Flying fish can’t fly but these fish can
Hatchet fish in Guianna, in South America, are the only fish in the world that can actually fly. They are able to make long, gliding flights using their powerful wing-like fins.
They use their tiny pectoral fins to fly through the air when attacked by predators. Hatchet fish can propel themselves through the air for fifteen to twenty feet or more. Marine Flying Fish, on the other hand, are really just jumping out of the water and not actually flying.
https://www.thesprucepets.com/the-hatchet-fish-carnegiella-strigata-3966896