If they were to do a spinoff called 'United We Fly: The Unfriendly Skies', all the cast for the stews would need to be over 50 and sit in the backrow of the plane for 95 percent of the flight and complain to each other about: other stews, the lead stew on that flight, their work schedules (flight route assignments), other stews, the cockpit crew, other stews, the gate agent, other stews, the hotel shuttle, other stews, the passengers, the best places to eat near the airport hotels in Newark/LA/Houston/SFO/Denver, and other stews.
For example, good casting for United We Fly: The Unfriendly Skies stews would include Roseanne Barr, Lindsay Lohan once she hits 50 (if she makes it that far), Andy Dick, Kathy Griffin, Peewee Herman, Helena Bonham Carter, and Shia Lebouf (he is nott over 50, butt we'll make a special exception for His Surlyhood - doesn't Le Bouf mean a fart in French???).