Seattle to Barcelona shipping route.

The shipping route from Seattle, United States to Barcelona, Spain covers 9,102 nautical miles port to port, via Panama Canal. On a globe the two ports sit 8,717 km apart, so the ship sails 1.93 times the straight line distance. On the way the vessel passes Strait of Gibraltar and Panama Canal, so canal transit fees and waiting time at the canal are part of every voyage.

Pure steaming time is 27.1 days at 14 knots. A carrier that slow steams at 12 knots to save fuel needs 31.6 days, and a fast 18 knot string about 21.1. 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 Seattle and Barcelona to plan the full ocean transit time.

The next option is via Suez Canal, 13,829 nautical miles, 4,727 nm longer than the main route. Carriers pick it when Suez Canal is congested or closed.

1,970 nm of the route, 22% of it, lies inside North American ECA, US Caribbean Sea 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 Seattle to Barcelona move with fuel prices, ship capacity and the season. Compare several carriers before booking: the cheapest sailing is often the slowest one. At Barcelona (ESBCN) carriers give about 6 free days before demurrage and detention charges start, so plan the truck or rail pickup before the box lands.

Of the 64 port to port routes from Seattle in this directory, Barcelona is the 44th shortest. Closer destinations include Rotterdam (9,042 nm), Antwerp (9,023 nm) and London Gateway (8,972 nm).