Carrier reliability
Ocean carrier sailing schedules, ranked
Every carrier with a live connector, normalised into one shape and ranked by the departures they actually made.
Across the 17 ocean carriers SchedulesMCP tracks, the most schedule-reliable over the last 90 days is Seaboard Marine, departing on schedule about 100% of the time across 817 observed sailings. The full ranked comparison (sailings, lanes, on-schedule share and schedule drift) is below.
Schedule-reliability = observed departure punctuality over the trailing window (from carriers' own ETD revisions). Data as of Jul 28, 2026.
| Carrier | Sailings | Lanes | On-schedule departures | Behind schedule | p90 drift |
|---|---|---|---|---|---|
| Seaboard Marine SMLU | 1,075 | 197 | 100% | 0% | 168h |
| RCL RCLS | 2,221 | 117 | 87.8% | 12.2% | 96h |
| KMTC KMTC | 1,515 | 99 | 78.7% | 21.3% | 120h |
| CMA CGM CMDU | 13,536 | 857 | 71.8% | 28.2% | 75h |
| COSCO COSU | 10,304 | 548 | 69.5% | 30.5% | 168h |
| Maersk MAEU | 2,905 | 452 | 66.2% | 33.8% | 72h |
| MSC MSCU | 4,365 | 473 | 65.6% | 34.4% | 144h |
| OOCL OOLU | 2,827 | 420 | 60.6% | 39.4% | 168h |
| Yang Ming YMLU | 8,391 | 637 | 59.4% | 40.6% | 96h |
| Hapag-Lloyd HLCU | 3,224 | 452 | 58.4% | 41.6% | 100.8h |
| ONE ONEY | 9,540 | 724 | 58.4% | 41.6% | 96h |
| ZIM ZIMU | 2,792 | 135 | 55.1% | 44.9% | 144h |
| TS Lines TSLL | 416 | 63 | 52.7% | 47.3% | 138.5h |
| HMM HDMU | 2,323 | 386 | 0% | 100% | 48h |
| Swire Shipping SWBC | 24,797 | 2,397 | low sample | ||
| Tarros GETU | 8,576 | 1,504 | low sample | ||
| SITC SITC | 55 | 21 | low sample | ||
This list is exactly the carriers with a live schedule connector today. No thin doorway pages for lines we don't actually cover. It grows as new connectors go live.
Ocean carrier schedules: FAQ
Which ocean carriers does SchedulesMCP cover?
SchedulesMCP has live schedule connectors for the ocean carriers listed on this page, including Maersk, MSC, CMA CGM, COSCO, Hapag-Lloyd, ONE, Yang Ming, OOCL, HMM, ZIM and more. The list is exactly the lines with a working live connector today, not thin doorway pages, and it grows as new connectors go live.
How are the carrier sailing schedules sourced?
Each carrier's forward sailings come from that line's own e-service or published schedule API, then are normalised into one common shape so every carrier reads the same and can be ranked side by side on a lane.
How does SchedulesMCP score a carrier as reliable?
Once a lane has enough tracked port calls, SchedulesMCP compares each actual arrival against the scheduled arrival and reports the observed on-time rate plus median and p90 transit. Thin lanes are shown as low-sample rather than given an invented score, so any number you see is real.
How do I find the most reliable carrier for my route?
Open any carrier page for detail, or go straight to the Compare tool, enter your origin and destination, and see every carrier on that exact lane ranked by observed on-time reliability and transit time before you book.