Ocean Port-to-Port Transit Time Calculator (2026)
Answer: Port-to-port ocean transit ranges from 7 days (intra-Asia) to 14 days (Shanghai → LA), 31 days (Ningbo → New York via Panama), and 34+ days (Shenzhen → Hamburg via Suez/Cape).
Ocean transit time at a glance
Port-to-port ocean transit ranges from 7 days (intra-Asia) to 14 days (Shanghai → Los Angeles), 31 days (Ningbo → New York via Panama), and 34+ days (Shenzhen → Hamburg via Suez/Cape). These are sailing days on direct major-alliance services — they exclude export handling, customs, and inland trucking.
How the calculator works
Pick a lane. The tool returns three things:
- Indicative transit days — typical sailing time on direct services from major alliances (2M, Ocean Alliance, THE Alliance).
- Sailing frequency — how often a vessel departs (weekly, multiple weekly).
- Routing notes — transshipment exposure, congestion risk, and blank-sailing notes for this lane.
This is a planning estimator, not a live schedule engine. Use it to anchor inventory cutoffs and replenishment cycles, then confirm the actual vessel ETA with your carrier or forwarder before committing the booking.
Worked example: planning FBA replenishment
You sell on Amazon US and need 4,000 units in inventory by July 15, 2026 at the FBA fulfillment center in Ontario, CA. Your supplier ships ex-Shanghai.
| Step | Days | Cumulative |
|---|---|---|
| Cargo ready, gate-in at Shanghai | 0 | Day 0 |
| Vessel departure (CY cut-off + sailing day) | +3 | Day 3 |
| Port-to-port sailing to Long Beach | +14 | Day 17 |
| Discharge, customs, terminal release | +5 | Day 22 |
| Inland trucking Long Beach → Ontario FBA | +2 | Day 24 |
| FBA receiving lag at the FC | +7 | Day 31 |
To hit July 15 in stock, cargo must be ready by June 14, 2026 — a full 31 days earlier. If you ship East Coast (Ningbo → New York), shift the cutoff back another 17 days.
Lane comparison (May 2026 typical schedules)
| Origin → Destination | Sailing days | Routing | Frequency |
|---|---|---|---|
| Shanghai → Los Angeles | 14 | Direct Pacific | Weekly, multiple carriers |
| Ningbo → New York | 31 | Panama Canal | Weekly |
| Shenzhen → Hamburg | 34 | Suez / Cape rotation | Weekly |
| Shanghai → Singapore | 7 | Direct intra-Asia | Multiple weekly |
Why real shipments often take longer
- Blank sailings. Carriers cancel scheduled vessels in slack seasons. Your container rolls to next week’s vessel — +7 days minimum.
- Port congestion. LA/Long Beach saw 5–10 day berth queues in the 2021–2022 peak; Hamburg and Rotterdam still see 2–4 day delays in 2026.
- Transshipment. Indirect services route through Singapore, Busan, or Algeciras. Each transshipment adds 3–7 days of dwell.
- Customs exam. Random CBP exams on US imports delay release by 5–14 days. Manifest-hold exams are faster (1–3 days).
- Weather. Typhoon season (June–October Pacific, Sept–Nov Atlantic) can add 1–3 days per affected sailing.
FAQs
Does port-to-port transit include customs clearance? No. It only covers vessel sailing time between ports. Add export handling, customs, terminal release, and inland trucking for door-to-door planning.
Why can East Coast transit be twice as long as West Coast? China-US East Coast services route through the Panama Canal, Suez, or Cape of Good Hope, adding distance and canal/rotation time versus direct Pacific West Coast sailings.
How much buffer should I add for Amazon FBA? For FBA replenishment, add at least 14 days beyond port-to-port sailing for customs, drayage, appointment timing, and FBA receiving lag.
What is a blank sailing? A blank sailing is a canceled scheduled vessel. Cargo rolls to a later sailing, often adding one week on weekly services.
Should I use this for booking a vessel? No. Use it for planning. For booking, confirm exact ETD, ETA, vessel name, routing, and cutoff time with the carrier or forwarder.
Dated facts (as of May 2026)
- Red Sea routing premium still in effect — most China–Europe services route via Cape of Good Hope, adding 7–14 days vs. pre-2024 Suez schedules.
- Panama Canal drought restrictions eased as of Q1 2026; transit slot wait times back to normal 1–2 days.
- Average Shanghai → LA on-time performance: ~72% for major alliances (industry standard “on-time” = ±1 day of schedule).
- Typical FBA replenishment cycle for cross-border sellers: 35 days West Coast, 50 days East Coast, door-to-FC including buffer.
When to use this vs. live carrier schedules
| Use this calculator | Use the carrier schedule |
|---|---|
| Early planning, mode comparison, replenishment math | Booking decisions, vessel selection, cutoff timing |
| Estimating customer ETA before quote is firm | Tracking an active shipment with bill-of-lading number |
| Comparing lane options for new sourcing | Checking real-time port congestion on a known route |
For booking-grade transit times, request a live quote — we will return scheduled vessel name, ETD, ETA, and routing details for your exact shipment.
Frequently asked questions
- How long does ocean shipping from China to the US take in 2026?
- Port-to-port sailing time is about 14 days Shanghai/Ningbo/Shenzhen → Los Angeles/Long Beach on direct West Coast services. East Coast via Panama Canal runs 28–32 days; East Coast via Suez or Cape of Good Hope routing runs 35–42 days. Add 5–10 days for door-to-door including customs and inland trucking.
- Why is Ningbo → New York 31 days but Shanghai → LA only 14?
- New York is on the US East Coast. Most services route through the Panama Canal, which adds ~10 days vs. a direct Pacific crossing. Some carriers also route via the Suez Canal (longer but bypasses Panama congestion). Both are roughly 2× the distance and time of a transpacific West Coast sailing.
- Does this include customs clearance and inland delivery?
- No. This is **port-to-port sailing time only** — the days between vessel departure at origin and vessel arrival at destination. Real door-to-door adds: 1–3 days export handling and gate-in, 3–7 days customs and terminal release at destination, and 1–10 days inland trucking depending on lane.
- How accurate are these transit numbers?
- They are typical schedules from major alliances (2M, Ocean Alliance, THE Alliance) for direct services. Actual transit can be ±3 days due to weather, port congestion, or blank sailings. For booking decisions, confirm the exact vessel schedule with the carrier or forwarder.
- What is a "blank sailing" and how does it affect transit?
- A blank sailing is when a carrier cancels a scheduled vessel. Your cargo gets rolled to the next sailing — typically 7 days later on weekly services. In peak slack seasons (e.g., post-CNY 2026), carriers blank 10–20% of sailings to manage capacity, which can extend your effective transit by 1–2 weeks.
- When should I add safety stock for ocean transit?
- For Amazon FBA replenishment, plan inventory cover for **port-to-port transit + 14 days buffer**: 28 days for West Coast, 45 days for East Coast, 50 days for Europe. The buffer absorbs customs delays, FBA receiving lag (5–10 days at the FC), and blank-sailing risk.
- Are intra-Asia lanes really only a week?
- Yes — Shanghai → Singapore is ~7 days on weekly direct services, often with multiple sailings per week from different carriers. Shanghai → Tokyo is 3–4 days. Shenzhen → Hong Kong is barge-level, under 24 hours. Short-haul Asia lanes have the densest frequency in global shipping.