Drone incident above Belgium: economic damage likely runs into millions

The full financial impact of Tuesday evening’s airspace disruption above Belgium — when drones were spotted over Brussels and Liege Airport and near military air bases, forcing a temporary closure of the country’s airspace — is still being assessed. Preliminary calculations, however, suggest the cost could easily exceed €2 million, possibly much more once all ripple effects are taken into account.

According to EUROCONTROL’s Standard Inputs for Economic Analyses (Edition 10, 2024), the average direct cost of a cancelled flight amounts to an estimate of around €27,720 for a flight up to 180 passengers, while a diversion can cost airlines anywhere between €1,400 and €77,200, depending on the aircraft type and distance. Based on early figures indicating around 54 cancellations and 24 diversions, the immediate operational impact could be valued between €1.5 and €3 million, with a central estimate near €2.5 million.

These amounts cover only the direct airline and airport network costs — not the broader economic consequences such as passenger compensation, hotel stays, ground transportation, or lost retail and cargo revenue.

Brussels Airlines spokesperson, Joëlle Neeb, told Aviation24.be: “At this moment, we cannot provide an answer yet; it is far too early for that. But there is no doubt that it will involve a substantial amount. We are also providing assistance to our stranded passengers, this may include a new flight and/or other reasonable costs related to any hotel stays, meals, taxis, and so on.”

Piet Demeyere from TUI Belgium explains: “Yesterday, we had five flights that could not land in Brussels and were therefore diverted to Ostend-Bruges or Amsterdam. Wherever possible, we arranged transfers to Brussels Airport but this was not feasible everywhere. For example, passengers from Sal, who landed in Amsterdam during the night, were provided with overnight accommodation while waiting for a transfer today.

I certainly cannot put an exact figure on this, but the fact remains that every disruption, no matter how small or brief, always requires enormous operational effort, with a cost that, in our vulnerable sector, we are obliged to bear—but really cannot continue to sustain.”

With all airports reopened, even today, airlines are struggling to bring operations back to normal. The federal police are investigating the source of the drones — an act which not only disrupted air traffic but could result in severe legal penalties for those responsible.

While the exact financial toll will take days to confirm, the drone incident once again highlights how vulnerable the aviation sector remains to even short disruptions. For airlines already facing high fuel prices and tight crew scheduling, such interruptions represent not only a logistical headache but a significant financial burden.