AOG Logistics Explained

Three letters that quietly cost the aviation industry a fortune: AOG. When an aircraft is on the ground waiting for a part, the meter is running — and AOG logistics exists to stop it.

AOG stands for aircraft on ground: a situation where a plane cannot fly until a fault is fixed, usually because it is waiting on a specific part. AOG logistics is the specialised business of getting that part to the aircraft as fast as humanly possible — anywhere in the world, at any hour.

Why is AOG so expensive?

A grounded commercial aircraft does not just stop earning — it actively costs money. A single wide-body can burn through tens of thousands of dollars for every hour it sits idle, once you add up lost revenue, knock-on delays, rebooked passengers, repositioned crew and missed slots.

That maths is the whole reason AOG logistics is not about finding the cheapest way to ship a part. It is about finding the fastest reliable way. When you weigh a few hundred dollars of freight against tens of thousands of dollars per hour of downtime, speed is the cost saving.

How AOG delivery works

AOG logistics providers operate 24/7/365 because aircraft do not break only during office hours. A typical AOG response looks like this:

1. Immediate response. A real person answers, day or night, and understands the urgency from the first sentence.
2. Routing. The fastest viable option is identified — often a hand-carry on the next flight out.
3. Collection & customs. The part is collected from the supplier or store and prepared for fast border clearance.
4. Transit. The part moves by the quickest secure means, frequently with an on-board courier travelling alongside it.
5. Hand-over. The part is delivered directly to the maintenance team at the aircraft.

Your AOG transport options

There is no single way to move an AOG part — the right choice depends on size, distance and how fast you need it:

• On-board courier (OBC): a courier hand-carries the part on a commercial flight. Fastest and most secure for small, critical components.
• Next Flight Out (NFO): the part travels unaccompanied on the soonest flight — efficient when it does not need an escort.
• Air charter: a dedicated aircraft for engines, large assemblies or routes with no commercial option.

We break these down fully in OBC vs NFO vs Air Charter.

What makes a good AOG partner?

When an aircraft is grounded, you do not want a portal and a ticket number — you want a person who is already moving. The qualities that matter most are genuine 24/7 reachability, fast and accurate routing, a secure chain of custody, and the experience to clear customs without losing hours at a border. Reliability, at the sharp end of AOG, is still about people and process.

To see what this looks like in practice, read how we covered a same-day AOG from London to Tallinn — offer on the client's desk 2 minutes after the enquiry, wheels up 3 hours later.

The bottom line

AOG logistics is insurance you arrange before you need it. The smartest maintenance and procurement teams have a trusted AOG partner saved in their phone long before the first grounded aircraft — so the response starts with a call, not a search.