 - Published: 6/29/2015 - [Barry A./Flash II, Hal J./Green Lantern II/Parallax, Iris A.] - Complete
La ironía del pasado y el futuro by 12332432543
"No estás sola" las palabras que ella escucho en aquel fatídico día que la marco para el resto de su vida, y que fueron el bálsamo para saber que ellos siempre pensaron en ella.
Crossover - Batman & Flash - Rated: T - Spanish - Drama - Chapters: 2 - Words: 1,510 - Updated: 6/27/2015 - Published: 6/26/2015 - Richard G./Nightwing, Iris W./Impluse II
Running to the Past by IronFlameDragonSlayer
All she could do was run.
Crossover - Flash & Fullmetal Alchemist - Rated: K+ - English - Hurt/Comfort/Family - Chapters: 1 - Words: 1,239 - Published: 6/13/2015
Lightspeed by QueenPersephoneofHades reviews
4: He actually made it on time for once. Collection of 100 word drabbles for an under-appreciated pairing. Wally X Linda. Prompts from Tumblr
Crossover - Flash & Young Justice - Rated: T - English - Romance/Humor - Chapters: 5 - Words: 497 - Reviews: 1 - Follows: 3 - Updated: 5/26/2015 - Published: 1/18/2015 - [Linda P., Wally W./Kid Flash] Iris W./Impluse II, Jai W.
Different Kinds of Aggression by Skalidra reviews
In a barely-friendly spar between Hal and Barry there's a moment where everything changes between them. Well, at the least they see each other in a new light, even if both are still convinced the other is arrogant, aggravating, and only slightly less worthy of hate than the rest of the Crime Syndicate. - Earth-3 connected universe, Hal Jordan/Barry Allen. Prompt fill.
Crossover - Flash & Green Lantern - Rated: T - English - Romance - Chapters: 1 - Words: 2,210 - Reviews: 1 - Favs: 5 - Follows: 4 - Published: 5/15/2015 - [Barry A./Flash II, Hal J./Green Lantern II/Parallax] - Complete
The Breaking Point by Skalidra
There are weeks that are just hell, and Hal gets them more often than most. He's got an entire sector of the universe to run for the Green Lantern Corp, and that includes protecting the ones already under their control to keep them running smoothly. Sometimes everything just goes wrong. - Earth-3 connected universe, Hal Jordan/Barry Allen. Prompt Fill.
Crossover - Flash & Green Lantern - Rated: T - English - Hurt/Comfort/Romance - Chapters: 1 - Words: 6,469 - Favs: 4 - Follows: 3 - Published: 5/4/2015 - [Barry A./Flash II, Hal J./Green Lantern II/Parallax] - Complete
Ice Prince by Gemenice
Four times that Barry accidentally outs Bruce in front of Robins. ... or maybe not that accidentally.
Crossover - Batman & Flash - Rated: T - English - Humor/Romance - Chapters: 1 - Words: 1,750 - Favs: 9 - Follows: 2 - Published: 4/9/2015 - Bruce W./Batman, Richard G./Nightwing, Timothy D./Red Robin, Barry A./Flash II - Complete
Pulse by The True Templar
The chronicles of seventeen year old Ben Allen, the Flash from the destroyed universe 53, his quest for revenge against Professor Zoom, and his joining of the Team.
Crossover - Flash & Young Justice - Rated: T - English - Adventure - Chapters: 1 - Words: 550 - Published: 2/25/2015
Life In The Fast Lane by SSTR87 reviews
Continuing my one shot stories to form a justice league with several of the Naruto cast. This it's Naruto's story and his super ability.
Crossover - Flash & Naruto - Rated: T - English - Chapters: 1 - Words: 1,368 - Reviews: 2 - Favs: 11 - Follows: 7 - Published: 2/4/2015 - Complete
78 | Page 1 2 3 .. Last Next »