Container Ship Transit: Shanghai to San Francisco ~52 Days

The great-circle distance is ~12,500 nautical miles. At a typical service speed of 20 knots (23 mph), a container vessel takes approximately 52 days port-to-port.

Actual transit varies due to:

• Weather (typhoons, North Pacific storms)
• Route (great circle vs. rhumb line; Panama Canal not used for this route)
• Port congestion at Shanghai (Yangshan) or Oakland/LA/LB
• Bunker fuel optimization (slow steaming at 16–18 knots extends to 60+ days)
• Schedule reliability (alliance service loops)

Most Asia–USWC services run 21–28 day cycles; Shanghai–SF direct is typically 18–22 days at full speed, but scheduled transit including port dwell is 4–6 weeks.