The line is down. Here is how the part gets there.
Downtime is a per-hour number; the mission is beating it. One call compares hot-shot ground, next flight out, courier, and dedicated charter against your restart time — and launches the one that wins.
OnFly Air moves the parts, tooling, and people that restart stopped production lines — supplier dock to receiving door, domestic and cross-border. We quote every realistic mode against your restart deadline and recommend by total risk-adjusted time, not by what pays us most. Average charter wheels-up: under two hours from go-ahead. The desk answers 24/7/365.
Do the downtime math first
Every line has a number — contribution margin lost, labor idled, penalties accruing — per hour stopped. Multiply it by the hours each shipping option leaves the line dark, add the freight cost, and the “expensive” option is frequently the cheap one. A line losing $40,000 an hour that restarts five hours sooner just paid for a substantial charter several times over. That is the entire buying decision, and it is why our quotes show time-to-restart for each mode side by side.
Four ways to move a line-down shipment
| Mode | Best lane | Watch out for | Restart profile |
|---|---|---|---|
| Hot-shot ground | Under ~500 miles, ready-now freight | Traffic and driver hours on longer lanes | Often fastest door-to-door on short lanes |
| Next flight out | Small parts, hub-to-hub | Schedule gaps at night and weekends — NFO service | Hours, when the schedule cooperates |
| On-board courier | Small critical items, cross-border | Person-portable size limit — OBC service | Hours, with unbroken custody |
| Dedicated charter | Off-hours, oversized, plant-adjacent fields | Costs real money — justify it with the math above | Launches on your clock; avg wheels-up <2 hr |
What we need from you on the first call
Have what you can. Dispatch works with partial information every day — the quote starts on the first call, not after a form.
- What is down and the cost per hour — even a rough figure sharpens every recommendation
- Origin — supplier dock, warehouse, or repair vendor, and the part’s ready time
- Destination — plant address and receiving-dock hours
- Dimensions and weight — module, pallet, or dies; drives aircraft selection
- The restart deadline — the shift you are protecting
- Customs — cross-border origin or destination, and who owns the broker relationship
Parallel-pathed from the first call
Representative missions
Patterns from our documented mission files. Details are generalized to protect client confidentiality — no client names, airports, or tail numbers.
Tier-1 stamping line, weekend
A die component failed after Friday cutoff with no scheduled lift until Monday. A cargo charter launched that night from a regional field near the supplier; the line ran Saturday morning.
Cross-border harness shortage
A wiring-harness shortfall at a US plant with the supplier in Mexico: customs prepared in parallel while the aircraft flew, and the freight cleared on landing instead of after it.
Short lane, no aircraft needed
A 300-mile lane mid-afternoon: the hot-shot truck beat every air option door-to-door. We said so, dispatched the driver, and kept the charter desk out of it.
When you do not need us
- The restart deadline is days away — scheduled freight or a standard truck will do it for a fraction of the cost.
- You need a permanent daily lane at contract rates — that is forwarder work; we are the escalation desk for when it breaks.
- The shipment is available only after the deadline passes — no mode fixes that; we will tell you straight.
If one of those fits, we will say so on the phone and point you at the cheaper option. A desk you can trust at 2am is worth more to us than one charter.
What is line-down logistics?
When does a charter make financial sense for a line-down?
Can you pick up directly from our supplier?
Our supplier is in Mexico / Canada. Can you handle customs?
How fast can you actually launch?
What if the part is not ready yet?
What size and weight can you move?
Can a technician or engineer travel with the shipment?
Do you serve plants far from major airports?
What does this cost?
Who do we deal with during the mission?
Who actually flies the aircraft
OnFly Air is an air charter broker and logistics coordinator, headquartered in Kentucky with an office in San Diego, CA. We are not a direct air carrier. Every flight we arrange is operated by an FAA-certificated Part 135 air carrier (or the international equivalent) that we hand-select for the mission from a 2,000+ operator network — 500+ of them vetted for time-critical launch, including ARGUS and Wyvern-rated carriers. Ground legs, couriers, and customs are coordinated through vetted specialist partners. One OnFly dispatcher owns the mission end to end.
Every hour dark has a price. Beat it.
Call with the lane and the deadline — the mode comparison starts immediately.
Faster than overnight shipping
The plain-English guide when the deadline beats every carrier cutoff.