Transit time is the number everyone asks for and the number most often misunderstood. The sailing is the shortest part of the schedule. What decides whether your goods arrive when you need them is everything wrapped around it. This guide covers one lane only: ocean freight from China to the United States, by origin region, by US coast and by port of entry.
Every China to USA ocean routing falls into one of four patterns. The pattern sets which ocean the vessel crosses, which canal it uses and which US port it discharges at.
| Origin region | US destination | Routing | Ocean days |
|---|---|---|---|
| South China (Shenzhen, Yantian, Guangzhou) | West Coast: Los Angeles/Long Beach, Oakland, Seattle/Tacoma | Direct transpacific string | Set per sailing by the carrier schedule |
| North China (Qingdao, Tianjin, Dalian) | West Coast: Los Angeles/Long Beach, Oakland, Seattle/Tacoma | Direct transpacific string | Set per sailing by the carrier schedule |
| South and North China | East Coast: New York/New Jersey, Savannah, Charleston | Panama Canal from the Pacific, or Suez Canal from the west | Set per sailing by the carrier schedule |
| South and North China | Gulf: Houston | Panama Canal, then the Gulf of Mexico | Set per sailing by the carrier schedule |
| Shanghai (East China) | Miami | Interworld Freight LCL service | 18 days |
| Shenzhen (South China) | Miami | Interworld Freight LCL service | 35 days |
| Qingdao (North China) | Miami | Interworld Freight LCL service | 35 days |
| Ningbo (East China) | Miami | Interworld Freight LCL service | 37 days |
The four Miami rows come from the Interworld Freight transit table, with rates refreshed 2026-07-21. They are the quoted LCL transit days from each Chinese origin port to Miami. For the other US ports, Maersk, CMA CGM, MSC, COSCO, Hapag-Lloyd, ONE, ZIM and Evergreen each publish a point-to-point schedule per string, and the day count printed on a sailing is the only figure that binds the carrier. This page prints no second-hand day count for those ports.
Carriers publish a schedule per string, and the number of ports each string calls at sets the days. A string that calls at additional ports, or transships, adds days to the port pair. Three variables explain the gap between two sailings on the same lane.
West Coast ports are the shortest ocean route from China, because the vessel crosses the Pacific once and discharges on arrival. Los Angeles and Long Beach are two adjacent ports in San Pedro Bay. Cargo bound for the interior continues by rail or truck, and that inland leg is added to the ocean days.
East Coast and Gulf ports take longer on the water because the vessel must cross from the Pacific to the Atlantic. Two canals make the crossing. The Panama Canal links the two oceans at the isthmus, and the Suez Canal links the Indian Ocean to the Mediterranean for services that sail west. New York/New Jersey, Savannah and Charleston are the main discharge ports for the Northeast and Southeast markets. Houston serves the Gulf and the Texas market. Miami is the Southeast gateway where Interworld Freight operates its own 300,000 sq ft warehouse, and it is the one East Coast port for which this page prints day counts, from the Interworld Freight table above.
The Miami figures show the spread by origin: Shanghai reaches Miami in 18 days and Shenzhen and Qingdao in 35, a difference of 17 days on the same destination. Ningbo, at 37 days, is 19 days behind Shanghai.
Before the vessel. Cargo has to be at the terminal before the cut-off, which each carrier sets per sailing and prints on the booking. For LCL, add the consolidation warehouse cut-off, which falls earlier than the terminal cut-off. CBP must receive the cargo declaration 24 hours before the cargo is laden aboard the vessel at the foreign port (19 CFR 4.7), and the importer must transmit the first ISF elements, including the seller, buyer, importer of record number and consignee, in the same 24 hour window (19 CFR 149.2). A missing filing therefore turns directly into a missed sailing. The ISF guide lists all ten elements.
After arrival. Discharge, availability, customs release, and collection. Entry must be filed within 15 calendar days after landing (19 CFR 142.2). The demurrage clock starts when free time starts, whether or not you are ready.
Consolidated cargo. Deconsolidation at destination adds days at the warehouse before the cargo is available.
| Stage | Time | Source of the figure |
|---|---|---|
| Booking, cut-off, ISF and cargo declaration | Filed 24 hours before loading | 19 CFR 4.7 and 149.2 |
| Ocean, Shanghai to Miami | 18 days | Interworld Freight transit table |
| Ocean, Shenzhen or Qingdao to Miami | 35 days | Interworld Freight transit table |
| Ocean, Ningbo to Miami | 37 days | Interworld Freight transit table |
| Ocean, any origin to another US port | Day count printed on the booked sailing | Carrier point-to-point schedule |
| Entry filing after landing | Within 15 calendar days | 19 CFR 142.2 |
| Merchandise left without entry | General order after 15 days at the place of unlading | 19 CFR 4.37 |
Add the origin pickup, the cut-off wait, discharge, customs release and delivery from your own quotes. Those stages are priced and scheduled per shipment, and each one is listed in the quote.
A West Coast arrival is shorter on the water and adds a domestic leg if the goods are needed in the east. An East Coast or Gulf arrival is longer on the water and lands closer to eastern and southern markets. Decide by where the goods are consumed and by the inland rail or truck schedule, because a delayed inland leg removes the water-time advantage of a West Coast transit.
Cargo that clears in Florida can be consolidated and moved from the Interworld Freight Miami warehouse, which holds a Class 3 CBP bonded status for public storage. For the Caribbean side of the same imports, see China to Caribbean transit times.
Shanghai reaches Miami in 18 days and Shenzhen in 35, a spread of 17 days on the same lane. Ningbo, at 37 days, is 19 days behind Shanghai. Trucking cargo between Shanghai and Shenzhen adds an inland leg and the handover cost. Ship from the port nearest the factory, then compare the next three sailings and the cut-off dates from that port before you decide. The port-by-port comparison is in Chinese ports serving the Caribbean.
| Stage | FCL | LCL |
|---|---|---|
| Origin cut-off | Terminal gate cut-off set by the carrier | Consolidation warehouse cut-off, earlier than the terminal gate |
| Filings | ISF and cargo declaration 24 hours before loading | Same 24 hour filings |
| Ocean | 18 to 37 days to Miami by origin port | 18 to 37 days to Miami by origin port |
| Destination | Container available to the consignee after discharge | Deconsolidation at the warehouse before the cargo is available |
Trucking cargo between Shanghai and Shenzhen adds an inland leg and the handover cost. Ship from the port nearest the factory, then compare the next three sailings and the cut-off dates from that port before you decide. For Miami, the table shows what the choice is worth: 18 days from Shanghai against 35 from Shenzhen or Qingdao.
| Stage | FCL | LCL |
|---|---|---|
| Origin cut-off | Terminal gate cut-off set by the carrier | Consolidation warehouse cut-off, earlier than the terminal gate |
| Filings | ISF and cargo declaration 24 hours before loading | Same 24 hour filings |
| Ocean | Day count of the booked sailing | Day count of the booked sailing; 18 to 37 days to Miami by origin port |
| Destination | Container available to the consignee after discharge | Deconsolidation at the warehouse before the cargo is available |
FCL starts its clock at the terminal gate cut-off. LCL starts it at the consolidation warehouse, which closes earlier, and ends it after deconsolidation. The ocean days are the same for both modes on the same sailing, so the difference sits entirely in the warehouse days at each end. The LCL container shipping guide walks through those warehouse stages.
None of these appears in a quoted transit time.
Under 19 CFR 4.37, merchandise landed without a permit for its release stays at the place of unlading until the fifteenth calendar day after landing. The vessel's agent notifies CBP by day 20 of any merchandise whose entry has not been made. After that, the goods move to a general order warehouse at the consignee's risk and expense (19 CFR 127.1). CBP examines the packages or quantities of merchandise the port director considers necessary for the determination of duties and compliance with the law (19 CFR 151.1), so an exam adds days that no schedule includes.
To Miami, the Interworld Freight table shows 18 days from Shanghai, 35 days from Shenzhen or Qingdao and 37 days from Ningbo, before port and warehouse time. For Los Angeles/Long Beach, Oakland, Seattle/Tacoma, New York/New Jersey, Savannah, Charleston and Houston, the binding figure is the day count on the carrier schedule of the sailing you book.
Shanghai, at 18 days in the Interworld Freight table. Shenzhen and Qingdao run 35 days and Ningbo 37 days, which puts Ningbo 19 days behind Shanghai.
Cut-offs, the 24 hour filings before loading, consolidation, customs clearance and delivery all sit outside the ocean transit. Entry alone is allowed up to 15 calendar days after landing under 19 CFR 142.2.
On the water, yes, because the vessel crosses the Pacific once. East Coast and Gulf services add a canal transit, through Panama or Suez, and a West Coast arrival adds a domestic rail or truck leg for eastern consignees.
A scheduled departure that the carrier cancels to manage capacity. Cargo booked on it is rolled to a later vessel, and the new departure date resets the transit clock.
Yes. The vessel days are the same, but consolidation at origin and deconsolidation at destination add warehouse days at both ends, as explained in the LCL guide above.
The seller, buyer, importer of record number and consignee, together with the manufacturer, ship-to party, country of origin and commodity HTSUS number, are due no later than 24 hours before the cargo is laden at the foreign port (19 CFR 149.2). The container stuffing location and consolidator are due no later than 24 hours before arrival in a US port.
Cargo not covered by a release permit stays at the place of unlading until the fifteenth calendar day after landing, and the vessel's agent reports unentered cargo to CBP within 20 days. It then becomes general order merchandise at the consignee's risk and expense.
Planning a China to USA ocean shipment? Tell us the origin port and the US destination and we will map the schedule end to end.