Houston to Colombo shipping route.

Houston to Colombo is a 10,218 nautical mile shipping route via Suez Canal, heading north from the United States to Sri Lanka. That is 18,924 km of water against 15,904 km as the crow flies. On the way the vessel passes Suez Canal, Bab-el-Mandeb and Strait of Gibraltar, so canal transit fees and waiting time at the canal are part of every voyage.

At sea, the voyage lasts 35.5 days at 12 knots, 30.4 days at 14 knots and 23.7 days at 18 knots. Container transit time on a liner service is longer than the steaming time: ships call at other ports on the rotation, and cargo may transship at a hub. Add terminal time at Houston and Colombo to plan the full ocean transit time.

The shortest route goes through the Red Sea. Since attacks on shipping began there in late 2023, many carriers send ships via Cape of Good Hope instead. That route is 12,032 nautical miles, 1,813 more, and adds about 5.4 days at 14 knots. Longer voyages burn more fuel and tie up more ships, which is why freight rates on Red Sea lanes jumped when the diversions started.

2,746 nm of the route, 27% of it, lies inside North American ECA and Mediterranean Sea ECA. In an emission control area ships must burn fuel with no more than 0.1% sulphur or clean the exhaust with scrubbers. That fuel costs more, and carriers add it to the ocean freight bill as a low sulphur or ECA surcharge.

Container freight rates on Houston to Colombo move with fuel prices, ship capacity and the season. Compare several carriers before booking: the cheapest sailing is often the slowest one. At Colombo (LKCMB) carriers give about 5 free days before demurrage and detention charges start, so plan the truck or rail pickup before the box lands.

Of the 65 port to port routes from Houston in this directory, Colombo is the 52nd shortest. Closer destinations include Qingdao (10,218 nm), Shanghai (10,206 nm) and Incheon (10,173 nm).