Ulsan to Osan by bus
Osan lies 270 km (168 mi) north-west of Ulsan, in the same time zone. What the numbers say about getting there.
A coach takes about 5 h 5 min including stops, over roughly 329 km (204 mi) of road.
| Ulsan | Osan | |
|---|---|---|
| Country | South Korea | South Korea |
| Population | 1.1 million | 238,788 |
| Elevation | 10 m (33 ft) | 22 m (72 ft) |
| Time now | UTC+9 (Asia/Seoul) | UTC+9 (Asia/Seoul) |
Where to book buses from Ulsan to Osan
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Staying in Osan
Live rooms and prices for Osan are in the search below.
Book a hotel in Osan
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 Osan from Ulsan?
270 km (168 mi) in a straight line, north-west of Ulsan; by road roughly 329 km (204 mi).
How long does it take to get from Ulsan to Osan by bus?
About 5 h 5 min, estimated from distance and typical speeds. Timetables and traffic decide the real figure.
Is there a time difference between Ulsan and Osan?
No, both are on Asia/Seoul at the moment.
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.