SuperFlash

SuperFlash is the ship between Kara Zor-El and Barry Allen.

Canon
Kara and Barry meet when Barry's training to improve his speed and runs fast enough to cross the dimensional barrier to Earth-38, where he saves Kara's life. She informs his this was unnecessary and flies away, revealing that she's Supergirl. Barry follows and they collide, both realizing that they're both superheroes. Barry enlists Kara's help to return to his earth, while Kara is thrilled to have a 'superhero colleague' with which to share understanding of her lifestyle.

When the Dominators threaten Earth, Kara accompanies Barry to meet the Legends and Team Arrow for the first time. When Barry tells the team-up about Flashpoint, Kara is one of the only people to stand by Barry, saying that she'll always trust him.

Fandom
AO3

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