20.4068° N 104.2238° E
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Zona horaria: UTC + 7 horas
| Viangxai → Vientiane | 320 km |
| Viangxai → Pakse | 608 km |
| Viangxai → Savannakhet | 428 km |
| Viangxai → Luang Prabang | 226 km |
| Viangxai → Pakxan | 230 km |
| Viangxai → Muang Xay | 236 km |
| Viangxai → Phonhong | 284 km |