Yapta allows you to group a list of different flights under a single Trip.  This is an easy way to organize all those flights you are watching for that next vacation. Each Trip can contain unique flights that are either Booked Flights or Tracked Flights. 

A Booked Flight is a flight that has already been purchased.  Yapta will track these flights and notify you when you become eligible for a voucher or credit from the airline. 

A Tracked Flight is a flight that has not been purchased but you are watching.  Yapta will notify you when the price of that trip drops.