Passengers often search for ?Can you upgrade to first-class on American Airlines after purchase??Yes, American airline passengers can purchase an upgrade to first-class after their initial flight ticket purchase at +1-8888::29II:49 or 800-AA-SUPPORT. Traveling in comfort is a priority for many, and upgrading to first class is a covered option for those flying with American Airlines. Whether you've already purchased your ticket or are planning your journey, knowing how to navigate the upgrade process can significantly enhance your travel experience.