Compensation for Air Traffic Control Delays

If your flight was delayed or cancelled during a recent UK air traffic control failure, you're not alone — and you're probably wondering whether you're entitled to compensation for air traffic control delays. The short answer is that it's more complicated than a straightforward flight delay claim, but that doesn't mean you have no rights at all.

Here's what actually happened, what the airlines still owe you, and where a genuine claim can still exist.

What happened

On the 8th September 2026, a technical fault at Nats — the company that provides air traffic control services to 15 UK airports — triggered widespread cancellations and delays. The breakdown began in the early afternoon and disrupted departures at Heathrow, Gatwick, Manchester and Stansted, before spreading to affect inbound flights across much of southern England.

By the evening, more than 1,000 flights had been cancelled, with at least 177 more cancellations confirmed for the following day — the vast majority at Heathrow. Ryanair alone reported over 65,000 delayed passengers and 50 cancelled flights, and the knock-on effects were felt across European airspace, with some inbound flights held at airports abroad.

Nats said the fault was unrelated to the failures that caused major disruption in 2023 and 2025, and its chief executive, Martin Rolfe, said the company took full responsibility for the disruption. That's the headline — but "taking responsibility" publicly isn't the same as passengers automatically being entitled to cash compensation.

The legal position: why air traffic control failures are different

Under UK flight compensation rules (commonly known as UK261, the retained version of the EU's original EU261 regulation), passengers are normally entitled to fixed cash compensation when a flight is delayed by three hours or more, or cancelled at short notice — but only where the disruption was within the airline's control.

Air traffic control failures are almost always treated as an "extraordinary circumstance". This is a specific legal category that covers events genuinely outside an airline's control — severe weather, security threats, and air traffic control restrictions all typically fall under it. Where a delay or cancellation is caused by an extraordinary circumstance, airlines are not required to pay the standard fixed compensation, even though the disruption is very real and very disruptive to your plans.

This is the main reason a Nats failure, however serious, doesn't automatically generate the same kind of payout as, say, an airline cancelling a flight because of a staffing shortage or an aircraft rotation issue — those are within the airline's control and compensation is far more likely to apply.

What the airline still owes you — regardless of the cause

This is the part many passengers don't realise: even where cash compensation doesn't apply, your airline still has a duty of care obligation that isn't affected by the extraordinary circumstances defence. Regardless of why your flight was delayed or cancelled, you're generally entitled to:

• Meals and refreshments appropriate to the waiting time
• Hotel accommodation and transport, if an overnight stay becomes necessary
• Two free phone calls, emails or faxes
• A choice between a full refund or rebooking onto an alternative flight, if the delay is long enough or the flight is cancelled

Several airlines, including British Airways, confirmed free rebooking for passengers affected by the recent Nats failure. If you weren't offered rebooking, meals, or accommodation you were entitled to and had to pay for them yourself, keep every receipt — those costs are generally reclaimable from the airline even when compensation for the delay itself isn't.

When you might still have a claim

An extraordinary circumstances defence isn't automatically a complete answer, and it's worth checking your situation properly rather than assuming you have no claim at all. You may still have grounds to pursue compensation for air traffic control delays if:

• Your airline failed to provide the meals, accommodation or rebooking you were entitled to, and won't reimburse reasonable costs you had to cover yourself
• The delay you experienced was caused by something separate from the Nats failure — for example, a knock-on delay the airline could reasonably have managed differently
• Your airline gave you inaccurate or delayed information about your rights, affecting decisions you made about rebooking or expenses
• You believe the reason given for your delay doesn't match what actually happened

Airlines don't always get the classification of a delay right, and it isn't unusual for a claim initially rejected as an "extraordinary circumstance" to be worth a second look.

What to do next

If your flight was affected by the recent UK air traffic control disruption, don't assume the door is closed on a claim. Gather your booking confirmation, any correspondence from the airline, and receipts for anything you paid for yourself, and get an assessment of where you actually stand.

Affected by a delayed or cancelled flight and not sure if you're owed anything? Check your eligibility with FlightDelayClaim — we'll assess your flight, your airline's response, and whether there's a claim worth pursuing, at no cost to find out.