Two carriers, the same trade lane, the same stretch of 2026. One landed 78.2% of its vessels on time. The other managed 38.0%. That is a 40.2-point gap on an identical route, and the forwarder who booked the cheaper of the two just quoted a client a transit time with a two-in-five chance of holding.
Sea-Intelligence put those numbers in print. In its May 2026 Global Liner Performance report, Maersk was the most reliable of the top-13 carriers at 78.2%, with Hapag-Lloyd at 76.0% and MSC at 71.6% close behind. Wan Hai sat at the bottom at 38.0%. Same ocean, same ports, same weeks. The difference was the carrier, and the difference was enormous.
Here is the part that should worry anyone quoting transit times right now. May was the good month. Global schedule reliability reached 64.7% in May, the highest figure of the year. Then June arrived. On-time performance fell to 56.6%, down 3.7 points in a single month and 2.3 points below June 2025, the first significant decline of 2026 after three straight months of improvement. Vessels that arrived late were an average of 3.8 days behind. On the Asia to North Europe trade, only 52.9% of vessels made their window at all.
So the field is both wide and moving. A forwarder is not choosing between reliable and slightly less reliable. On some lanes, half the sailings miss, and the carrier you happened to book decides whether your client sits in the reliable third or the 38% cellar.
What does a missed transit time actually cost the forwarder?
Not the carrier. The carrier already collected the freight. The cost lands on you.
A forwarder quotes a 30-day door-to-door based on a carrier’s proforma schedule. The client builds a distribution-center receiving slot, a retail on-shelf date, and an inland trucking appointment on top of that 30-day number. Now the vessel books a carrier running at 38.0% reliability and arrives, on average, 3.8 days late. The DC slot is gone. The truck was booked and now reschedules at a premium. Detention and demurrage clocks start on boxes that cannot move, and those charges accrue per container per day until the backlog clears. Somewhere downstream a promotion misses its date and a buyer starts asking who to call next time.
Every one of those recovery costs is absorbed inside your margin or charged back to you, and the client remembers exactly whose ETA it was. Run the math across a book of business and a single unreliable carrier on a core lane can quietly erase the margin on the very volume you fought hardest to win. Reliability is not a carrier problem you observe from the sidelines. It is a forwarder liability you inherit the moment you put a number in front of a client.
Client retention is where it compounds. A shipper will forgive a delay it was warned about. It rarely forgives being blindsided, and the second surprise is usually the last. Winning a mid-market account can take a year of pitches and a rate concession you would rather not have made. Losing it takes one container that lands four days late with no heads-up, on a lane you booked to a carrier you never checked.
“We optimize by rate, and the schedule sorts itself out”
This is the belief the market is punishing right now. Rate and reliability are not the same axis, and in a peak market they frequently move against each other. Drewry’s World Container Index slipped 2% to $4,547 per 40-foot container on 16 July as carriers’ announced increases, some reaching $7,900 to $8,500, failed to hold. Soft spot rates are tempting. But the cheapest available slot in a stressed market often belongs to the carrier with the weakest schedule discipline, because that is precisely why the space is going cheap. Optimizing on rate alone is not neutral on reliability. It actively selects for the bottom of the table, and it does so at the exact moment the whole field is deteriorating.
“Reliability is an industry condition, there is nothing to choose”
The 40.2-point spread is the entire rebuttal. If reliability were a fixed industry weather system, every carrier would cluster around the 56.6% average. They do not. One landed 78.2% and another 38.0% in the same market. That is a choice sitting on the desk every time a booking is made, and treating it as unchoosable is how a forwarder converts a controllable variable into a client-facing surprise.
The problem was never that the data does not exist. It is that it lives in a dozen places at once: individual carrier portals, EDI feeds, spreadsheets, and the memory of whichever operator booked the lane last quarter. By the time a forwarder stitches together an honest picture of who is actually performing on a given lane this month, the booking is already made and the vessel is already sailing.
How FrateZone closes the gap
This is the operational problem FrateZone was built for. FrateZone consolidates milestone data across 200+ ocean carriers onto a single operational desk, so carrier performance on your actual lanes becomes one view instead of twelve. When a vessel slips against its schedule, the carrier-driven exception flag surfaces on that desk, so your team can reset the client before the client resets you. You are not waiting for a “where is my box” email to discover a sailing is running four days behind.
That turns carrier selection from a rate reflex back into an evidence decision. You can see which carriers are holding their schedules on the lanes you actually run, and you can defend a higher-priced booking to a cost-focused client with the reliability record to back it. The full FrateZone platform keeps the milestone history, so the pattern is visible before you book rather than after you have explained the delay. For how forwarders and 3PLs fold this into a booking workflow, see the solutions overview.
To be precise about what the desk does: it surfaces carrier-driven exceptions as they land on the consolidated view. It is not a proactive alerting engine and it does not fire user-configured threshold alerts. The value is simpler and harder to replicate. Fragmented milestone data becomes one version of the truth, fast enough to act on while the booking still matters.
None of this asks the forwarder to babysit a dashboard. The point of consolidation is that the exception finds the operator rather than the operator hunting for it, and early enough that the client conversation becomes a heads-up instead of an apology. That is the difference between a forwarder who sells space and one who sells arrival.
A five-point reliability check before you book
- Pull the carrier’s on-time performance for the specific lane, not its global average. A carrier can sit mid-table overall and still be the worst option on your route.
- Read the average delay, not just the on-time percentage. A 3.8-day late arrival reshapes every downstream appointment your client has already made.
- Weigh reliability against rate as one decision. The cheapest slot in a peak market is often the least reliable one, and for a reason.
- Watch the trend, not a single month. A field that ran 64.7% in May and 56.6% in June is deteriorating, and a booking made on last quarter’s picture is already stale.
- Set up exception visibility before the vessel sails, so a slip reaches your client from you, with a plan, rather than reaching you from your client, as a complaint.
The forwarders who hold their accounts through the rest of 2026 will not be the ones with the lowest quoted rate. They will be the ones who stopped treating reliability as the carrier’s business and started treating it as the product they sell.
The time lost waiting for containers costs far more than the freight itself. FrateZone enables real-time freight predictability across 200+ ocean carriers, turning your operational visibility into strategic program control. Learn more at FrateZone pricing.