United Airlines Inc. (NASDAQ:UAL) will offer Elon Musk-owned Starlink’s WiFi onboard its mainline flights, after the company received approval from the FAA to offer the service onboard a Boeing Co. (NYSE:BA) 737 aircraft last month.Check out UAL stock here.Lightning-Fast Wi-FiThe carrier shared the update in an announcement on the social media platform X on Wednesday. "Lightning-fast Starlink Wi-Fi is now on board our first mainline aircraft," the company said in the post.The company added that the service ...