(Bloomberg) -- Less than a week after hitting a three-year high, European airline stocks are having their worst day in more than six months.Most Read from BloombergSaudi Arabia’s Neom Signs $5 Billion Deal for AI Data CenterNice Airport, If You Can Get to It: No Subway, No Highway, No BridgeSin puente y sin metro: el nuevo aeropuerto de Lima es una debacleThe Forgotten French Architect Who Rebuilt MarseilleIn New Orleans, an Aging Dome Tries to Stay SuperA UBS Group AG basket of eight European a