THE SHORT VERSION
Udon Thani to Ayutthaya at a glance.
- From
- Udon Thani อุดรธานี
- To
- Ayutthaya พระนครศรีอยุธยา
- Road distance
- About 521 km
- Straight line
- 415 km
- Car time, no stops
- ~6 h 30 min buses take longer
- Return route
- Ayutthaya to Udon Thani →
THE DETAILS THAT MAKE A DIFFERENCE
Right place. Right bus. Better start.
Leaving Udon Thani
Udon Thani is a city in north-east Thailand, about an hour from the Lao border at Nong Khai. International buses run to Vientiane, and long-distance buses to Bangkok and across Isan.
- 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.
Arriving in Ayutthaya
Rent a bicycle or hire a tuk-tuk to see the temples.
- Ayutthaya minivan and bus stops
Minivans from Bangkok stop near the historic island; long-distance buses use a terminal east of the river.
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.
- Long-distance buses may drop you on the highway outside town. Check where yours stops.
KEEP GOING
From Ayutthaya, the road continues.
Other ways to reach Ayutthaya
More buses from Udon Thani
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 Udon Thani from Ayutthaya by road?+
About 521 km by road (415 km in a straight line). Distance is an OpenStreetMap routing estimate, not an operator figure.
How long does the bus from Udon Thani to Ayutthaya take?+
We don't publish timetables. As a guide, the drive takes roughly 6 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 Udon Thani?+
It depends on the operator. Main options in Udon Thani include Udon Thani Bus Terminal 1, Udon Thani Bus Terminal 2, and many tourist companies collect from offices or hotels. Your ticket shows the exact boarding point.
Is there a bus back from Ayutthaya to Udon Thani?+
Yes, 12Go also lists services in the opposite direction. See our Ayutthaya to Udon Thani guide.
Where does the bus from Udon Thani arrive in Ayutthaya?+
It depends on the operator. In Ayutthaya, services use Ayutthaya minivan and bus stops. Rent a bicycle or hire a tuk-tuk to see the temples.
How do I get from the bus stop to the centre of Ayutthaya?+
Rent a bicycle or hire a tuk-tuk to see the temples.
What kind of bus runs from Udon Thani to Ayutthaya?+
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 Udon Thani to Ayutthaya 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 Ayutthaya by bus?+
Direct buses from Ayutthaya include Don Mueang Airport (DMK), Bangkok, Nakhon Ratchasima (Korat), Phitsanulok, Sukhothai and more. See all connections on our Ayutthaya 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: Udon Thani to Ayutthaya bus route listing ↗Wikivoyage: Udon Thani (Get in) ↗Wikivoyage: Ayutthaya (Get in) ↗How BusConnects uses sources →