Tata SIA Airlines Limited was an Indian full-service airline, based in Gurgaon, with its hub at Indira Gandhi International Airport. The carrier, a joint venture between Tata Sons and Singapore Airlines, commenced operations on 9 January 2015 with its inaugural flight between Delhi and Mumbai. The airline had carried more than two million passengers by June 2016 and as of September 2024, had a 10.0% share of the domestic carrier market, making it the 3rd largest domestic airline, behind IndiGo and Air India. The airline served 50 destinations with a fleet of Airbus A320neo, Airbus A321neo and Boeing 787-9 aircraft. On 12 November 2024, the airline's operations were ceased following a merger with the country's flag carrier Air India.