Ubon Ratchathani Airport is in Nai Mueang subdistrict, Mueang Ubon Ratchathani district, Ubon Ratchathani province in northeastern Thailand. It currently serves as both a commercial airport and as a Royal Thai Air Force base.

Ubon Ratchathani, often shortened to Ubon (อุบลฯ), is one of Thailand's seventy-six provinces lies in lower northeastern Thailand also called Isan. Ubon is about 630 km (390 mi) from Bangkok. Neighboring provinces are Sisaket, Yasothon, and Amnat Charoen. To the north and east it borders Salavan and Champasak of Laos, to the south Preah Vihear of Cambodia.