in November 12 ,we plan a tour of the South followed by a tour of the North followed by beach time in Thailand. We want to leave our timetable as flexible as possible for the month , so will only be booking our flight out of Laos to BKK with up to 5 days notice.
My question is would it be better to finish our tour of the North in LP or Vientiane with regards to the availability and cost of flights to BKK. I get the impression that the flight LP to BKK is similar to that of Siem Reap to BKK, i.e. the prices are high as they are popular with tourists.