Sam Neua Airport (IATA: NEU, ICAO: VLSN) is a small domestic airport located near Sam Neua, the capital of Houaphanh Province in northeastern Laos. Situated in a mountainous region close to the Vietnamese border, the airport serves as a vital air link for a province that is otherwise difficult to access by road. The airport handles limited scheduled domestic traffic, primarily connecting Sam Neua to the Lao capital Vientiane. Given the challenging terrain of Houaphanh Province, air travel is often the most practical option for reaching the area, particularly during the rainy season when road conditions deteriorate significantly. Sam Neua itself is historically significant as the base of operations for the Pathet Lao revolutionary movement, and the surrounding region contains notable cultural and historical sites, including the Vieng Xai cave complex. The airport plays a modest but important role in supporting tourism and regional connectivity.