Flash and Supergirl Crossovers
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The Justice League: Dystopian Destruction by Cw arrowverse stories reviews
Lex Luther has become president and has sent out a army to exterminate all metahumans especially the members of the justice league. (Cw shows x justice league)
Rated: K+ - English - Suspense/Adventure - Chapters: 2 - Words: 2,124 - Reviews: 2 - Favs: 3 - Follows: 2 - Updated: 12/19/2017 - Published: 11/3/2017 - Barry A./The Flash, Carter H./Hawkman, Kara D./Supergirl, Clark K./Superman
Maybe on another Earth by turambar499 reviews
The Crisis on Earth X crossover was pretty light on moments between Kara and Barry, but I decided to play around with it anyway. This is a short retrospective of their moments at the end of Supergirl 1x18 (Worlds' Finest) and during the wedding rehearsal in Supergirl 3x08 (Crisis on Earth X, Part I), with a little fleshing out of the scenes. Rated K.
Rated: K - English - Friendship/Romance - Chapters: 1 - Words: 1,662 - Reviews: 9 - Favs: 21 - Follows: 14 - Published: 12/16/2017 - Barry A./The Flash, Kara D./Supergirl - Complete
A Glimpse Into The Multiverse by CallMeMiles reviews
The Mutliverse states that anything that can happen will happen. The possibilities are endless. Take a look as we see Barry and Kara across the Multiverse
Rated: K+ - English - Romance/Friendship - Chapters: 1 - Words: 8,310 - Reviews: 14 - Favs: 61 - Follows: 26 - Published: 12/11/2017 - Barry A./The Flash, Kara D./Supergirl - Complete
The Missing Piece by Felicity Danvers reviews
AU where the worlds merge in World's Finest. Superflash, Reigncorp (with a not evil Sam), mentioned Sanvers and implied Olicity. Also motherly Cat. Lena, Sam, Cat, and Lois all know Kara's identity. Some characters are around some aren't around. Timeline not accurate. I might continue this, but for now, it's complete. This would be Earth-36.
Rated: K+ - English - Romance/Friendship - Chapters: 1 - Words: 4,365 - Reviews: 6 - Favs: 25 - Follows: 15 - Published: 12/10/2017 - [Barry A./The Flash, Kara D./Supergirl] [Lena L., Samantha A./Reign] - Complete
The Power of Twins by whiteabyss89 reviews
My name is Ky-El. I'm the twin brother to Kara Zor-El, more commonly known as Supergirl. We were sent to look after our baby cousin after our home was destroyed but something happened, and we were trapped in the Phantom Zone. Years later we made it to Earth, only to discover our baby cousin was now a man; you know him as Superman. Join us as we grow, learn, love, and find adventure
Rated: T - English - Family/Adventure - Chapters: 6 - Words: 42,701 - Reviews: 31 - Favs: 87 - Follows: 85 - Updated: 12/9/2017 - Published: 7/9/2017 - [Barry A./The Flash, Kara D./Supergirl] OC
Our Leader by FallenQueen2 reviews
When the leader of the SS is someone with a far more familiar face than Eobard Thawne. Part Three of Earth X Au's. Oneshot
Rated: K+ - English - Hurt/Comfort/Angst - Chapters: 1 - Words: 1,710 - Reviews: 12 - Favs: 56 - Follows: 38 - Published: 12/5/2017 - Barry A./The Flash, Iris W., Oliver Q./The Arrow, Kara D./Supergirl - Complete
The Power Couple by Akiatta reviews
Misunderstood and Judged by those whom the heroes swore to protect, Barry and Kara find comfort from each other. The story revolves around two super powered individuals who discover Love, Peace and Happiness. Something that is hard to find for them. Barry/Kara
Rated: T - English - Drama - Chapters: 30 - Words: 102,268 - Reviews: 111 - Favs: 205 - Follows: 202 - Updated: 12/3/2017 - Published: 5/17/2016 - Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl
Super Family by Dewy908 reviews
Set after 'Heroes No More'. Barry and Kara have started a family, and it just keeps getting bigger.
Rated: T - English - Romance - Chapters: 2 - Words: 2,392 - Reviews: 25 - Favs: 31 - Follows: 32 - Updated: 12/3/2017 - Published: 10/3/2017 - [Barry A./The Flash, Kara D./Supergirl]
Where He Belongs by FallenQueen2 reviews
My version of what happened to Earth X's Barry Allen and how the SS came about thanks to Kara and Oliver. No Nazi's in this one! Part one of Earth X AU
Rated: T - English - Drama/Angst - Chapters: 1 - Words: 2,854 - Reviews: 19 - Favs: 85 - Follows: 53 - Published: 12/1/2017 - Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl - Complete
The Coveted Flash Suit by Chevalier Lecteur reviews
It all started with the coveted Flash suit. After Kara and Barry escape the musical world, Kara decides to try on Barry's Flash suit, things don't go how she thought.
Rated: K+ - English - Romance/Humor - Chapters: 1 - Words: 1,491 - Reviews: 6 - Favs: 48 - Follows: 19 - Published: 12/1/2017 - [Barry A./The Flash, Kara D./Supergirl] - Complete
A kryptonite arrow by Petrobella reviews
SPOILER ALERT! My take on how Supergirl is captured during the two night crossover event starting tonight
Rated: T - English - Chapters: 1 - Words: 2,635 - Reviews: 5 - Favs: 17 - Follows: 21 - Published: 11/27/2017
In Time and Space by Fansquealing reviews
In another Universe, Barry Allen and Kara Danvers are best friends and in love with each other. They just don't know it yet. How will they feel when they discover that the other has been keeping an enormous secret - BIG enough to ripple time and space itself? Will it bring them closer together or tear them farther apart? {Discontinued!}
Rated: T - English - Sci-Fi/Romance - Chapters: 9 - Words: 34,184 - Reviews: 76 - Favs: 84 - Follows: 109 - Updated: 11/27/2017 - Published: 12/10/2016 - [Barry A./The Flash, Kara D./Supergirl]
Duet: Alternate ending by KarryLover2004 reviews
AU where Iris and Mon-el do not save Kara and Barry right after they get shot. Bad at summaries please forgive me.
Rated: T - English - Romance/Adventure - Chapters: 6 - Words: 6,272 - Reviews: 13 - Favs: 52 - Follows: 44 - Updated: 11/13/2017 - Published: 5/15/2017 - [Barry A./The Flash, Kara D./Supergirl] Cisco R., Alex D. - Complete
Supergirl Flash Musical AU by ijedi reviews
AU of Supergirl Flash Musical crossover. Instead of only Mon El, Hank, and Kara coming to Earth 1, Alex also comes since she wants to help her sister. Music Meister also teaches a lesson to Mon El on what love is, and that there are different kinds of love. Also, brief but funny appearance of Maggie in the end. Kara and Mon El broke up for real.
Rated: T - English - Family/Romance - Chapters: 1 - Words: 2,219 - Reviews: 1 - Favs: 13 - Follows: 9 - Published: 11/12/2017 - Barry A./The Flash, Iris W., Kara D./Supergirl, Alex D. - Complete
A Little Karaoke Doesn't Hurt by jeremy jordan can't dance reviews
Kara convinces Barry to stay in National City just long enough for one game night. But what no one of expecting is...dang, those heroes have got some pipes! Not-so-hidden Glee references, lots of friendship fluff, but can be read as Barry X Kara sometimes. No longer a one-shot! (New chapter: post-crossover)
Rated: K - English - Humor/Friendship - Chapters: 2 - Words: 3,166 - Reviews: 10 - Favs: 79 - Follows: 48 - Updated: 11/4/2017 - Published: 6/5/2016
New Justice World- Rebuilding the League by CharmedMilliE- Karry Master reviews
The Reverse Flash has been defeated and sent to jail but the Justice League is still dead. It's up to the Flash and Supergirl to find new heroes and rebuild the league. Who will join this New Justice League and what dangers await them. Part of the Millma Verse.
Rated: T - English - Adventure - Chapters: 19 - Words: 145,470 - Reviews: 170 - Favs: 65 - Follows: 43 - Updated: 11/2/2017 - Published: 7/16/2017 - OC, Kara D./Supergirl - Complete
My Super Friend by oncerSM reviews
After a terrible day without Mon-el Kara finds herself needing a friend to help her out. Who does she call on but Barry Allen? Long story short: He brings very alcoholic drinks, they get extremely drunk, and have some fun. AKA either the worst or best story EVER, you decide. Set in season 4 of Flash and season 3 of Supergirl
Rated: T - English - Hurt/Comfort - Chapters: 1 - Words: 1,065 - Reviews: 8 - Favs: 34 - Follows: 17 - Published: 11/2/2017 - Barry A./The Flash, Kara D./Supergirl, Alex D.
Finding Astra by CharmedMilliE- Karry Master reviews
On a completely new Earth when Kara's Twin sister returns with her new husband questioned are finally asked and secrets uncovered. Is Astra still alive? If so where is she? Part of the Millma Verse.
Rated: T - English - Family - Chapters: 5 - Words: 16,286 - Reviews: 32 - Favs: 54 - Follows: 44 - Updated: 10/26/2017 - Published: 9/28/2017 - [Barry A./The Flash, OC] [Kara D./Supergirl, Mon-El] - Complete
Heroes in College by Dewy908 reviews
Barry got his powers in high school and defeated all his villains up to the end of season 2. Kara has been hiding her powers. They both get a chance to practice there abilities and learn how to be or how to be a better hero at Young Justice and they both end up falling in love. Inspired by 'Adventures of Justice Academy' by Akiatta.
Rated: T - English - Romance/Adventure - Chapters: 15 - Words: 20,392 - Reviews: 50 - Favs: 70 - Follows: 50 - Updated: 10/25/2017 - Published: 8/3/2017 - [Barry A./The Flash, Kara D./Supergirl] - Complete
The Betrayed Hero by CosmicSpeedster reviews
Barry is betrayed and hurt by Iris when he found out that she was cheating on him behind his back.He goes to a person who will truly understand him, but will their friendship evolve into something more? A SuperFlash/Karry fanfic about love(obviously). Disclaimer: As much as I want to,I do not own The Flash
Rated: T - English - Romance/Drama - Chapters: 5 - Words: 4,939 - Reviews: 19 - Favs: 89 - Follows: 97 - Updated: 10/19/2017 - Published: 7/4/2017 - [Kara D./Supergirl, Barry A./The Flash]
A New Beginning by Red-Skye12 reviews
"With great power,comes with great responsibility." Waking up from the 10 months coma, Jared thought everything was fine until she learn the truth about her life.
Rated: K - English - Family - Chapters: 1 - Words: 41 - Reviews: 1 - Published: 10/14/2017 - Barry A./The Flash, Kara D./Supergirl, OC
Phantom by Lorris the Terror reviews
The story has nothing to do with the title. Let's just say that Barry and Kara meet twins known as the Twin Terrors Lorris and Nilla, and things get a little hectic from there. Party cannons, banana war, food fights, clones of villains, laughter, cheesiest romance ever, Cupid's Arrows flying all over the place, and supercalifragilisticexpialidocious. And llamas. WARNING: ATROCIOUS.
Rated: K+ - English - Humor/Adventure - Chapters: 11 - Words: 20,832 - Reviews: 6 - Favs: 2 - Follows: 2 - Updated: 10/10/2017 - Published: 6/8/2017 - [Barry A./The Flash, Kara D./Supergirl] OC, OC
Their Super Friends by cornholio4 reviews
A Karry oneshot Drabble. Barry and Kara the superpowered inter dimensional couple have a brief discussion on their fellow superheroes.
Rated: T - English - Romance/Humor - Chapters: 1 - Words: 633 - Reviews: 1 - Favs: 17 - Follows: 7 - Published: 10/10/2017 - [Barry A./The Flash, Kara D./Supergirl] - Complete
Heroes No More by Dewy908 reviews
After the Justice League fought Doomsday in Metropolis, with superman delivering the final blow, the unthinkable happened. Superman was dead. After the government decided that superheroes should operate under there supervision, and if not they will be hunted. This causes a divide among the heroes. They all have to pick a side, be a vigilante or work for the government. (Arrowverse)
Rated: T - English - Adventure/Romance - Chapters: 13 - Words: 13,783 - Reviews: 48 - Favs: 49 - Follows: 43 - Updated: 10/3/2017 - Published: 7/30/2017 - [Barry A./The Flash, Kara D./Supergirl] Oliver Q./The Arrow, Clark K./Superman - Complete
A Sweeter Harmony by moragh33 reviews
How much more fun would that Flash crossover musical episode have been if the Music Meister shipped Kara with Lena instead of that other guy? A whole bunch more fun is the answer you're looking for :)
Rated: T - English - Romance/Adventure - Chapters: 10 - Words: 34,748 - Reviews: 18 - Favs: 131 - Follows: 92 - Updated: 9/30/2017 - Published: 9/17/2017 - [Lena L., Kara D./Supergirl] Barry A./The Flash, Alex D. - Complete
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