By: FlySafe Research
On 21 January 2026, the Court of Justice of the European Union delivered a clarifying judgment on when air traffic control decisions qualify as extraordinary circumstances under Regulation (EC) No 261/2004. The ruling sharpened the boundary between what airlines must pay and what they can lawfully refuse. For passengers stranded by airspace closures — whether triggered by NOTAM restrictions, security situations, or air traffic control directives — the distinction between compensation and care rights is critical. FlySafe analysis shows that misunderstanding this boundary remains one of the most common reasons passengers either overclaim or, more frequently, fail to claim entitlements they are legally owed.
How EU261 Applies to Airspace Closures
Regulation (EC) No 261/2004, in force since 2005, establishes a fixed compensation framework for passengers experiencing cancellations, long delays, denied boarding, and missed connections on qualifying flights. The regulation applies to all flights departing from an EU airport, and to flights arriving in the EU when operated by an EU-headquartered carrier.
Airspace status: when a national authority or Eurocontrol issues a NOTAM closing or restricting airspace, and that restriction directly causes a flight cancellation or delay exceeding three hours, the disruption generally falls under the "extraordinary circumstances" provision of the regulation. As noted by AirTeo, extraordinary circumstances include air traffic control restrictions, sudden airport closures, and security situations that make normal operations impossible.
Article 5(3) of the regulation states that airlines are exempt from paying monetary compensation when the disruption "could not have been avoided even if all reasonable measures had been taken." Airspace closures imposed by sovereign authorities meet this threshold in nearly all cases — the airline has no control over the decision and no reasonable measure can override a government-issued NOTAM.
However, the exemption applies only to the fixed cash compensation. It does not eliminate the airline's obligations under other provisions of the regulation. This is where most passengers lose money they are entitled to recover.
What Airlines Must Still Provide: Care, Rebooking, and Refunds
Even when extraordinary circumstances fully exempt an airline from paying the standard compensation (up to €600 depending on route distance), three core obligations remain intact:
Right to Care (Article 9)
Airlines must provide, at no cost to the passenger:
- Meals and refreshments proportionate to the waiting time
- Hotel accommodation if an overnight stay becomes necessary
- Transport between the airport and the hotel
- Two telephone calls, emails, or faxes
These obligations are triggered regardless of the cause of the disruption. An airspace closure does not relieve the airline of its duty of care. As Skycop notes, during extended waits, passengers on EU261-covered flights retain the right to request meals and refreshments as provided under the regulation.
The 2010 Eyjafjallajökull volcanic ash crisis established a landmark precedent. In the McDonagh case, the European Court of Justice confirmed that even during a prolonged, continent-wide airspace closure caused by volcanic ash — an extraordinary circumstance by any definition — airlines were still required to provide care and transport options to stranded passengers. The care obligation has no time limit and no cost cap.
Right to Rebooking or Refund (Article 8)
When a flight is cancelled due to an airspace closure, the passenger must be offered a choice between:
- A full refund of the ticket price (for the unused portion of the journey), to be paid within seven days
- Re-routing to the final destination at the earliest opportunity
- Re-routing at a later date of the passenger's choosing
Affected routes: this applies to all NOTAM-restricted routes. If an airline cancels a flight because the planned routing transits closed airspace, and no alternative routing is operationally feasible, the passenger's rebooking and refund rights are fully active.
Recommendation: passengers should request rebooking in writing and retain all correspondence. If the airline cannot reroute within a reasonable timeframe, the full refund option should be exercised.
Compensation Payment Method
When compensation is owed (in cases where extraordinary circumstances do not apply), EU261 requires that it be paid in cash, by cheque, or by electronic bank transfer — unless the passenger voluntarily agrees to accept vouchers. This is a critical distinction. Airlines may offer vouchers as a first response; passengers are under no obligation to accept them.
When Airspace Closures Do Not Exempt Airlines
The extraordinary circumstances defence is not absolute. Several scenarios exist where an airspace closure occurs but the airline may still owe full compensation:
Foreseeable closures with adequate notice. If a NOTAM restriction was published well in advance and the airline failed to adjust its schedule, courts may find that reasonable measures were not taken. Under EU261, airlines must inform passengers of a cancellation at least 14 days before departure to avoid the compensation obligation entirely. An airline that sells tickets for a route it knows will be NOTAM-restricted, then cancels at the last moment, faces a weaker extraordinary circumstances defence.
Partial closures with available alternatives. If the airspace closure affects only a specific FIR and alternative routings exist, the airline's failure to reroute may undermine the extraordinary circumstances claim. The regulation requires that the carrier demonstrate it took "all reasonable steps to prevent" the disruption, as Botton Line explains. Choosing to cancel rather than reroute — when rerouting was feasible — may not meet this standard.
Downstream disruptions after airspace reopens. An airspace closure that lasted six hours does not excuse cancellations made 48 hours later due to crew positioning or aircraft availability issues. These are operational problems within the airline's control. As The Points Guy notes, mechanical and technical problems are not considered extraordinary circumstances.
Vague justifications. Airlines may use language such as "operational safety issue" or "circumstances beyond our control" without specifying the actual cause. AirTeo warns that this approach is often the fastest way for an airline to deny a claim and reject compensation. Passengers should request specific documentation identifying the NOTAM number, the affected FIR, and the timeframe of the restriction.
Compensation Amounts and Distance Thresholds
For cases where extraordinary circumstances do not apply — or where the airline fails to prove them — EU261 sets fixed compensation by route distance:
| Flight Distance | Compensation |
|---|---|
| Up to 1,500 km | €250 |
| 1,501–3,500 km (or intra-EU over 1,500 km) | €400 |
| Over 3,500 km | €600 |
These amounts may be reduced by 50% if the airline offers re-routing that delivers the passenger to the final destination within a defined window (two to four hours of the original arrival time, depending on distance).
Based on publicly available NOTAMs and airline schedule data, FlySafe analysis shows that airspace closures affecting major FIRs in the Middle East and Eastern Europe have generated thousands of route cancellations in recent years. The vast majority of affected passengers were entitled to care and rebooking even where cash compensation was correctly declined by the carrier.
How to File a Claim: Step-by-Step
The claim process is straightforward but requires documentation. Points Path recommends keeping all records from the moment of disruption:
1. Gather documentation. Retain your boarding pass, booking confirmation, and any written communication from the airline. Photograph departure boards showing the delay or cancellation. Record your actual arrival time at the final destination. If possible, request a flight verification letter at the airport — this is an official document confirming the disruption.
2. File directly with the airline. Submit a written claim referencing Regulation (EC) No 261/2004 by name. Include your flight number, date, booking reference, and a clear statement of what you are claiming (refund, reimbursement of care expenses, or compensation). Many airlines have dedicated claim forms; others require a general correspondence submission.
3. Escalate if necessary. If the airline refuses the claim or fails to respond within a reasonable period (typically six to eight weeks), passengers can escalate to the National Enforcement Body (NEB) in the EU member state where the disruption occurred. Each EU country designates an NEB responsible for enforcing the regulation. Alternatively, as AirHelp notes, third-party claim services can pursue compensation on the passenger's behalf, typically on a no-win-no-fee basis.
4. Retain expense receipts. If the airline fails to provide care (meals, accommodation, transport), passengers who purchase these independently can claim reimbursement. Keep all receipts. Expenses must be reasonable and proportionate.
UK261: Post-Brexit Protections
Following the United Kingdom's departure from the European Union, EU261 was incorporated into UK domestic law in December 2020 under retained EU legislation. As Skycop confirms, similar protections apply under UK law for eligible flights involving the UK. The scope covers flights departing from UK airports (on any airline) and flights arriving in the UK on UK-based carriers. Compensation amounts are denominated in pounds sterling, with equivalent thresholds.
Key Takeaway
Airspace closures triggered by NOTAM restrictions and air traffic control decisions will, in most cases, qualify as extraordinary circumstances under EU261 — exempting airlines from paying the fixed cash compensation. But this exemption is narrow. Airlines remain fully obligated to provide care, accommodation, rebooking, and refunds. The failure to provide these entitlements is itself a violation of the regulation, and passengers can and should claim reimbursement for any out-of-pocket expenses incurred as a result.
FlySafe recommends that passengers affected by airspace closures take three immediate steps: document everything, request care and rebooking in writing, and do not accept vouchers in place of cash refunds unless doing so is a genuine preference. Analysis based on publicly available data only.
Frequently Asked Questions
Can I claim compensation if I received a travel voucher instead of cash?
If the voucher was accepted voluntarily and knowingly, it may be treated as settlement. However, EU261 requires that compensation and refunds be paid in cash, cheque, or electronic transfer by default. If an airline offered only a voucher without presenting the cash alternative, the passenger may still have a valid claim for the monetary amount owed.
How much does my compensation reduce if I accept a reroute with a delay?
If the airline offers re-routing and the passenger arrives at the final destination within two hours (for short-haul) or four hours (for long-haul) of the originally scheduled arrival, the compensation may be reduced by 50%. For example, a €400 entitlement on a medium-haul route would be reduced to €200 if the rerouted flight arrives within three hours of the original schedule.
What documents must airlines provide to prove a cancellation was due to extraordinary circumstances?
Airlines bear the burden of proof. They must demonstrate the specific extraordinary circumstance (such as a NOTAM reference, air traffic control directive, or meteorological report) and show that reasonable measures were taken to mitigate the impact. Vague references to "operational issues" or "circumstances beyond our control" are insufficient. Passengers should request the specific NOTAM number or ATC directive that caused the disruption.
If I have connecting flights on a single ticket and one leg is cancelled due to airspace closure, what are my rights for the entire journey?
When flights are booked on a single ticket, the regulation treats the journey as a whole. If a cancelled segment prevents the passenger from reaching the final destination, the airline must offer re-routing for the entire remaining itinerary or a full refund for the unused portions. Care obligations apply from the moment of disruption until the passenger reaches the final destination or accepts a refund.
- Авиакомпании освобождены от выплаты фиксированной денежной компенсации (до €600) при закрытии воздушного пространства по решению властей, однако это освобождение не распространяется на обязательства по уходу, перебронированию и возврату средств — именно здесь большинство пассажиров теряют деньги, которые вправе получить.
- Даже при форс-мажорных обстоятельствах авиакомпания обязана бесплатно предоставить питание, проживание в отеле, трансфер и связь (Article 9), а также предложить полный возврат стоимости билета или альтернативный рейс (Article 8).
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Information is accurate as of the publication date. FlySafe uses exclusively publicly available data.