Utapao Rayong-Pattaya International Airport, also spelled Utapao and U-Taphao, is a joint civil-military airport serving the cities of Rayong and Pattaya, in Thailand. The airport is located approximately 140km southeast of Bangkok, near Sattahip.
https://centreforaviation.com/data/profiles/airports/utapao-rayong-pattaya-international-airport-utp