Someone once said that the easiest way to become a millionaire is to start off as a billionaire and then purchase an airline. I truly believe in this and have always steered clear of KQ. The vagaries of this business are too many;
- Forex risk
- Fuel prices
- Debt overload
- Unionasable employees who frequently strike
- Stiff competition for international carriers etc etc

Even Buffet himself got his fingers burnt on airline stock. See caption below....

"The final business category is what Buffett calls the "gruesome" businesses. These are companies that require constant and significant investment and reward the investor with subpar returns. Where could such a lousy business exist? Look no further than the airlines. Buffett describes airlines' appetite for capital as "insatiable" and notes that the reward for all that capital investment has been a history of lousy -- and sometimes nonexistent -- earnings."