Jan. 16, 2026, 2:20 p.m. ET Elon Musk on Friday called Ryanair CEO Michael O’Leary an “utter idiot” who should be fired, escalating a public spat that began after the airline boss ruled out installing Musk’s Starlink internet service on Ryanair aircraft. O’Leary on Wednesday dismissed the idea of equipping any of Ryanair’s more than 600 jets with Musk’s Starlink, citing the impact of fuel costs from drag caused by the antenna and estimating the service would cost the airline up to $250 million a year. Musk responded on his social media platform X, saying that O’Leary was “misinformed” and arguing that Ryanair did not know how to measure the fuel impact of Starlink equipment.