Day trip from Phnom Penh to Ô Môn
Ô Môn lies 179 km (111 mi) south-east of Phnom Penh, in the same time zone. What the numbers say about getting there.
At 179 km (111 mi) apart, Ô Môn is a realistic day trip from Phnom Penh: about 2 h 55 min each way by road.
| Phnom Penh | Ô Môn | |
|---|---|---|
| Country | Cambodia | Vietnam |
| Population | 1.6 million | 129,683 |
| Elevation | 20 m (66 ft) | 5 m (16 ft) |
| Time now | UTC+7 (Asia/Phnom_Penh) | UTC+7 (Asia/Ho_Chi_Minh) |
What changes when you arrive in Ô Môn
Crossing from Cambodia into Vietnam: money changes from the Riels to the Dong (VND); sockets are BS 1363, Euro, NEMA 1-15, Schuko; the dialling code becomes +84; the emergency number is http://www.wikidata.org/entity/Q25648804 / http://www.wikidata.org/entity/Q25648805.
Where to book tours and tickets in Ô Môn
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 Ô Môn
Live rooms and prices for Ô Môn are in the search below.
Book a hotel in Ô Môn
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 Ô Môn from Phnom Penh?
179 km (111 mi) in a straight line, south-east of Phnom Penh; by road roughly 218 km (136 mi).
How long does it take to get from Phnom Penh to Ô Môn by road?
About 2 h 55 min, estimated from distance and typical speeds. Timetables and traffic decide the real figure.
Is there a time difference between Phnom Penh and Ô Môn?
No, both are on the same offset at the moment.
What currency do I need in Ô Môn?
The Dong (VND).
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.