Airport (IWA). The Las Vegas flight began on May 19, 2016 and the Phoenix flight several days later. At the time, the MD-83 was the largest airliner ever scheduled to Santa Rosa; as of October 19, 2016, Allegiant switched from the 166 seat MD-83 to the 155 seat Airbus A319. Allegiant ended flights to Phoenix-Mesa on January 2, 2017 and to Las Vegas on June 30, 2017 and no longer serves Santa Rosa. In October 2016 American Airlines announced it would begin nonstop service between Santa Rosa and its hub in Phoenix (PHX) on February 16, 2017. The daily code share flight was being operated by SkyWest Airlines as American Eagle with Canadair CRJ-700s. American Eagle then added a second nonstop CRJ-700 roundtrip flight to Phoenix and currently operates one Canadair CRJ-900 roundtrip flight per day between Phoenix and Santa Rosa. American Eagle announced it would begin flying Embraer 175s nonstop to Los Angeles (LAX) effective May 3, 2019 and nonstop to Dallas/Fort Worth (DFW) effective June 6, 2019. American Eagle currently operates nonstop jet flights to PHX and seasonally to DFW from Santa Rosa. In February 2017 United Express announced their return to Santa Rosa with thrice daily service to the United Airlines hub in San Francisco (SFO). The flights began on June 8, 2017; SkyWest Airlines Canadair CRJ-200s operate the code sharing flights for United. United Express announced it would begin nonstop CRJ-200 regional jet flights to Denver on March 8, 2019 . However, United Express is currently not operating any service from Santa Rosa. In March 2017 Sun Country Airlines announced seasonal nonstop service between Santa Rosa and Minneapolis/St. Paul International Airport, to operate from late summer until late fall. Sun Country was operating weekly 162 seat Boeing 737-800s from August 24, 2017 through December 3, 2017, connecting via Minneapolis/St. Paul to Boston, New York John F. Kennedy Airport and Washington Reagan National Airport. Sun Country then continued to operate from the airport but had ended all service to Ronald Reagan Washington National Airport and was serving Washington Dulles Airport instead at the time. In May 2018 Sun Country Airlines made a surprise announcement that it would be adding a new seasonal destination from Santa Rosa with nonstop flights between STS and Las Vegas (LAS) in addition to its seasonal nonstop service between the airport and MSP. The Sun Country fleet is composed of Boeing 737-700s and