There's so much to learn about Ubon Ratchathani Airport (UBP-Ubon Ratchathani Intl.), but there's no need to feel overwhelmed. Before you pick up the keys to your rental car, let's start off with the essentials.Ubon Ratchathani Airport (UBP-Ubon Ratchathani Intl.) is situated 4 miles to the southeast from downtown Ubon Ratchathani.