Mexico, Canada and the United Kingdom are among the most popular destinations for travelers in the U.S.1 this Easter period, according to analysis conducted by travel experts. Amongst the top 10 most popular destinations, the ones which had seen the greatest year-on-year increase in Easter flight bookings were Spain, up 33.6% (+4615 bookings in 2018), Canada, up 25.7% (+9198 bookings in 2018) and a close third, Puerto Rico, up 25.6% (+4279 bookings in 2018). Global distribution systems (GDS) are vast hi-tech reservation networks that allow travel agents, travel management companies and large corporations, among others, to search and book airline seats, hotel rooms, rental cars, and other travel related items.