Introduction Flying with Japan Airlines (JAL) provides comfort, efficiency, and world-class service, but even economy seats on long-haul flights can feel tight. Travelers often ask: Can you upgrade your seat after purchase on Japan Airlines? The answer is yes. You can move up to Premium Economy, Business Class, or even First Class using a combination of seat selection strategies, paid upgrades, bid programs, and mileage awards . Understanding the process can save money, impr