A great move on the part of Southwest, however I think they should have done a bit more research before setting their schedules. The only flight during the week from Houston to Belize City arrives late in the afternoon. It will be a push to get through customs, and get to the water taxis before the last ones depart if you are traveling on to Ambergris or Caye Caulker. There is an earlier arrival on Saturday. United has already reduced fares to compete with SWA.