Frontier's flights to Denver ended in January 2013. Allegiant Air began flights to Phoenix/Mesa in February 2013, and in March 2013 announced twice-weekly flights to Oakland International Airport beginning June 7, 2013. On July 4, 2013, it was announced that Allegiant Air would begin flying to Los Angeles International Airport beginning September 26, 2013. In June 2016, Allegiant Air announced it would begin flying to San Diego International Airport beginning September 28, 2016. Service to Oakland and San Diego was suspended in 2018. Service to Tucson International Airport began on Nov 16, 2018. In August 2020, Allegiant Air announced it would begin flying to Denver International Airport beginning November 19, 2020.