 Sphere has mainly hosted Music Act residencies and special events since its opening. The first sports-related event takes place this week with the NHL Draft at the arena Friday and Saturday. Allegiant Travel Company has been named 2024's Best Low-Cost Airline in North America by Skytrax, the international air transport rating organization. Allegiant's president, Gregory C. Anderson, received the award during Skytrax's World Airline Awards ceremony held in London earlier this week.