Seoul, South Korea → Osaka, Japan
448 nautical miles · Direction: southeast
The straight-line distance from Seoul to Osaka is 829 km (515 miles). Osaka lies roughly east-southeast of Seoul; the initial great-circle bearing is 110° (ESE). It is an international route from South Korea to Japan.
Seoul (Capital Area, South Korea) sits at 37.5665°N, 126.9780°E; Osaka (Kansai, Japan) is at 34.6937°N, 135.5023°E. The initial great-circle bearing is 110° (ESE); on a great circle the heading changes along the way.
| Mode | Figure | Basis |
|---|---|---|
| ✈️ Flight | ~1h 32min | Estimate: 800 km/h + 30 min taxi. Not a schedule; total trip time is longer. |
| 🚗 Road | No estimate | No road connection |
There is no continuous road connection between Seoul and Osaka — the two cities sit on separate landmasses, so the journey requires air or sea transport.
The geographic halfway point of the great-circle path between Seoul and Osaka lies at approximately 36.2057°N, 131.3183°E — the position that is an equal 415 km from each city along that path. It is a geometric midpoint, not a halfway point by road.
Seoul (Asia/Seoul) and Osaka (Asia/Tokyo) use different time-zone IDs but keep the same clock time all year under current rules.
Seoul uses the South Korean Won (KRW), while Osaka uses the Japanese Yen (JPY). The primary language changes from Korean in Seoul to Japanese in Osaka.
All routes in South Korea · All routes in Japan
All distances from Seoul · All distances from Osaka
The straight-line distance from Seoul to Osaka is approximately 829 km (515 miles, 448 nautical miles).
Osaka lies roughly east-southeast of Seoul; the initial great-circle bearing is 110° (ESE).
Estimated flight time is about 1h 32min (great-circle distance at 800 km/h plus 30 min for taxi, take-off and landing). It is not an airline schedule; total airport-to-airport trip time is longer.
There is no continuous road connection between Seoul and Osaka — the two cities sit on separate landmasses, so the journey requires air or sea transport.
Seoul (Asia/Seoul) and Osaka (Asia/Tokyo) use different time-zone IDs but keep the same clock time all year under current rules.
Straight-line distance uses the great-circle (Haversine) method. Flight and road figures, where shown, are estimates rather than schedules or live routing. How SnapDistance calculates distances