American Airlines operates as a massive network under the American Airlines Group. This includes the mainline carrier itself, as well as its regional subsidiary, American Eagle. American Eagle is not a single airline but a brand name for regional flights operated by several "regional partners," including wholly-owned subsidiaries like Envoy Air, Piedmont Airlines, and PSA Airlines. Additionally, American has codeshare and "interline" agreements with various partners through the oneworld alliance, such as British Airways, Iberia, and Japan Airlines. In 2026, the group remains one of the largest airline structures in the world, with its regional branches serving as the essential "spokes" that feed passengers from smaller cities into major hubs like Dallas/Fort Worth (DFW), Charlotte (CLT), and Chicago (ORD) for long-haul international travel.