Flight Pay

Flight PayPeople used to feel sorry for the frequent flier, the man who spent his jet-set life trying to catch sleep on a four-hour layover in St. Louis. In 1987, that same man is probably earning valuable bonus miles for his hardship--in fact, he may even have rerouted himself specifically to accumulate mileage in his frequent-flier program. There are more than 100 airlines in the United States, as well as several international carriers, that offer such programs. The concept is simple: A freque...