S/Jongkhar is a three day bus ride from Thimphu, and the nearest direct services terminate in Trashigang and Mongar where travelers will need to spend the night before departing on a different bus the next morning (consider purchasing an onward ticket on arrival as buses on the final leg of the journey are often full). Prior to that, there is a one night stop in Jakar, but it is the same bus that continues the next morning. The most comfortable buses are the small Japanese coaster buses, which operate as far as Mongar and Trashigang. If there are no seats available on the coaster buses to either Mongar or Trashigang, consider taking one as far as Jakar (to where there is a more frequent service), and then purchase an onward ticket on an ordinary inter-district bus from there.