Yes, United Airlines is not only a member of Star Alliance, but it was one of the founding members of the alliance when it was established in 1997. As of 2026, United remains a cornerstone of this global network, which is the largest airline alliance in the world. This membership provides a high-fidelity benefit for travelers, as it allows United passengers to earn and redeem MileagePlus miles on over 25 other partner airlines, including Lufthansa, Air Canada, ANA, Singapore Airlines, and Turkish Airlines. Furthermore, United’s "Premier" members enjoy reciprocal benefits across the alliance, such as priority check-in, extra baggage allowance, and access to over 1,000 Star Alliance lounges worldwide. For international travelers flying out of United hubs like Chicago O'Hare or Newark, this partnership ensures seamless connectivity to hundreds of global destinations on a single ticket. The Star Alliance logo is prominently displayed on United’s aircraft and boarding passes, signifying its long-standing role as a leader in global aviation cooperation.