There are two common methods to get to Pakse across the border in Laos. One is to catch the VIP bus leaving from the main bus station (bor kor sor) in the north of town. There are two buses per day, 9am and 3pm. If you can't make this bus there are regular minivans leaving from the main bus station (stand 18) every half hour. The cost to the border town of Chongmek is 100 baht. From the Chongmek minivan terminal you can take a tuktuk the extra 1km to the border for 20 bath. Once on the Lao side it's 30,000 kip (about 120 baht)(2014)by minivan to Pakse. Cheaper Songtaew's make the trip from the border to Pakse for 15,000 kip but take quite a bit longer as generally locals who are not going the whole way to Pakse take this option. If you don't know where to get off in Pakse get off soon after you cross the Mekong Bridge - or you might end up way out of town!