After the latest National Air Traffic Services (NATS) disruption, many travelers have asked the same question: if your flight was delayed or canceled because air traffic control systems failed, can you claim compensation? Under UK and EU passenger-rights rules, the answer is often no for fixed cash payouts, but that does not mean airlines can simply walk away from the costs disruption creates.

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Can You Claim Compensation for the NATS Flight Disruption?

What happened and why it matters for compensation claims

Published guidance from the UK Civil Aviation Authority (CAA) indicates that the disruption tied to a technical issue affecting NATS flight planning systems is likely to be treated as “extraordinary circumstances” for the day of the incident. That classification matters because it is one of the main legal reasons airlines can refuse fixed-sum compensation for delays and cancellations under UK261 and the EU’s parallel Regulation 261/2004.

In practical terms, extraordinary circumstances generally cover events outside an airline’s control, including certain air traffic management decisions and air traffic control-related issues. When that threshold is met, the airline may still owe care and assistance, and may still owe a refund or rerouting, but it may not owe the headline cash amounts passengers often associate with “EU261 compensation.”

Because disruptions can cascade, a key point for travelers is whether their flight’s delay or cancellation was caused by the NATS event itself or by knock-on operational problems later. Publicly available guidance focuses on the incident day; later flights can become more fact-specific, and airlines may scrutinize whether the underlying cause remained the same or shifted to avoidable operational decisions.

When you can still get money back: refunds, rerouting, and duty of care

Even when fixed compensation is unlikely, UK261 and EU261 still require airlines to offer passengers choices when flights are canceled or heavily disrupted. That typically includes a refund (for the unused ticket, and sometimes for already-flown segments that no longer serve the trip purpose) or rerouting to the final destination at the earliest opportunity, under comparable transport conditions.

For long delays, passenger-rights rules also focus on “right to care.” Depending on the length of delay and flight distance, this can include meals and refreshments, and access to communications, with hotel accommodation and transport to and from the hotel when an overnight stay becomes necessary. The obligation can apply even when the disruption cause is extraordinary, which is why keeping receipts and documenting what happened matters.

For travelers departing from the United States on itineraries that were affected indirectly, a different set of rules may apply. US Department of Transportation policy centers on refunds when an airline cancels or makes a significant change and the passenger does not accept the alternative. That is not the same as UK261-style fixed compensation, but it can still be an important path to recovering money when plans collapse.

What “extraordinary circumstances” means, and what it does not mean

Under UK261, airlines generally do not have to pay fixed-sum compensation if the disruption was caused by extraordinary circumstances. CAA materials list examples that can include certain air traffic control decisions and strikes unrelated to the airline, as well as severe weather or political instability. The basic idea is that the event is not inherent in the airline’s normal activity and is outside its actual control.

However, extraordinary circumstances do not wipe away all airline responsibilities. Airlines can still be expected to provide refunds or rerouting and to cover reasonable care and assistance. In addition, publicly available guidance emphasizes that airlines may need to show they took all reasonable measures to avoid the delay or cancellation, and that they organized resources appropriately once the extraordinary event ended.

This is where disputes often arise. Passengers may see a long delay, assume compensation is automatic, and receive a denial. Airlines may cite air traffic control disruption broadly, but passengers may argue that later failures, such as poor rebooking practices or avoidable crew or aircraft positioning problems after operations resumed, contributed to the final delay. Outcomes can depend on flight-specific evidence and timing.

How to file a claim without paying a third party

Start with the airline, not a claims company. Most carriers provide online forms for UK261 and EU261 claims, and for reimbursement of expenses. For NATS-related disruption, a claim may still succeed for out-of-pocket costs tied to care and assistance, even if the fixed compensation portion is rejected.

When submitting, include the booking reference, flight number, date, and a clear description of what you are claiming: refund, rerouting costs, reimbursement for meals, hotel, ground transport, and communication expenses. Provide receipts and a brief timeline, including when you were notified and what alternatives were offered at the airport or in the app.

If you booked a package holiday, also check the tour operator’s terms, because rerouting and accommodation may be managed differently. And if you used travel insurance, review whether it covers delays, missed connections, or additional accommodation, especially where airlines provide limited assistance in practice during mass disruption.

Common pitfalls: knock-on delays, missed connections, and deadlines

One of the most confusing areas is “knock-on” disruption. A flight canceled the day after an air traffic control incident may still be linked to the original event, but airlines may argue the cause remained extraordinary while passengers argue the carrier had time to recover. If your arrival at final destination was delayed by many hours due to rerouting, keep evidence of the reroute offered and when you actually arrived.

Missed connections can also complicate claims. Under passenger-rights regimes, the key metric is usually the delay at the final destination on a single booking, not each individual leg. That means documentation of the full itinerary matters, including boarding passes, rebooking confirmations, and any written notifications.

Finally, watch for process deadlines. Passenger-rights laws and airline policies can differ on time limits for submitting claims and for escalating complaints. If an airline rejects reimbursement for reasonable expenses, travelers can use the airline’s complaints process and, where applicable, alternative dispute resolution or complaint pathways described in consumer guidance, but success will usually depend on clear records rather than broad arguments about disruption.