There’s an old saying in aviation never waste a good crisis. It sounds cynical, but it usually means the industry learns something useful when the wheels come off.
Right now, the wheels aren’t just wobbling, they’re being rerouted halfway around the globe.
And somewhere in the middle of it all sits a deceptively simple question: should airlines really lose their airport slots because a war has made flying, frankly, unworkable?
You don’t need to be a strategist at the International Air Transport Association to know the answer. But, as ever, the answer and the rules don’t always arrive at the airport together.
Slots: Small Windows, Big Stakes
For the uninitiated, a slot is just a take-off or landing time. For an airline, it’s oxygen.
Lose a slot at a major airport, and you don’t just cancel a flight; you start pulling threads from a network that was carefully woven over the years. Routes disappear. Connections collapse. Competitors step in. And just like that, market share walks out the door.
That’s why the industry guards slots with almost religious discipline. The Worldwide Airport Slot Guidelines WASG, if you prefer your acronyms neat, exist to keep things fair and efficient. Use your slots 80 per cent of the time, and you keep them. Fall short, and someone else gets a go.
Simple. Elegant. Brutal.
It works beautifully until reality decides otherwise.
When the Sky Closes In
The current conflict in the Middle East has turned tidy scheduling into something closer to controlled chaos. Airspace closures have carved holes in flight paths. Aircraft are taking scenic routes nobody asked for. Fuel, never cheap, is now occasionally scarce in the wrong places at the wrong time.
And airlines? They’re doing what sensible operators do, cutting flights, adjusting schedules, and trying to stay one step ahead of a situation that refuses to stand still.
No drama. No grandstanding. Just hard decisions, made quickly.
But here’s the catch: under a strict reading of slot rules, those same decisions could cost them dearly.
Because the system, for all its strengths, doesn’t automatically recognise the difference between poor planning and plain bad luck.
JNUS: The Safety Valve Everyone Pretends Not to Need
Enter Justified Non-Use of Slots JNUS, a term that sounds like it belongs in a legal textbook but, in practice, acts as the industry’s pressure release valve.
We saw it used quite sensibly during the COVID-19 pandemic, when aircraft were grounded, and borders slammed shut with little warning and even less sympathy.
Back then, regulators understood the obvious: you cannot penalise an airline for not flying when it simply cannot fly.
Today, the circumstances are different, but the logic hasn’t changed.
Airlines are now asking for a rolling six-week application of JNUS. Not forever. Not even for long. Just long enough to get through the worst of the disruption without doing lasting damage to their networks.
It’s a modest request. Which, in aviation, usually means it’s also a necessary one.
The Cost of Getting This Wrong
If regulators hesitate or worse, insist on rigid compliance, the consequences won’t be theoretical.
Airlines may start operating flights they don’t need, purely to protect their slots. Half-empty aircraft burning fuel they can ill afford, flying routes that make little operational sense. It’s inefficient, expensive, and entirely avoidable.
Or they cut back, lose their slots, and spend years trying to rebuild what was lost in a matter of weeks.
Neither option is particularly clever.
And here’s the uncomfortable truth: passengers feel it too. Fewer flights. Fewer connections. Higher fares. Fewer choices.
All because the system refused to bend when it should have.
A Bit of Common Sense Goes a Long Way
The good news is that this isn’t new territory. Slot coordinators, the quiet professionals who keep this machine running, have seen it all before.
They know when a route is genuinely unworkable. They understand that disruptions ripple far beyond a single airport pair. And they’re perfectly capable of distinguishing between an airline gaming the system and one simply trying to survive it.
What they need, what the industry needs, is clarity from governments. A signal that common sense still has a seat at the table.
Because Recovery Won’t Be Instant
Even if the conflict eased tomorrow, and one suspects everyone involved would sign up for that, airlines wouldn’t bounce back overnight.
Aircraft are out of position. Crews are scattered. Schedules need to be rebuilt from the ground up. Fuel logistics must stabilise. Confidence is always fragile; it needs time to return.
This isn’t a quick turnaround. It’s a slow climb back to cruising altitude.
The Bottom Line
Strip away the jargon, and the issue is disarmingly simple.
Do we punish airlines for a war they didn’t start? Or do we give them just enough flexibility to weather it?
JNUS isn’t a favour. It’s not even a concession.
It’s the system working exactly as it was designed to, quietly, sensibly, and with just enough humanity to recognise that sometimes, the sky really does fall in.
And when it does, the industry shouldn’t be grounded by its own rules.
