The airport originally was operated by the United States Army Air Forces. The airport was built as a United States Army Air Forces base around 1941 and named Coolidge Airfield after Capt. Hamilton Coolidge (1895–1918), a United States Army Air Service pilot killed in World War I. Flying units assigned to the airfield were: 35th Bombardment Squadron (25th Bombardment Group) 11 November 1941 until November 1942 12th Bombardment Squadron (25th Bombardment Group) 23 November 1943 until 24 March 1944 4th Tactical Reconnaissance Squadron (Antilles Air Command) 21 May until 5 October 1945 Renamed Coolidge Air Force Base (Coolidge AFB) in 1948, it was closed as a result of budgetary cutbacks in 1949, with the right of re-entry retained by the United States. Agreements were subsequently reached with the United Kingdom and, later, the Antigua government upon independence, for the establishment and maintenance of missile tracking facilities. Antigua Air Station was established on a portion of the former Coolidge AFB. NASA utilized the Antigua facility for launch tracking services on an as-needed basis; and did so for the launch of the Mars Science Laboratory on 26 November 2011. The air station was closed in July 2015 and there are currently no foreign military bases in the country. Upon the closure of the base in 1949, it became a civil airport. It was known as Coolidge International Airport until 1985 when it was named in honour of Sir Vere Cornwall Bird (1909–1999), the first prime minister of Antigua and Barbuda. In December 2005, the Antigua and Barbuda Millennium Airport Corporation announced it would invite tenders to construct the first phase of a new passenger terminal designed to serve the airport for 30 years. In 2012, they announced the construction of its second terminal. The new terminal became operational on 26 August 2015. All flights operate from the new facility. The terminal covers 23,000 square meters (247,570 square feet), with four jet bridges, modern security screening facilities, up-to-date passenger processing and monitoring facilities, and a CCTV security system. It contains 46 check-in counters, 15 self-check-in kiosks, 5 baggage carousels, a mini food court, multiple VIP lounges, a bank, retail stores, first-class lounges, restaurants, and other facilities. Other improvements included a newly constructed car park; parallel to the old terminal, along with other airport offices. The airport was named by CARICOM as the region's most modern at the time of its opening. It is one of the largest in the Leeward Islands and serves as a major transportation hub. In May 2025 it was announced that the old terminal would be renovated to support cruise home-porting operations at the harbour in St. John's. The old terminal is currently undergoing renovation and has been renamed to Terminal B. A ground transportation hub opened at Terminal B in February 2026. As of 2026, the airport links the country to more than 50 destinations.