The average bus between Khon Kaen and Mae Sai takes 19h 22m and the fastest bus takes 19h 10m. The bus service runs several times per day from Khon Kaen to Mae Sai. 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 twice daily between Khon Kaen and Mae Sai. The earliest departure is at 8:30 PM in the evening, and the last departure from Khon Kaen is at 10:30 PM which arrives into Mae Sai at 5:40 PM. All services require a transfer at Chiang Rai and take an average of 19h 22m. The schedules shown below are for the next available departures.
Arrives next day

19h 35m • 1 change
Arrives next day

19h 10m • 1 change
Arrives next day

19h 35m • 1 change
Arrives next day

19h 10m • 1 change
Arrives next day

19h 35m • 1 change
Arrives next day

19h 10m • 1 change
Arrives next day

19h 35m • 1 change
Arrives next day

19h 10m • 1 change
Want to know about travelling from Khon Kaen to Mae Sai? 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 Khon Kaen to Mae Sai. However, there are services departing from Khon Kaen station and arriving at Mae Sai station via Chiang Rai. The journey, including transfers, takes approximately 19h 22m.
Khon Kaen to Mae Sai bus services, operated by Phetprasert Tour, depart from Khon Kaen station.
Khon Kaen to Mae Sai bus services, operated by Phetprasert Tour, arrive at Chiang Rai station.
Book your Khon Kaen to Mae Sai bus tickets online with Phetprasert Tour and Greenbus Thailand.
The distance between Khon Kaen and Mae Sai is 542 km. The road distance is 759 km.
Sombat Tour operates a bus from Khon Kaen to Chiang Rai 4 times a day. Tickets cost ฿650–1,300 and the journey takes 13h.