The average bus between Udon Thani and Bangkok takes 9h 2m and the fastest bus takes 8h 15m. The bus service runs several times per day from Udon Thani to Bangkok. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 4 hours between Udon Thani and Bangkok. The earliest departure is at 9:15 AM in the morning, and the last departure from Udon Thani is at 10:30 PM which arrives into Bangkok at 8:40 AM. All services require a transfer, and take on average 9h 2m. The schedules shown below are for the next available departures.

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8h 15m • 1 change

8h 55m • 1 change

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8h 55m • 1 change
Want to know about travelling from Udon Thani to Bangkok? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Udon Thani to Bangkok. However, there are services departing from Udon Thani station and arriving at Bangkok station via Bangkok Nakhonchai Air Terminal. The journey, including transfers, takes approximately 9h 2m.
Udon Thani to Bangkok bus services, operated by Nakhonchai Air, depart from Udonthani station.
Udon Thani to Bangkok bus services, operated by Nakhonchai Air, arrive at Bangkok Nakhonchai Air Terminal station.
Book your Udon Thani to Bangkok bus tickets online with Nakhonchai Air.
The distance between Udon Thani and Bangkok is 475 km. The road distance is 559 km.
Nakhonchai Air operates a bus from Udonthani to Bangkok Nakhonchai Air Terminal every 3 hours. Tickets cost ฿671–878 and the journey takes 7h 55m.