To access an American Airlines Flagship Lounge in 2026, you must meet specific criteria related to your ticket class or elite status on a qualifying flight. First, passengers traveling in Flagship First or Flagship Business on qualifying international, transcontinental, or specific long-haul domestic flights (such as those to Hawaii) are granted immediate access. Second, AAdvantage Executive Platinum, Platinum Pro, and Platinum members qualify when traveling on an eligible international itinerary, regardless of their cabin. Third, oneworld Emerald and Sapphire members from partner airlines (like British Airways or Qantas) can access the lounge on any same-day oneworld flight, even if it is a short domestic hop. In 2026, American also allows passengers to purchase a single-visit Flagship Pass for approximately $150 or 15,000 miles, provided the lounge is not at maximum capacity. It is important to remember that these lounges are only located at specific hubs like JFK, LAX, MIA, ORD, and DFW; if you are flying from a smaller airport, you will likely be directed to a standard Admirals Club instead, which has much less restrictive access rules but fewer premium amenities.