No, really, marine biologists have found squid that can fly.
… "Gliding" is too passive a term to describe what squid do when they leave the ocean for the air: "flight" is more fitting.
"From our observations it seemed like squid engage in behaviors to prolong their flight," Maciá says. "One of our co-authors saw them actually flapping their fins. Some people have seen them jetting water while in flight…”
Flapping qualifies as a whole lot better than what “flying” fish do, IMHO.