What is an air traffic control delay?

What counts as an air traffic control delay?

Airspace is managed in layers above the airline. Controllers sequence arrivals into a busy airport, flow-management units hold aircraft on the ground when a sector is saturated, weather or military activity closes or reserves blocks of airspace, and a control centre short of qualified staff reduces the number of movements it will accept. A flight held for any of these reasons is late for a cause the carrier does not control, even though the carrier still operates the flight and still owes the passenger whatever the applicable rules require.

For claims purposes the useful question is therefore not what the controller did, but how the disruption is classified. Regulation (EC) No 261/2004 applies to passengers departing from an airport in an EU member state, and to passengers flying from a third country into one on a Community carrier unless they already received benefits or compensation and assistance there. [1] The regulation then separates two things that are easy to blur together: the cause of a disruption shapes the compensation position, while the length of a delay shapes the assistance position. [1]

The text also settles what counts as a disruption at all: a cancellation is the non-operation of a flight that was previously planned and on which at least one place was reserved. [1] A flight that operates late is a delay; a flight that does not operate at all is treated under the cancellation provisions, with the consequences that follow from them.

Is an air traffic control delay an extraordinary circumstance?

In the EU framework, yes — but with a specific doorway. The recitals to Regulation (EC) No 261/2004 state that extraordinary circumstances should be deemed to exist where the impact of an air traffic management decision in relation to a particular aircraft on a particular day gives rise to a long delay, an overnight delay, or the cancellation of one or more flights by that aircraft, even though all reasonable measures had been taken by the carrier concerned to avoid the delays or cancellations. [1] The same recitals give the general examples of extraordinary circumstances as political instability, meteorological conditions incompatible with the operation of the flight concerned, security risks, unexpected flight safety shortcomings and strikes affecting an operating carrier. [1]

The operative provision sits in the cancellation article: an operating carrier is not obliged to pay compensation if it can prove that the cancellation was caused by extraordinary circumstances which could not have been avoided even if all reasonable measures had been taken. [1] The burden of proving whether and when a passenger was informed of a cancellation rests with the carrier. [1]

Classifying the cause as external does not leave the carrier without a route to recover its money. The regulation states that nothing in it restricts an operating carrier's right to seek compensation from any person, including third parties, in accordance with applicable law. [1]

What care is still owed during an ATC delay?

Where an operating carrier reasonably expects a flight to be delayed beyond its scheduled departure time, the regulation requires assistance once the delay passes a threshold set by distance. [1]

Assistance means meals and refreshments in a reasonable relation to the waiting time; hotel accommodation where a stay of one or more nights becomes necessary, or where a stay additional to the one the passenger intended becomes necessary; and transport between the airport and the place of accommodation. [1] Passengers must additionally be offered, free of charge, two telephone calls, telex or fax messages, or emails. [1] Carriers must pay particular attention to the needs of persons with reduced mobility and any persons accompanying them in these situations, as well as to the needs of unaccompanied children. [1] In cases of delay of any length, persons with reduced mobility, those accompanying them and unaccompanied children have the right to care as soon as possible. [1]

Two further triggers apply. Where the reasonably expected departure time is at least the day after the previously announced departure time, the carrier must also offer hotel accommodation and transport to it. [1] Where the delay reaches at least five hours, passengers must be offered the reimbursement option: repayment within seven days of the full cost of the ticket for the parts of the journey not made, and for parts already made where the flight no longer serves any purpose in relation to the original travel plan, together with a return flight to the first point of departure where relevant. [1]

Information travels with the assistance. A carrier that cancels a flight, or denies boarding, must give each affected passenger a written notice setting out the rules for compensation and assistance, and must give an equivalent notice to passengers affected by a delay of at least two hours, including the contact details of the national body designated to enforce the regulation. [1]

Exceptions and limits

• The defence is about compensation, not care. The extraordinary circumstances test excuses the payment of compensation in the cancellation article; the assistance obligations attached to delay are set by the distance brackets above and carry no equivalent cause-based exception in the text. [1]
• Care can be cut back for operational reasons. The recitals allow care to be limited or declined where providing it would itself cause further delay. [1]
• Compensation figures. Where compensation is payable, the regulation published in the Official Journal of 17 February 2004 sets it at EUR 250 for flights of 1,500 km or less, EUR 400 for intra-Community flights over 1,500 km and other flights between 1,500 and 3,500 km, and EUR 600 for all other flights, with distances measured by the great circle route. [1] It may be paid in cash, by electronic bank transfer, bank order or bank cheque, or, with the passenger's signed agreement, in travel vouchers or other services. [1]
• Who must present themselves. The regulation applies on condition that the passenger has a confirmed reservation and, except in the case of cancellation, presents for check-in as stipulated and at the time indicated in advance and in writing, or, where no time is indicated, not later than 45 minutes before the published departure time. [1]
• Free and reduced fares. The regulation does not apply to passengers travelling free of charge or at a reduced fare not available directly or indirectly to the public, but it does apply to passengers holding tickets issued under a frequent flyer programme or other commercial programme of an air carrier or tour operator. [1]
• No waiver by contract. Obligations towards passengers may not be limited or waived, notably by a derogation or restrictive clause in the contract of carriage. [1] Rights to further compensation under national law are preserved. [1]
• Different jurisdiction, different rules. The United Kingdom runs its own passenger guidance through the Civil Aviation Authority, whose material covers flight delays and cancellations, disruptions, denied boarding, missed flights and compensation claims, and separately covers consumer protection law, the complaints process and alternative dispute resolution. [2] The rules in this page are those of the EU regulation and should not be read across to the UK regime; see EU261 and UK261 air passenger rights.

Frequently asked questions

Does an airline have to pay compensation for an air traffic control delay?

For cancellations, the carrier is not obliged to pay compensation if it can prove the event was caused by extraordinary circumstances that could not have been avoided even if all reasonable measures had been taken, and an air traffic management decision affecting a particular aircraft on a particular day is deemed to be such a circumstance where it causes a long delay, an overnight delay or a cancellation. [1]

What food and hotel am I entitled to during an ATC delay?

Once the delay passes the threshold for the flight's distance, the carrier must offer meals and refreshments in a reasonable relation to the waiting time, hotel accommodation where a stay of one or more nights, or an additional stay, becomes necessary, transport between the airport and that accommodation, and two telephone calls, telex or fax messages or emails — all free of charge. [1]

Does the cause of the delay change the assistance I am owed?

The assistance triggers are written in terms of expected delay length and distance bracket rather than in terms of cause, although the recitals allow care to be limited or declined where providing it would itself cause further delay. [1]

Does this cover an award ticket booked with miles?

Yes. The regulation states that it applies to passengers holding tickets issued under a frequent flyer programme or other commercial programme of an air carrier or tour operator, even though it excludes free and reduced fares not offered to the public. [1]

Can the airline recover the cost from the air traffic control provider?

The regulation does not restrict an operating carrier's right to seek compensation from any person, including third parties, under the applicable law. [1]

Related pages

Rights overview: EU261 and UK261 air passenger rights. Terms: extraordinary circumstances, duty of care, block time, crew duty time limits. Index: all glossary terms.

Sources

Sources accessed on 18 October 2026. The page covers the EU-wide rules in Regulation (EC) No 261/2004 and the UK Civil Aviation Authority's passenger guidance; airline-specific delay policies, and passenger rights regimes in other countries, are not covered here.

1. Regulation (EC) No 261/2004 on compensation and assistance to passengers, Official Journal L 46, 17 February 2004, checked 18 October 2026
2. UK Civil Aviation Authority, travel problems and rights, checked 18 October 2026