Sea distance from Houston to Busan
The sea route from Houston (United States) to Busan (South Korea) is about 9,893 nautical miles, which is 18,322 km or 11,385 statute miles. The route transits Panama Canal. That is about 60% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.
Voyage time by boat speed
Time underway is distance divided by speed. These are continuous-passage figures with no stops or weather margin.
| Boat and speed | Time underway |
|---|---|
| Sailboat, conservative (5 kn) | 82d 11h |
| Sailboat, average (6 kn) | 68d 17h |
| Displacement trawler (8 kn) | 51d 13h |
| Fast trawler (10 kn) | 41d 5h |
| Planing motor yacht (15 kn) | 27d 12h |
| Fast motor yacht (20 kn) | 20d 15h |
Planning estimate, not navigation
This distance is computed over the open Eurostat shipping-lane network. It is a realistic passage length for planning, but your sailed distance will differ with weather routing, currents, draft, and the exact berths you leave from and arrive at. Always verify against official charts.
Building with these numbers? The sea route & distance API returns this figure, voyage time, and route geometry for any port pair in one GET request.
Plan this passage properly
Open Houston to Busan in the Marine OS route planner: it suggests the sea route, then you drag waypoints, set your speed and fuel burn, and check weather and tides along the way.
Open this route in the plannerFrequently asked questions
How far is Busan from Houston by sea?
About 9,893 nautical miles (18,322 km / 11,385 statute miles) along the practical sea route, which transits Panama Canal. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from Houston to Busan?
At a typical sailing average of 6 knots it is about 68d 17h underway. A 10-knot trawler needs about 41d 5h, and a 20-knot motor yacht about 20d 15h. Add margin for weather, currents, and stops.
How is this distance calculated?
It is computed over the open Eurostat global shipping-lane network, the same kind of network freight routing tools use. It is a realistic planning estimate, not a navigation product: your sailed distance will vary with weather routing, draft, and the exact harbors you use.
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