THE SHORT VERSION
Khon Kaen to Udon Thani at a glance.
- From
- Khon Kaen ขอนแก่น
- To
- Udon Thani อุดรธานี
- Road distance
- About 120 km
- Straight line
- 109 km
- Car time, no stops
- ~1 h 30 min buses take longer
- Return route
- Udon Thani to Khon Kaen →
THE DETAILS THAT MAKE A DIFFERENCE
Right place. Right bus. Better start.
Leaving Khon Kaen
Khon Kaen is a major city in north-east Thailand (Isan), on the main road and rail line to Laos. Long-distance buses run to Bangkok and across Isan.
- Khon Kaen bus terminals
Several terminals; long-distance services use the newer terminal outside the centre.
Arriving in Udon Thani
Tuk-tuks and songthaews connect the terminals with the centre.
- Udon Thani Bus Terminal 1
In the centre. Long-distance buses and the international bus to Vientiane. - Udon Thani Bus Terminal 2
On the edge of town. Regional services.
Keep the essentials offline
Save your ticket, the exact meeting point and the operator's phone number before you set off. Follow the check-in time on your confirmation.
- For Vientiane, the international bus is the simplest way across the border.
KEEP GOING
From Udon Thani, the road continues.
Other ways to reach Udon Thani
More buses from Khon Kaen
USEFUL FOR THIS TRIP
Sort the small things before you go.
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GOOD QUESTIONS
Before you take your seat.
How far is Khon Kaen from Udon Thani by road?+
About 120 km by road (109 km in a straight line). Distance is an OpenStreetMap routing estimate, not an operator figure.
How long does the bus from Khon Kaen to Udon Thani take?+
We don't publish timetables. As a guide, the drive takes roughly 1 h 30 min by car without stops; bus journeys are usually longer. Check the duration of your chosen departure on 12Go before booking.
Where does the bus leave from in Khon Kaen?+
It depends on the operator. Main options in Khon Kaen include Khon Kaen bus terminals, and many tourist companies collect from offices or hotels. Your ticket shows the exact boarding point.
Is there a bus back from Udon Thani to Khon Kaen?+
Yes, 12Go also lists services in the opposite direction. See our Udon Thani to Khon Kaen guide.
Where does the bus from Khon Kaen arrive in Udon Thani?+
It depends on the operator. In Udon Thani, services use Udon Thani Bus Terminal 1, Udon Thani Bus Terminal 2. Tuk-tuks and songthaews connect the terminals with the centre.
How do I get from the bus stop to the centre of Udon Thani?+
Tuk-tuks and songthaews connect the terminals with the centre.
What kind of bus runs from Khon Kaen to Udon Thani?+
It varies by operator and departure. Routes in this region are served by a mix of sleeper buses, seated coaches and smaller limousine vans. Check the vehicle type, seat layout and luggage allowance for your departure on 12Go before you book.
Can I book the Khon Kaen to Udon Thani bus online?+
Yes. 12Go lists departures on this route. You choose a date, compare operators and pay online, and the provider issues the ticket. BusConnects doesn't sell tickets itself.
Where can I go next from Udon Thani by bus?+
Direct buses from Udon Thani include Vientiane, Nakhon Ratchasima (Korat), Phitsanulok, Ubon Ratchathani, Ayutthaya and more. See all connections on our Udon Thani bus page.
FOLLOW THE INFORMATION
Clear sources. Better decisions.
Route listed in 12Go's public route index (checked 2026-10-09). Station information reviewed 2026-10-09. Distance: OpenStreetMap data via OSRM (approximate driving distance). Listings change and are not live inventory. Confirm the departure, pickup, price and conditions before paying.
12Go: Khon Kaen to Udon Thani bus route listing ↗Wikivoyage: Khon Kaen (Get in) ↗Wikivoyage: Udon Thani (Get in) ↗How BusConnects uses sources →