Philippine Airlines (PAL) is the flag carrier of the Philippines and is recognized as Asia's oldest operating commercial airline, having been established in 1941. It operates an extensive network of domestic and international routes, serving destinations across Asia, North America, the Middle East, Australia, and Europe. The airline is headquartered in Pasay City, Metro Manila, and uses Ninoy Aquino International Airport as its primary hub. PAL is a member of the oneworld global airline alliance, which expands its reach through codeshare and interline partnerships with major carriers worldwide. Philippine Airlines underwent a financial restructuring process, filing for Chapter 11 bankruptcy protection in the United States in 2021 before successfully emerging from the process later that year. The restructuring allowed the airline to reduce its fleet and liabilities while continuing operations.