Seattle to Shanghai: ocean shipping schedules
Ocean shipping from Seattle to Shanghai takes about 31 days in transit (7 carriers sail this lane, incl. CMA CGM, COSCO, SM Line), based on 33 tracked sailings. The fastest observed carrier is SM Line at 15 days. Compare all carriers and upcoming departures below.
Transpacific lane · schedule data as of Jul 28, 2026.
How long does shipping from Seattle to Shanghai take?
Shipping a container from Seattle to Shanghai takes about 31 days port to port on a typical sailing. The fastest carrier we track, SM Line, does it in about 15 days. Transit varies by carrier and service loop. Compare each line below.
| Carrier | Transit time | Sailings |
|---|---|---|
| SM Line | 15 days | 5 |
| CMA CGM | 30 days | 9 |
| COSCO | 31 days | 8 |
| HDMU | 36 days | 4 |
| ONE | 36 days | 4 |
| MSC | 44 days | 2 |
| Hapag-Lloyd | 64 days | 1 |
- Fastest carrier: SM Line, about 15 days port to port.
- Most sailings: CMA CGM, 9 tracked sailings across 1 services.
Carriers on Seattle → Shanghai
Every line running this lane, ranked by how many sailings we track, with each carrier's service count and median port-to-port transit.
| Carrier | Sailings | Services | Median transit |
|---|---|---|---|
| CMA CGM | 9 | 1 | 30 days |
| COSCO | 8 | 1 | 31 days |
| SM Line | 5 | 1 | 15 days |
| HDMU | 4 | 1 | 36 days |
| ONE | 4 | 1 | 36 days |
| MSC | 2 | 1 | 44 days |
| Hapag-Lloyd | 1 | 0 | 64 days |
Transit by carrier
Upcoming departures
The next confirmed sailings on this lane: vessel, carrier, service loop, and dates.
| Vessel | Carrier | Service | Departs | Arrives | Transit |
|---|---|---|---|---|---|
| CMA CGM ARKANSAS | COSCO | MPNW | Aug 4, 2026 | Sep 4, 2026 | 31d |
| CMA CGM ARKANSAS | CMA CGM | CPNW | Aug 5, 2026 | Sep 3, 2026 | 30d |
| CMA CGM ARKANSAS | CMA CGM | CPNW | Aug 6, 2026 | Sep 3, 2026 | 29d |
| CMA CGM BYBLOS | CMA CGM | CPNW | Aug 19, 2026 | Sep 17, 2026 | 30d |
| CYPRESS | CMA CGM | CPNW | Jul 14, 2026 | Aug 13, 2026 | 30d |
| CYPRESS | CMA CGM | CPNW | Jul 15, 2026 | Aug 13, 2026 | 30d |
| LOTUS A | COSCO | MPNW | Jul 22, 2026 | Aug 21, 2026 | 30d |
| MH PERSEUS | COSCO | MPNW | Jul 28, 2026 | Aug 28, 2026 | 31d |
| MH PERSEUS | CMA CGM | CPNW | Jul 29, 2026 | Aug 27, 2026 | 30d |
| ONE MILLAU | ONE | FP2 | Aug 5, 2026 | Sep 3, 2026 | 35d |
Seattle to Shanghai: FAQ
How long does shipping from Seattle to Shanghai take?
Typical ocean transit on the Seattle–Shanghai lane is around 31 days port to port, though it varies by carrier and service loop. See the carrier table above for each line's median.
Which carriers sail Seattle to Shanghai?
7 carriers run this lane, including CMA CGM, COSCO, SM Line and 4 more.
How often do ships depart Seattle to Shanghai?
Across the schedule window we track about 33 sailings on this lane from 7 carriers, so departures run multiple times per week.