Airport Ban Houei Sai
- URL: Ban Houei Sai (OUI)
- Time zone: GMT 7
- Address: Ban Huoeisay, Laos
- Operating company: Department of Civil Aviation - Lao Ministry of Public Works and Transport (Lao PDR)
- Flight distribution on the days of the week: Monday (18.18%), Tuesday (18.18%), Wednesday (18.18%), Thursday (18.18%), Friday (18.18%), Saturday (9.09%), Sunday (0.00%)
- Alternative spelling: Ban Houay Xay, Ban Houei, Ban Huoeisay, Ban Houayxay, Huoixai, Хуайсай, フアイサーイ郡, ห้วยทราย, 會晒, ຫ້ວຍຊາຍ