The frequent flyer programs have less lock-in than you might imagine. Many airlines have status match programs, where someone who has status in one airline's fr

The frequent flyer programs have less lock-in than you might imagine. Many airlines have status match programs, where someone who has status in one airline's frequent flier program will be extended the equivalent status in another's for a short period of time. If the passenger maintains a certain level of activity with the new airline, they keep their status.