By Air:
Flights from Bangkok's Suvarnabhumi (BKK) or Don Mueang (DMK) airports to Udon Thani International Airport (UTH) typically take about 1 hour and 10 to 15 minutes. Airlines such as Thai AirAsia, Nok Air, Thai Lion Air, Thai VietJet Air, and Thai Airways operate this route. Fares can range from approximately $9 to $17 for a one-way trip, with round-trip options from $17 to $26.