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Why a single number is the wrong unit
Interworld Freight moves consolidated China cargo to the Caribbean through Miami, so what a forwarder calls "transit time" is the sum of these legs:
| Leg | Duration | Applies to | Variance driver |
|---|---|---|---|
| Origin consolidation | 3 to 7 days | LCL only | How fast the container fills; your booking date against the cutoff |
| Chinese port to Miami | Shanghai 18 days, Qingdao 35, Shenzhen 35, Ningbo 37 | All | Origin port |
| Miami to destination | 1 to 7 days across the destinations below | All | Distance from Miami; the weekly arrival day of each destination |
| Deconsolidation | 2 to 5 days | LCL only | CFS capacity at destination |
| Customs clearance | 1 to 5 days | All | Whether paperwork was ready before arrival |
An FCL shipment skips consolidation and deconsolidation, which removes 5 to 12 days from the chain. That is a real part of the FCL case and it is frequently left out of mode comparisons, which is covered in LCL vs FCL for Caribbean imports.
Where the variance concentrates
The origin port is the largest single input. Shanghai reaches Miami in 18 days and Ningbo in 37, a 19-day gap that carries through to every destination. Qingdao and Shenzhen both take 35 days.
The Miami connection is the step function. Each destination has a fixed arrival day in our schedule: Monday for Antigua and Dominica, Wednesday for Barbados, Thursday for Bimini. Cargo that misses the connection waits for the next arrival day. The routing is covered in Caribbean transshipment hubs.
The cutoff comes first. On LCL, a booking made at the cutoff rather than before it misses the sailing, and the missed sailing carries the cargo past its Miami connection as well.
Customs clearance takes 1 to 5 days when the file is ready. The importer registration must exist and the entry must be prepared before arrival. Clearance that runs to three weeks traces to a tax ID applied for after the vessel sailed, not to the customs authority. The registration requirements per territory are in Caribbean import duties and taxes.
Transit by destination
What sets the ranges. Each total is the Chinese port of loading plus the Miami to island leg: in Interworld Freight's LCL tariff of July 21, 2026, Shanghai reaches Miami in 18 days, Qingdao and Shenzhen in 35 and Ningbo in 37. The Miami legs run from 1 day to the Bahamas to 9 days to Guyana. The totals are port-to-port sailing days. They exclude the cargo cut-off at the origin warehouse, the wait in Miami for the next sailing and customs clearance on arrival.
Why some lanes are marked estimated. For Jamaica, Puerto Rico, the Dominican Republic, Haiti and the Cayman Islands, the rate sheet for the Miami leg does not include a transit time. Interworld Freight estimates it from its own published legs to neighboring islands (Turks and Caicos 2 to 3 days, Antigua and Saint Kitts 4, Barbados 6, Guyana 9) and confirms the exact day on the booking.
Totals are the Chinese port to Miami leg plus the Miami to destination leg, from Interworld Freight transit data (rates refreshed 2026-07-21). Lanes marked "estimated" carry an estimated Miami leg. Panama, Trinidad and Tobago, Curaçao, Aruba and the US Virgin Islands have no fixed Miami leg on file, so the Miami to destination leg is quoted per sailing. Ranges for the Bahamas, Turks and Caicos, the British Virgin Islands, Saint Kitts and Nevis and Saint Lucia span their individual ports.
| Destination | Miami to destination | From Shanghai | From Qingdao or Shenzhen | From Ningbo |
|---|---|---|---|---|
| Panama | Quoted per sailing | 18 days to Miami, then quoted | 35 days to Miami, then quoted | 37 days to Miami, then quoted |
| Jamaica (estimated) | 4 days | 22 days | 39 days | 41 days |
| Dominican Republic (estimated) | 3 days | 21 days | 38 days | 40 days |
| Trinidad and Tobago | Quoted per sailing | 18 days to Miami, then quoted | 35 days to Miami, then quoted | 37 days to Miami, then quoted |
| Puerto Rico (estimated) | 3 days | 21 days | 38 days | 40 days |
| Bahamas | 1 to 2 days | 19 to 20 days | 36 to 37 days | 38 to 39 days |
| Haiti (estimated) | 4 days | 22 days | 39 days | 41 days |
| Curaçao | Quoted per sailing | 18 days to Miami, then quoted | 35 days to Miami, then quoted | 37 days to Miami, then quoted |
| Aruba | Quoted per sailing | 18 days to Miami, then quoted | 35 days to Miami, then quoted | 37 days to Miami, then quoted |
| Barbados | 6 days | 24 days | 41 days | 43 days |
| Cayman Islands (estimated) | 5 days | 23 days | 40 days | 42 days |
| Turks and Caicos | 2 to 3 days | 20 to 21 days | 37 to 38 days | 39 to 40 days |
| Sint Maarten | 3 days | 21 days | 38 days | 40 days |
| US Virgin Islands | Quoted per sailing | 18 days to Miami, then quoted | 35 days to Miami, then quoted | 37 days to Miami, then quoted |
| British Virgin Islands | 4 to 5 days | 22 to 23 days | 39 to 40 days | 41 to 42 days |
| Antigua and Barbuda | 4 days | 22 days | 39 days | 41 days |
| Saint Kitts and Nevis | 4 to 5 days | 22 to 23 days | 39 to 40 days | 41 to 42 days |
| Saint Lucia | 5 to 6 days | 23 to 24 days | 40 to 41 days | 42 to 43 days |
| Saint Vincent and the Grenadines | 5 days | 23 days | 40 days | 42 days |
| Grenada | 7 days | 25 days | 42 days | 44 days |
| Dominica | 4 days | 22 days | 39 days | 41 days |
The pattern is readable: the shorter the Miami leg, the shorter the total. The Bahamas, 1 to 2 days from Miami, sit at 19 to 20 days from Shanghai, while Grenada, 7 days from Miami, sits at 25 days.
Air freight, for comparison
Air runs 3 to 7 days door to door and removes the Miami connection entirely. The cases where it is the right answer are narrow and specific: samples before committing to a container, spare parts holding up a production line or a vehicle, launch stock for a product with a dated marketing campaign, and anything whose value per kilogram makes the freight cost immaterial.
The mistake to avoid is using air as an emergency patch for a schedule that ocean freight could have met if the booking had been made a week earlier. Air freight to the Caribbean covers the service; the point here is that on this lane most air freight is bought to fix a planning failure rather than to meet a genuine requirement.
Shortening the transit
Four levers, in order of how much they move the number.
- Pick the right origin port. Shanghai reaches Miami in 18 days, Ningbo in 37. A supplier in Zhejiang shipping out of Ningbo when Shanghai is available adds 19 days. Covered in Chinese ports serving the Caribbean.
- Book the whole movement with one party. A connection where the mainline and the Miami leg are separate bookings has no owner, and that is where delays start.
- Book ahead of the cutoff. On LCL a booking at the cutoff misses the sailing, and booking early costs nothing.
- Have clearance ready before arrival. Registration, entry document and broker instructed before the vessel berths turns clearance from a variable into a constant.
For importers serving several islands, there is a fifth option that changes the problem rather than optimising it: stage one full container in a free zone at the hub and feed the islands from there. The China leg happens once and restocking from the hub takes days. See Colón Free Zone re-export.
The full lane structure is in shipping from China to the Caribbean, and Interworld Freight books the China leg and the Miami leg as a single movement through its LCL and FCL services so the connection has an owner.
Frequently Asked Questions
How long does shipping from China to the Caribbean take?
Consolidated cargo takes 19 to 44 days from the Chinese port to the destination in our transit data. The total is the China port to Miami leg (Shanghai 18 days, Qingdao and Shenzhen 35, Ningbo 37) plus 1 to 7 days from Miami to the island, with 3 to 7 days of origin consolidation for LCL, 2 to 5 days of deconsolidation and 1 to 5 days of customs clearance around it. Air freight takes 3 to 7 days.
Why is the transit time range so wide?
Because the origin port moves the total by up to 19 days and the Miami leg moves it by up to 6 more. Shanghai to the Bahamas totals 19 to 20 days; Ningbo to Grenada totals 44. Those two figures are the ends of the range in the table above.
Which Caribbean destinations have the fastest transit from China?
The Bahamas, at 19 to 20 days from Shanghai, followed by Turks and Caicos at 20 to 21 days and Puerto Rico, Sint Maarten and the Dominican Republic at 21 to 22 days (Puerto Rico and the Dominican Republic are estimated lanes). Grenada is the slowest on the list at 25 days from Shanghai, because the Miami leg alone takes 7 days.
Is FCL faster than LCL from China to the Caribbean?
Yes. FCL skips origin consolidation, which takes 3 to 7 days, and destination deconsolidation, which takes 2 to 5. A sealed container also moves through the Miami connection without being reworked, and it presents a simpler customs entry at destination.
How can I make my shipment arrive faster?
Ship from Shanghai when the supplier can reach it, since it is 17 to 19 days faster to Miami than Qingdao, Shenzhen or Ningbo. Book the China leg and the Miami leg as a single movement so the connection has an owner. Book ahead of the LCL cutoff. Have your importer registration and entry document ready before the vessel arrives.
How long does customs clearance take in the Caribbean?
One to five days, provided the importer registration exists and the entry is prepared before arrival. Clearances that take weeks trace to a tax identification number applied for after the vessel sailed, or to a broker waiting on documents.
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