I took a nostalgia flight in American Airlines’ soon-to-be-retired international Flagship First: Here’s where you can still find it … I booked American Airlines Flagship First An American Airlines 777-300ER. CLINT … class on an international American Airlines, British Airways or other … 777-300 and Airbus A321XLR aircraft, featuring a new interior with … you get the chance to buy up at a decent …