Flash and Supergirl Crossovers
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The Life He Made by moonswirl
Prelude #10 to ONCE MORE UNTO THE BREACH, coming in July. (See author's note inside) An AU story set across the Arrowverse. In this installment: The man known as Harrison Wells made his place in the world, though it came with a price.
Rated: K+ - English - Sci-Fi - Chapters: 1 - Words: 3,307 - Follows: 1 - Published: 4/20/2018
The new kid on the block a flash and supergirl fanfic by foxsword1 reviews
Barry had just defeated Zoom, Kara had just lost Mon-El. A new speedster comes arrives to stop Barry from making a big mistake. Kara has made a decision to hang up her cape, When Barry and the new speedster goes to visit her she goes back to their universe permanently and Winn chooses to follow them. New relationships will build.
Rated: M - English - Romance/Adventure - Chapters: 3 - Words: 8,159 - Reviews: 2 - Favs: 17 - Follows: 23 - Updated: 4/15/2018 - Published: 3/30/2018 - Barry A./The Flash, Dr. Caitlin S., Kara D./Supergirl, Winn S.
Part of Me by turambar499 reviews
"You know, backup'll be arriving soon if you want to save some for the rest of the League…" Felicity began. "Nah, I think I've got it," Kara replied conversationally into her communicator, glancing idly at her chest as a grenade bounced off it.
Rated: K+ - English - Adventure/Drama - Chapters: 4 - Words: 28,590 - Reviews: 13 - Favs: 31 - Follows: 29 - Updated: 4/10/2018 - Published: 2/5/2018 - Barry A./The Flash, Dr. Caitlin S., Kara D./Supergirl, Alex D. - Complete
Blackhole by Danielwe16 reviews
El dolor...el sufrimiento...si, yo se de eso...pero en fin, ya estoy harto, moldeare mi historia a mi gusto, después de todo ¿De que sirve ser un dios?... [Karry/Superflash]
Rated: M - Spanish - Mystery/Drama - Chapters: 3 - Words: 2,635 - Reviews: 1 - Favs: 6 - Follows: 7 - Updated: 4/8/2018 - Published: 7/21/2017 - [Barry A./The Flash, Kara D./Supergirl] OC, Jesse Q.
The Great Allen Empire by moonswirl reviews
Prelude #6 to ONCE MORE UNTO THE BREACH, coming in July. (See author's note inside) An AU story set across the Arrowverse. In this installment: Nora Allen's rise to power did not come without its share of sacrifices.
Rated: K+ - English - Sci-Fi - Chapters: 1 - Words: 3,282 - Reviews: 1 - Follows: 1 - Published: 3/30/2018 - Barry A./The Flash, Nora A. - Complete
Broken Computers and Torn Flesh by Artemis08Luna reviews
Joe thinks Kara has a crush on Barry but doesn't know what to do about it so she keeps breaking her computer just to talk to Barry. Iris thinks Oliver has a crush on Barry but doesn't know what to do about it so he keeps getting injured on the job just to talk to Barry. So... who's right?
Rated: K+ - English - Romance/Hurt/Comfort - Chapters: 1 - Words: 3,780 - Reviews: 7 - Favs: 53 - Follows: 26 - Published: 3/29/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl] - Complete
So We Can Stay Alive by slincoln reviews
While Kara Danvers is in Gotham looking to distract herself from the aftermath of the Daxamite Invasion Barry Allen shows up with a problem that needs her help to solve. Punching bad guys is an acceptable way of dealing with grief, right?
Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 30,525 - Reviews: 12 - Favs: 29 - Follows: 39 - Updated: 3/27/2018 - Published: 10/8/2017 - Barry A./The Flash, Cisco R., Kara D./Supergirl - Complete
El Kingdom vs Heroes by Vengador Dragon
El Kingdom, una organiación guiada por Artrick Johnson que a escapado de A.R.G.U.S. por 2 años, sin ninguna información sobre ellos; tras un atraco todos los héroes se ponen a seguirlo, pero las cosas se les complican cuando saca a varios de ellos del camino, depende del resto detenerlo, pero cada combate contra ellos los pondrá a prueba, ¿Serán capaces de vencerlos?
Rated: T - Spanish - Sci-Fi/Tragedy - Chapters: 7 - Words: 9,417 - Updated: 3/26/2018 - Published: 11/30/2017 - Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl, OC
How to Get Barry and Kara Together by supercorpforever88 reviews
Alex and Lena form a plan to get Supergirl and the Flash together.
Rated: M - English - Romance - Chapters: 1 - Words: 2,357 - Reviews: 8 - Favs: 65 - Follows: 38 - Published: 3/23/2018 - Barry A./The Flash, Kara D./Supergirl - Complete
The Curious Case of Barry Allen by geeorgiaaaaaaa reviews
Barry is at his trial, for *murdering* Clifford DeVoe, when someone comes flying in, injured and nearly dead. What will Barry do? Collab with @vrisita The Flash, Supergirl, and Glee crossover
Rated: K - English - Chapters: 8 - Words: 18,308 - Reviews: 10 - Favs: 35 - Follows: 41 - Updated: 3/22/2018 - Published: 12/20/2017 - Kara D./Supergirl, Barry A./The Flash, Capt. David S., Dr. Caitlin S.
Super-Flash by Dewy908 reviews
Set after 'Heroes in College'. Barry and Kara start their family as well as their careers. It will be the most difficult thing either of the heroes has have to face, but at least they will do it together.
Rated: T - English - Romance/Family - Chapters: 18 - Words: 21,937 - Reviews: 72 - Favs: 62 - Follows: 64 - Updated: 3/21/2018 - Published: 11/15/2017 - [Barry A./The Flash, Kara D./Supergirl] OC
Kingdom Come by xXxAngelStormxXx reviews
Basically this is one giant Royalty AU. (ALSO CROSSES OVER WITH ARROW, BUT THIS SITE ONLY ALLOWS SELECTING TWO SHOWS.) [Please remember to leave a review to let me know what you think!]
Rated: K+ - English - Friendship/Drama - Chapters: 14 - Words: 9,081 - Reviews: 6 - Favs: 15 - Follows: 20 - Updated: 3/14/2018 - Published: 3/3/2017 - Barry A./The Flash, Dr. Caitlin S., Cisco R., Kara D./Supergirl
Karry time by Shipmaster7777
384
Rated: M - English - Romance/Humor - Chapters: 1 - Words: 1,234 - Favs: 4 - Follows: 4 - Published: 3/12/2018
Worlds' Finest Expanded by Guardian of Nesh reviews
Barry finds himself trapped on Earth-38 at the end of Worlds' Finest. Now he has to adjust to the possibility that he will never see his Earth again. Of course he's still the Flash and he'll help Kara and National City however he can as he builds a new life with new love. Meanwhile on Earth-1 Barry's friends and family try to get him back. Also features Arrow and Legends.
Rated: T - English - Adventure/Romance - Chapters: 2 - Words: 6,322 - Reviews: 23 - Favs: 93 - Follows: 131 - Updated: 3/11/2018 - Published: 6/28/2017 - [Barry A./The Flash, Kara D./Supergirl]
Meet the Seeker by moonswirl reviews
Prelude #1 to ONCE MORE UNTO THE BREACH, coming in July. (See author's note inside) An AU story set across the Arrowverse. In this installment: Discover the origins of the one known as Seeker... once upon a time known as Lena Luthor.
Rated: K+ - English - Sci-Fi - Chapters: 1 - Words: 3,376 - Reviews: 2 - Favs: 2 - Follows: 4 - Published: 3/10/2018 - Lena L. - Complete
Jesse Frost Snow by DisneyBrony96 reviews
A lesbian love story between a speedster and a frosty scientist
Rated: K+ - English - Romance/Drama - Chapters: 1 - Words: 388 - Reviews: 2 - Favs: 6 - Follows: 2 - Published: 3/10/2018 - Iris W., Dr. Caitlin S., Jesse Q., Kara D./Supergirl - Complete
Lightning Strikes by Hrabdos reviews
Barry and Cisco are college roommates who secretly operate Team Flash. The two go to a party and Barry meets an interesting young woman named Kara. Please let me know what you think!
Rated: T - English - Romance/Friendship - Chapters: 3 - Words: 6,050 - Reviews: 19 - Favs: 44 - Follows: 75 - Updated: 3/8/2018 - Published: 5/17/2017 - Barry A./The Flash, Kara D./Supergirl
Meanwhile On Earth-1 by LiseBardKimley reviews
Independent one-shots stemming from a bunch of ideas that came from reading this article: /dc/amp/2018/01/14/arrowverse-supergirl-earth-1-crisis-on-earth-x-power-girl/
Rated: K - English - Chapters: 7 - Words: 8,529 - Reviews: 8 - Favs: 12 - Follows: 15 - Updated: 3/8/2018 - Published: 1/18/2018
We are one by KryptonianPotato reviews
Barry's life has become a quite depressing since Savitar. Iris broke up with him, his friends aren't themselves, and his relationship with joe has been going down hill. He goes to seek comfort in his super friend on earth 38. Maybe one day, they might be more than just friends.
Rated: T - English - Romance/Adventure - Chapters: 13 - Words: 12,228 - Reviews: 118 - Favs: 131 - Follows: 139 - Updated: 3/8/2018 - Published: 11/20/2017 - Barry A./The Flash, Kara D./Supergirl
Chasing Pavements by Artemis08Luna reviews
Kara sings for Barry and Oliver. OR: Barry's blind, Kara's deaf and Oliver's mute, but that doesn't stop them from being together. (KARIVARRY)
Rated: K+ - English - Romance - Chapters: 1 - Words: 771 - Reviews: 5 - Favs: 24 - Follows: 13 - Published: 3/6/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl] - Complete
Alone and Together by hanger reviews
Kara was surrounded by people, but none could help her. Mon-el was gone. She knew it had been two years, but she couldn't stop thinking of him. At least, not until a man named the Flash showed up. Barry Allen was taking care of the ones he loved, but he was alone. He didn't even enjoy running anymore. That is until he met a girl named Kara Danvers.
Rated: T - English - Romance/Hurt/Comfort - Chapters: 2 - Words: 2,181 - Reviews: 8 - Favs: 34 - Follows: 47 - Updated: 3/2/2018 - Published: 3/1/2018 - Barry A./The Flash, Kara D./Supergirl
Nextwave by KingDazed reviews
Monica Rambeau, an ex-leader of The Avenger, abruptly left Earth-616 to find her home a parallel Earth. Wally West mentors under Monica to become the fastest man alive forming the Nextwave . On arrival of Earth-38 past relationship with Lena Luthor comes to light as the arrival of the new heroes in National City struck news throughout the city. [Mature Themes]
Rated: M - English - Romance/Angst - Chapters: 11 - Words: 39,162 - Reviews: 1 - Favs: 6 - Follows: 3 - Updated: 3/1/2018 - Published: 11/28/2017 - Wally W., Kara D./Supergirl, Alex D., Lena L.
Ellie and the Music Meister by serenitykid1378 reviews
Lena finds a baby outside her apartment. The Music Meister attacks. J'onn, Alex, Lena, and the baby head to get team Flash's help. Set during Star-Crossed ending on Supergirl and the Duet episode of the Flash. No Mon-El. Supercorp. Snowbarry. A little AU.
Rated: K - English - Hurt/Comfort/Romance - Chapters: 1 - Words: 6,168 - Reviews: 2 - Favs: 39 - Follows: 24 - Published: 2/25/2018 - Barry A./The Flash, Dr. Caitlin S., Kara D./Supergirl, Lena L. - Complete
Destiny by Dewy908 reviews
The heroes are beaten, and they have lost almost everything. Humanity is very existence is being threatened. The heroes powers are weakened and they face an enemy they have no hope of beating. What ill happen when the last bit of light in this solar system is being threatened? Will the heroes stand and fight, or will they buckle under the pressure.
Rated: T - English - Adventure/Romance - Chapters: 4 - Words: 4,789 - Reviews: 10 - Favs: 15 - Follows: 13 - Updated: 2/24/2018 - Published: 12/28/2017 - [Barry A./The Flash, Kara D./Supergirl] Oliver Q./The Arrow, Alex D.
We Decide our Future by Dewy908 reviews
During the 'World's Finest' episode on Supergirl, Barry was there for weeks. He developed feelings for the alien in blue and Kara developed feelings for the meta-human in red. So how will they maintain an inter-dimensional relation ship?
Rated: T - English - Romance/Adventure - Chapters: 9 - Words: 12,821 - Reviews: 33 - Favs: 105 - Follows: 115 - Updated: 2/24/2018 - Published: 2/7/2018 - [Barry A./The Flash, Kara D./Supergirl]
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