THE SHORT VERSION
Khon Kaen to Ubon Ratchathani at a glance.
- From
- Khon Kaen ขอนแก่น
- To
- Ubon Ratchathani อุบลราชธานี
- Road distance
- About 286 km
- Straight line
- 255 km
- Car time, no stops
- ~3 h 45 min buses take longer
- Return route
- Ubon Ratchathani 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 Ubon Ratchathani
Songthaews and tuk-tuks run into the centre.
- Ubon Ratchathani bus terminal
North of the centre. Long-distance and international buses.

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.
- International buses to Pakse cross at Chong Mek. Check Lao visa rules.
KEEP GOING
From Ubon Ratchathani, the road continues.
Other ways to reach Ubon Ratchathani
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 Ubon Ratchathani by road?+
About 286 km by road (255 km in a straight line). Distance is an OpenStreetMap routing estimate, not an operator figure.
How long does the bus from Khon Kaen to Ubon Ratchathani take?+
We don't publish timetables. As a guide, the drive takes roughly 3 h 45 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 Ubon Ratchathani to Khon Kaen?+
Yes, 12Go also lists services in the opposite direction. See our Ubon Ratchathani to Khon Kaen guide.
Where does the bus from Khon Kaen arrive in Ubon Ratchathani?+
It depends on the operator. In Ubon Ratchathani, services use Ubon Ratchathani bus terminal. Songthaews and tuk-tuks run into the centre.
How do I get from the bus stop to the centre of Ubon Ratchathani?+
Songthaews and tuk-tuks run into the centre.
What kind of bus runs from Khon Kaen to Ubon Ratchathani?+
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 Ubon Ratchathani 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 Ubon Ratchathani by bus?+
Direct buses from Ubon Ratchathani include Pakse, Nakhon Ratchasima (Korat), Udon Thani, Ayutthaya, Don Mueang Airport (DMK) and more. See all connections on our Ubon Ratchathani 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 Ubon Ratchathani bus route listing ↗Wikivoyage: Khon Kaen (Get in) ↗Wikivoyage: Ubon Ratchathani (Get in) ↗How BusConnects uses sources →