I. Port Overview

The Port of Seattle-Tacoma is jointly operated by the Port of Seattle and the Port of Tacoma, forming the Northwest Seaport Alliance (NWSA). It is the third-largest container port complex on the U.S. West Coast (after Los Angeles/Long Beach). Located in Washington State, USA, on Puget Sound of the Pacific Ocean, it is a major trade gateway for the Pacific Northwest and one of the closest U.S. mainland ports to Asia.

The Port of Seattle-Tacoma serves markets in Washington, Oregon, Idaho, and Alaska, with rail connections to the U.S. Midwest and Western Canada. It is a key hub for importing large Boeing aircraft components and transshipping goods to/from Alaska.

II. Port Size and Facilities

The Northwest Seaport Alliance operates over 10 container terminals with a water depth of approximately 13–15 meters and an annual container throughput of about 3.5 million TEUs. Terminals are managed by operators such as SSA Marine and APM Terminals. The port is connected to major markets in the Eastern U.S. and Midwest via two Class I railroads—BNSF and Union Pacific—with well-established intermodal infrastructure.

III. Main Shipping Routes from China

Port of Origin Estimated Transit Time Common Carriers
Shanghai 12–15 days COSCO, MSC, MAERSK
Shenzhen 13–16 days ONE, CMA CGM
Ningbo 12–15 days COSCO, MSC

IV. Key Points on U.S.-China Trade and Logistics

Major imports from China: electronic components, machinery, consumer goods, and agricultural products. Washington State has close trade ties with China—it has long ranked among the top U.S. states in exports to China (Boeing aircraft, agricultural products), while imports are mainly consumer goods and electromechanical products.

Bofeng Logistics Insight: Advantages of the Port of Seattle-Tacoma over Los Angeles/Long Beach: ① Significantly lower congestion (typical wait time 1–2 days vs. 3–7 days during LA/LB peak season); ② Shortest shipping route from Asia; ③ Ideal for cargo destined for the U.S. Pacific Northwest, Alaska, or for rail transport to the Midwest/North-Central U.S. Recommended as the preferred port when destinations are in U.S. Northwest states (Washington, Oregon, Montana, Idaho).

V. Shipping Considerations

Frequently Asked Questions

Q: How to choose between Seattle-Tacoma and Los Angeles?
A: For destinations in Washington/Oregon/Idaho/Montana → choose Seattle-Tacoma (shorter inland transport); for destinations in California, the U.S. Southwest, or Southeast → choose Los Angeles. Rail connections between the two ports are smooth, allowing flexible cargo routing.

Q: Is the port called Seattle or Tacoma?
A: In 2015, the two ports merged to form the Northwest Seaport Alliance (NWSA), collectively referred to as the Port of Seattle-Tacoma. When booking, either port's terminals can be used as the destination. SEA (Seattle) and TIW (Tacoma) have different UN/LOCODEs, but in practice they are treated as a single port complex.

VI. Bofeng Logistics Services

  • Full Container Load (FCL): 20GP, 40GP, 40HQ
  • Less than Container Load (LCL): Regular consolidation from Guangzhou/Shenzhen to Seattle
  • Customs Clearance: China export + U.S. import clearance consulting
  • U.S. Inland Intermodal: Rail distribution from Seattle to Spokane/Portland/Minneapolis/Chicago

📍 Contact us for real-time rates.

Related Port: Port of Vancouver (approx. 250 km apart, linked as northern West Coast port complex in U.S./Canada)