Every year, somewhere between mid-September and the first week of October, the desk fills up with enquiries from shippers and 3PLs who have just worked out that their scheduled freight allocation will not cover the volume their commercial team has committed to the market. By that point the well-managed Q4 capacity has been contracted out of the spot market for months. What is left is priced accordingly, on the assumption that the buyer has no realistic alternative.
The shippers that come through peak without paying that premium do not start the conversation in September. They start it in February, with a planning cadence that is genuinely unglamorous.
Q1: shape the program
January through March is when the program shape gets locked in. The shipper or 3PL puts together a weekly volume forecast against whichever peak actually matters to them: Singles' Day on the China-EU and China-US lanes, Black Friday and Cyber Monday on intra-US and trans-Atlantic, CNY pre-build into the start of the year, and the Christmas tail through December. The charter side turns that into a capacity profile: how many rotations per week per lane, what aircraft type can handle the density, what tonnage to underwrite.
At this point we take options with operators rather than firm contracts. Non-binding holds, sometimes against a small commitment fee, that protect aircraft availability without locking in the customer's budget. Operators are usually open to this early because it gives their own commercial teams a view of where their fleet is heading for the back half of the year.
Q2: convert options into contracts
April through June is when options harden into signed agreements. The shipper's demand picture is firmer because they have Q1 actuals to calibrate against, and the operators are closing out their own peak deployment plans. Rates agreed in this window are usually 20-40% below what the same lane will trade at in October on the spot market, depending on the route and the year. Block-space agreements, dedicated aircraft programs and ACMI deals largely get signed inside this window.
Q3: operational build-out
July through September is the implementation phase. Handler appointment letters at origin and destination, customs broker briefing, screening (RA3/ACC3 for EU-bound flows, TSA-equivalent for US), MAWB stock allocation, slot applications, and contingency aircraft contracted in case the primary goes AOG. Test rotations in late September to confirm that what looks workable on paper actually moves through the airport at the volumes intended.
Screening capacity at high-volume origin airports (HKG, PVG, ICN, DXB on this kind of program) is the piece most shippers under-plan. A program that looks clean in August can stall in October because the screening slot at the origin handler is over-subscribed, or because the RA3 status of an upstream consolidator was not confirmed in time.
Q4: execution
October through January is execution rather than planning. Programs that were contracted in Q2 run to schedule. Programs that were not are chasing spot capacity at premium rates, often on the same airframes that earlier-planned programs locked down in May.
Where it tends to go wrong
The most common mistake is assuming the spot market will be there in October because it usually is. In a quiet macro year, that is roughly true. In a year with CNY manufacturing overhang, a Red Sea diversion driving freight off the water, a fuel spike, or any of the disruption events that recur every couple of years, the October spot market is whatever capacity nobody else thought to book.
The opposite mistake is over-committing in Q2, then carrying empty-leg cost when peak demand prints below forecast. The fix is flex bands built into the contract on day one (typically ±15-20% on weekly rotations against an agreed minimum), not flex negotiated mid-peak when the leverage has gone the other way.
A rough rule of thumb
If your projected peak volume is more than about 20% above your scheduled freight baseline on any given lane, you need a charter program rather than a hopeful eye on the spot market. The further above baseline the peak runs, the earlier in the calendar year the conversation needs to start. Shippers that treat charter as a planned annual capability rather than a panic buy in week 40 tend to come out of Q4 without anyone outside the logistics team noticing how close it was.
