United Airlines’ Longest Nonstop Routes With The Boeing 777-300ER In 2025

United Airlines is one of the popular United States-based airlines in the world. The Chicago, Illinois-based airline was first formed in the late 1920s after several popular airlines, such as Varney Air Lines, merged. Because of this, United Airlines is the oldest domestic commercial airline. The airline has experienced considerable growth, ranking among the world’s largest airlines. In 2024, United Airlines was the top airline in the world in available seat miles (ASM), listing over 311 billion ASMs.