Phnom Penh to Lạng Sơn by bus
Lạng Sơn lies 1,161 km (721 mi) north of Phnom Penh, in the same time zone. What the numbers say about getting there.
A coach takes about 21 h 5 min including stops, over roughly 1,416 km (880 mi) of road.
| Phnom Penh | Lạng Sơn | |
|---|---|---|
| Country | Cambodia | Vietnam |
| Population | 1.6 million | 200,108 |
| Elevation | 20 m (66 ft) | 265 m (869 ft) |
| Time now | UTC+7 (Asia/Phnom_Penh) | UTC+7 (Asia/Bangkok) |
What changes when you arrive in Lạng Sơn
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 buses from Phnom Penh to Lạng Sơn
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 Lạng Sơn
Live rooms and prices for Lạng Sơn are in the search below.
Book a hotel in Lạng Sơn
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 Lạng Sơn from Phnom Penh?
1,161 km (721 mi) in a straight line, north of Phnom Penh; by road roughly 1,416 km (880 mi).
How long does it take to get from Phnom Penh to Lạng Sơn by bus?
About 21 h 5 min, estimated from distance and typical speeds. Timetables and traffic decide the real figure.
Is there a time difference between Phnom Penh and Lạng Sơn?
No, both are on the same offset at the moment.
What currency do I need in Lạng Sơn?
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.