A technical failure at UK air traffic control grounded and delayed well over a thousand flights across the country this September. Here's what you're actually entitled to when a flight lets you down, why the answer isn't the same every time, and what that specific meltdown means for anyone caught up in it.
If your UK flight arrives more than 3 hours late, or gets cancelled, you may be entitled to cash compensation of £220 to £520 per person under UK261, the UK's own version of the old EU flight compensation rule. But that's only when the airline was actually responsible for what went wrong.
If the cause was genuinely outside the airline's control, an air traffic control failure, extreme weather, an airport security incident, you keep the right to meals, hotel accommodation and a refund or a replacement flight while it's sorted. You just don't get the cash payout on top. Most people assume any bad day at the airport means an automatic payout, and that's exactly where the confusion starts.
Compensation is never paid automatically, you have to actually claim it from the airline yourself. It costs nothing to ask, so put in a claim even if you're not sure it'll be accepted and let the airline tell you no rather than assuming it on their behalf.
These are the official UK261 compensation amounts from the Civil Aviation Authority, and they only kick in once your flight arrives more than 3 hours late at your destination, or is cancelled.
| Under 1,500km | £220 per person |
| 1,500km to 3,500km | £350 per person |
| Over 3,500km, arriving 3 to 4 hours late | £260 per person |
| Over 3,500km, arriving more than 4 hours late | £520 per person |
A few things worth knowing before you claim. Compensation has to be claimed directly from the airline first, most have an online form for this. Airlines don't have to pay out if they can show the delay was down to "extraordinary circumstances" outside their control, more on exactly what that covers below. And if the airline doesn't resolve your claim within 8 weeks, you can escalate it to an Alternative Dispute Resolution provider or the CAA's own Passenger Advice and Complaints Team.
Keep your boarding pass and any screenshots of the delay or cancellation showing on the departure board. You'll want proof of the actual delay length and the flight details when you come to claim.
"Extraordinary circumstances" is the get out clause that decides whether you get cash compensation or not, and it works differently depending on whose fault the disruption actually was.
Don't rule out a claim just because you remember chaos in the news that day. Ask the airline what reason they've logged for your specific flight's delay or cancellation before assuming you're not owed anything.
On 8 and 9 September 2026, a technical failure at a NATS (National Air Traffic Services) facility caused mass disruption across UK airspace. NATS itself described it as a system failure rather than industrial action, and confirmed a fix had been implemented as the network gradually recovered.
Heathrow, Gatwick, Manchester and Birmingham were the worst affected, with Stansted, Southend, London City, Edinburgh, the Isle of Man and Jersey also disrupted. Over 1,000 flights were cancelled on the first day alone, and by the following morning Heathrow was still showing well over 200 cancellations and hundreds more delays as the knock on effects continued into a second day. Ryanair alone reported more than 65,000 passengers affected across its own cancelled and delayed flights.
Because this was a technical failure at NATS, a third party outside any airline's control, it falls into the extraordinary circumstances bucket. That means no automatic cash compensation for most passengers caught up in it, but everyone affected still had the right to meals, hotel accommodation if they were stuck overnight, and a refund or a rebooked flight while it was sorted.
If you were caught up in the September NATS failure and an airline refused you meals or a hotel while you waited, that part isn't optional for them regardless of the cause, it's worth pushing back on with your booking reference to hand.
Keep everything, your boarding pass, any receipts for food or a hotel, and screenshots of the departure board. None of it costs anything to keep and it's exactly what you'll be asked for if you do end up claiming.
Flight compensation claims work the same way whether you booked a flight on its own or as part of a package holiday, you claim directly from the airline either way, not from your travel agent or tour operator. What changes with a package holiday is everything around the flight. Your accommodation booking doesn't disappear because your outbound flight was delayed or cancelled, and as an ABTA and ATOL protected agent I'm able to help sort onward travel and keep the rest of your holiday on track while you deal with the airline side separately.
If a delay or cancellation is going to make you miss the start of your holiday, message me as soon as you know, the earlier I hear about it the more options there usually are for sorting transfers, accommodation and any knock on changes.
Between £220 and £520 per person under UK261, depending on the distance of the flight and how late you arrive, but only once your flight is more than 3 hours late or cancelled, and only if the airline was responsible for the disruption.
Not the cash payout. It was a technical failure at NATS, a third party outside any airline's control, so it counts as extraordinary circumstances. You were still entitled to meals, hotel accommodation and a refund or reroute while it was being sorted, just not the compensation on top.
A strike by the airline's own staff, pilots, cabin crew or check-in staff, generally doesn't count as extraordinary circumstances, so compensation is usually still owed. A failure by a third party like NATS, the airport or border control generally does count as extraordinary, which removes the cash compensation but not your other rights.
Contact the airline directly first, almost all of them have an online compensation claim form. If it isn't resolved within 8 weeks, escalate it to an Alternative Dispute Resolution provider or the CAA's Passenger Advice and Complaints Team.
I keep an eye on this stuff so you don't have to, message me if a delay or cancellation has messed up your plans and I'll help sort what's next.