1997–1999: Founding and early years The Star Alliance was announced on 14 May 1997 by five airlines from three continents:
Air Canada,
Lufthansa,
Scandinavian Airlines,
Thai Airways International and
United Airlines. The group adopted a shared star-shaped logo, with each point representing a founding member. Its first slogan was “The Airline Network for Earth,” and it aimed to connect passengers to major cities worldwide.
VARIG, a now-defunct Brazilian airline, joined the alliance on 22 October 1997, marking its expansion into South America.
Ansett Australia and
Air New Zealand also joined, extending the network into Australia and the Pacific. With these additions, the alliance served 720 destinations in 110 countries and operated a combined fleet of 1,650 aircraft.
All Nippon Airways became the second Asian airline to join on 15 October 1999.
2000s: Expansion and first decade During the early 2000s, a number of airlines joined Star Alliance; the
Austrian Airlines Group (
Austrian Airlines,
Tyrolean Airways and
Lauda Air) joined on 26 March 2000 and
Singapore Airlines on 1 April.
BMI and
Mexicana joined on 1 July, bringing the alliance's membership to 13. With Singapore Airlines' entry into the alliance, Thai Airways considered moving to
Oneworld, but eventually decided to remain. The addition of BMI made
London Heathrow the only European hub with two alliances. During the year,
Emirates considered joining Star Alliance, but decided against it. That year the now-defunct
BWIA West Indies Airways, which had entered an alliance with United Airlines, considered becoming a member but did not.
Asiana Airlines joined the alliance on 28 March 2003,
Spanair on 1 May 2003, followed by
LOT Polish Airlines (Poland's
flag carrier) joining in October. Around this time, Mexicana Airlines left the alliance after deciding not to renew a
codeshare agreement with United Airlines, later joining
Oneworld. becoming its second US-based airline. In November,
Adria Airways,
Blue1 and
Croatia Airlines joined the alliance as its first three regional members. Although Star Alliance invited
Lineas Aereas Azteca to join in 2005, the airline filed for bankruptcy in mid-2007.
TAP Air Portugal joined on 14 March 2005, adding African destinations to the network. In April 2006,
Swiss International Air Lines, the alliance's sixth European airline, and
South African Airways (its first African carrier) became the 17th and 18th members. By May 2007, Star Alliance's 10th anniversary, its members had a combined 16,000 daily departures to 855 destinations in 155 countries and served 406 million passengers annually. The alliance introduced Biosphere Connections, a partnership with
UNESCO, the
International Union for Conservation of Nature (IUCN), and the
Ramsar Convention on Wetlands to promote environmental sustainability. VARIG left the alliance on 31 January 2007, and the two Chinese airlines,
Air China and
Shanghai Airlines, joined on 12 December. On 1 April 2008,
Turkish Airlines joined the alliance after a 15-month integration process beginning in December 2006, becoming its 20th member.
EgyptAir, Egypt's national airline and Star Alliance's second African carrier, joined on 11 July 2008. On 27 October 2009,
Continental Airlines became the 25th member of Star Alliance after leaving
SkyTeam three days earlier. According to Alliance CEO Jaan Albrecht, "Bringing Continental Airlines into Star Alliance has been a truly unique experience. This is the first time an airline has moved directly from one alliance to another, and I would like to thank all those involved in ensuring a smooth switch". At the time, it was rumored that the switch was Continental's first move in a planned merger with United Airlines. Eventually on 2 May 2010, United and Continental announced they would be merging under the United name; the merger was completed on 1 October 2010. On 26 December 2009,
Brussels Airlines joined the alliance.
2010s: Further expansion and second decade of operations in April 2012: Thai, United, Swiss and SAS (the airlines that later are no longer a part of the alliance) Brazilian carrier
TAM Airlines joined Star Alliance on 13 May 2010, increasing its foothold in South America.
Aegean Airlines, Greece's largest airline by number of passengers, joined on 30 June.
Shanghai Airlines left the alliance on 31 October 2010 when it merged with
China Eastern Airlines, a
SkyTeam member. On 29 September, the chief executive board approved
Ethiopian Airlines as Star Alliance's 30th member, though Ethiopian did not officially join the alliance until December of the following year. In 2010, the alliance flew to 1,172 airports in 181 countries, with about 21,200 daily departures. 2012 and 2013 were tumultuous years for Star Alliance, starting with two key departures but ending with a major move into Latin America. In Europe,
Spanair ceased operations, and
BMI left after being acquired by
International Airlines Group (IAG), the parent company of
Oneworld members
Iberia and
British Airways. BMI was integrated into British Airways. In North America, Continental merged with
United Airlines, reducing Star Alliance's membership further, even if it effectively remained in the alliance after the merger. On 21 June, though, Avianca, TACA Airlines and Copa Airlines joined, massively increasing the alliance's Latin American presence. In November,
Blue1 left after becoming an affiliate of parent
Scandinavian Airlines, while
Shenzhen Airlines joined, augmenting Air China's Chinese network. Taiwanese carrier
EVA Air then joined on 18 June 2013, and after
TACA's integration into
Avianca, the alliance grew to 28 members, making it the largest of the three major airline alliances. On 13 December,
Air India was again invited to begin an integration process with Star Alliance and joined the alliance on 11 July 2014. Following this string of expansions, 2014 opened with two major departures through mergers. First, Brazilian carrier
TAM Airlines merged with
LAN Airlines to become
LATAM Airlines Group, leaving the alliance without a presence in the world's fifth-largest country. Next,
US Airways completed its merger with
American Airlines and also left the alliance. Both parent companies stayed with
Oneworld. On 24 June, though, the alliance finally approved
Air India, which joined on 11 July, leaving the alliance at 27 members. Future expansion centers around the addition of
Connecting Partners, subsidiaries or partners of alliance members, which will add connectivity to the alliance without becoming full members.
Avianca Brasil joined in this way on 22 July 2015, bringing the alliance back into the Brazilian market and partially filling the void left by Varig and TAM. South African Airways' low-cost subsidiary, Mango, was initially announced to join as a Connecting Partner in Q3 2016, but has since been delayed.
Juneyao Airlines, which codeshares with
Shenzhen Airlines, joined as a Connecting Partner on 23 May 2017. On 20 August 2019, Star Alliance announced affiliate member Avianca Brasil's exit from the alliance from 1 September 2019. The departure, however, will not affect Avianca's membership. On 30 September 2019,
Adria Airways ceased operations, and the airline exited the alliance on 2 October 2019.
2020s: 25th anniversary and restructuring of several member airlines The now-defunct regional subsidiary of Thai Airways,
Thai Smile, joined as a Connecting Partner in February 2020. In January 2024, the Thai Smile brand was discontinued and folded into the parent airline as a result of the reorganization of
Thai Airways International following bankruptcy. On 16 November 2020,
Asiana Airlines announced its plans to exit the alliance.
Asiana will merge with Korean Air, the
South Korean Government confirmed, in a $1.6 billion acquisition by the
SkyTeam member. After the
United States Department of Justice approved the merger in December 2024, the merger was completed and
Asiana Airlines became a subsidiary of
Korean Air. No date was given for when the airline will depart Star Alliance, until Asiana ends its 38 years of operation and will be integrated into Korean Air in early 2027. In October 2023, as a part of the restructuring of Scandinavian Airlines' parent company
SAS Group,
Air France-KLM, along with the
Government of Denmark and two financial firms (Castlelake and Lind Invest), announced plans to invest in Scandinavian Airlines. In March 2024, the US Bankruptcy Court approved the investment, along with the Stockholm District Court on 12 June 2024 and the European Commission on 28 June 2024. As a result of the investment,
Scandinavian Airlines left Star Alliance on 31 August 2024 and joined
SkyTeam on 1 September 2024. In January 2025, Lufthansa Group acquired a 41 percent stake in
ITA Airways, a
SkyTeam member. The European Commission approved the acquisition of ITA in July 2024. On 3 February 2025,
ITA Airways announced that it was leaving SkyTeam following the acquisition by Lufthansa Group. ITA Airways joined Star Alliance on 1 April 2026. == Member airlines and affiliates ==