Day trip from Siem Reap to Ubon Ratchathani
Ubon Ratchathani lies 234 km (146 mi) north-east of Siem Reap, in the same time zone. What the numbers say about getting there.
At 234 km (146 mi) apart, Ubon Ratchathani is a realistic day trip from Siem Reap: about 3 h 49 min each way by road.
Open Ubon Ratchathani in Google Maps
| Siem Reap | Ubon Ratchathani | |
|---|---|---|
| Country | Cambodia | Thailand |
| Population | 139,458 | 122,533 |
| Elevation | 18 m (59 ft) | 125 m (410 ft) |
| Time now | UTC+7 (Asia/Phnom_Penh) | UTC+7 (Asia/Bangkok) |
What changes when you arrive in Ubon Ratchathani
Crossing from Cambodia into Thailand: money changes from the Riels to the Baht (THB); traffic switches to the left; sockets are Euro, NEMA 1-15, NEMA 5-15, Schuko; the dialling code becomes +66; the emergency number is http://www.wikidata.org/entity/Q25648876 / http://www.wikidata.org/entity/Q25648881.
Where to book tours and tickets in Ubon Ratchathani
We take no bookings for these providers and hold no reservation with them. The provider you choose handles payment, confirmation, changes and refunds. How that works.
Staying in Ubon Ratchathani
Live rooms and prices for Ubon Ratchathani are in the search below.
Book a hotel in Ubon Ratchathani
Live rooms and prices from our booking partner, booked and paid for here. Free cancellation is marked where it applies.
Common questions
How far is Ubon Ratchathani from Siem Reap?
234 km (146 mi) in a straight line, north-east of Siem Reap; by road roughly 286 km (178 mi).
How long does it take to get from Siem Reap to Ubon Ratchathani by road?
About 3 h 49 min, estimated from distance and typical speeds. Timetables and traffic decide the real figure.
Is there a time difference between Siem Reap and Ubon Ratchathani?
No, both are on the same offset at the moment.
What currency do I need in Ubon Ratchathani?
The Baht (THB).
Where these facts come from
- GeoNames (CC BY 4.0): population, elevation, time zone, postal codes
- Wikidata (CC0): area, sister cities, visitor numbers, heritage listings, stations and ports
- OurAirports (public domain): airports, runways
- Natural Earth (public domain): map outlines
Data compiled 14 September 2026. Hotel and hostel figures are from our booking partner’s catalogue on that date. Journey times on this page are estimates from distance, not timetables; check the operator before you rely on one.