What Are the EU Flight Claim Deadlines for Compensation Under Regulation 261/2004?

The Short Answer: Usually Six Months from the Arrival Date

The main deadline for an EU flight compensation claim is generally six months from the date you arrived after the disrupted flight. This rule applies when Regulation (EC) No 261/2004 is relevant, including eligible flights departing from the EU and qualifying flights operated by an EU-based airline arriving from outside the EU. The deadline concerns the date you notify the airline or its designated representative, not the date a court, ombudsman, or consumer platform ultimately decides the claim. Keep written evidence showing the booking, the disruption, arrival date, and the date of your first claim. If the airline rejects a timely claim, the next legal deadlines depend on the country and method of complaint, so travelers should not wait until day six months to complain. As of 26 September 2026, proposals or political agreements to update passenger rights should not be confused with rules that are already legally in force.

Also worth reading: What Are the EU261 Compensation Deadlines You Need to Know in 2026? · When Does an EU261-Eligible Flight Cancellation Qualify for Compensation? · Will the New 2027 Flight Compensation Rules Mean Up to 600 Euros or 400% Payouts?

Six months is usually the best general answer, but it is not a universal filing period for every airline event. A missed connection, a package holiday, or a separate airline ticket may involve a different contract and domestic deadline. The six-month period does not guarantee an award: the flight must satisfy the geographical scope and the economic threshold requiring a distance of at least 1,500 kilometres, and an airline may lawfully avoid compensation for cancellations caused by events beyond its control. The passenger also needs to have complied with applicable check-in and rerouting rules. Claims are still worth making where documents are imperfect because the airline can ask for clarification after receiving notice. Acting close to the deadline may be reasonable if evidence needs to be gathered, but waiting several additional months is risky.

Which Flights Fall Within Regulation 261/2004?

Regulation 261/2004 normally covers passengers travelling on a commercial flight departing an EU airport, regardless of the airline’s nationality or the passenger’s residency. It also covers passengers arriving in the EU on an airline operating flights under an operating certificate issued in an EU member state. The free-flowing movement provisions removed many former internal-border distinctions in 2009, so “international” is not the same as “outside the EU” for every travel scenario. Travellers should not assume that a flight is outside scope merely because it is not an EU airline, or inside scope merely because it lands in Europe. The carrier, airport of departure or arrival, operating certificate, and disruption type must all be checked.

There are important exclusions. Regulation 261/2004 is not a general insurance policy for every travel inconvenience, and it does not automatically compensate passengers for a delayed baggage delivery, ticket-price increase imposed by the airline, inconvenience while waiting for a replacement flight, or a missed holiday activity caused by a short delay. Publicly funded routes, pilots working under an employment contract, military and certain state-service flights, and airline flights in the European Economic Area context can raise separate questions. Compensation is also unavailable for passengers who did not check in on time or who voluntarily accepted a rerouting offer under circumstances where the rules require acceptance. However, airline cancellation shortly before check-in can be treated differently depending on the operating arrangement, so a label such as “no-show” does not by itself resolve the claim.

The standard cash compensation ranges are €250 for qualifying flights of 1,500 kilometres or more, €400 for qualifying flights between 1,500 and 3,500 kilometres, and €600 for qualifying flights exceeding 3,500 kilometres. The amounts are fixed for the delay or cancellation categories described by the Regulation; they are not a calculation of the full value of a lost holiday, a damaged meeting, or every consequential expense. A passenger may therefore recover a defined amount from the airline while separate contractual or statutory rights may apply to accommodation, meals, refreshments, and certain transport needs under Regulation 261/2004. These are separate remedies: the €600 figure is not an unlimited cap on all possible losses.

Arrival delays generally become compensable once the delay reaches three hours. The special two-hour threshold applies in limited circumstances involving flights of 1,500 kilometres or less from the EU to a non-EU destination, and the airline has offered a replacement that no longer meets the applicable rescheduled-arrival time. Different thresholds are relevant to a cancellation: for cancellations, the length of the offered replacement journey and the cancellation notification time matter. For a delay, the compensating loss concerns the delay at final destination, not necessarily the late arrival at an intermediate connection. This distinction becomes significant on multi-leg itineraries, where one leg is delayed but the passenger reaches the final destination within the required allowance.

A flight under an operating certificate issued by an EU airline can bring flights from outside the EU into scope, but passengers should not equate that with a general right to bring every foreign carrier operating the route into the Regulation. The responsible operating carrier must be identified, particularly for codeshares and wet leases. An operating carrier is not always the airline whose marketing code appears on the ticket. Legal markets, such as the United Kingdom and Northern Ireland, may have comparable or modified rights under their domestic regimes, but the applicable rules may differ from the EU calculation. The correct legal basis should therefore be confirmed before calculating the amount or filing a complaint.

How to Calculate the Six-Month Deadline Correctly

Start with the date on which the passenger arrived at the final destination after the disrupted flight, rather than the scheduled departure date. The UK Civil Aviation Authority has explained the clock-day approach used for the UK six-month notification rule: the six-month point falls on the corresponding date in the following month, but the deadline is the end of that day, so 12:00 a.m. on the sixth day is not treated as a premature deadline. A passenger arriving late on 26 September 2026 would, under that method, generally need to notify the carrier by 31 March 2027. If the relevant date has no corresponding day, the final day of the last available date in that month is used. This is a point on which travellers, handlers, and consumer bodies have not always agreed consistently, so keeping proof of timely submission is especially important.

The notification can be made to the airline or an authorised agent, and a court has treated a person or company in a contractual relationship with the airline as an authorised agent in the relevant circumstances. Automated booking platforms are not automatically entitled to act for the passenger merely because they sold the ticket. Email to a general customer-service address is still useful if it reaches the airline’s system, but a separate claim, complaint form, or documented request to an authorised representative gives a clearer record. The passenger should state the flight number, operating carrier, booking reference, disruption, final arrival date, and the relief sought. Photographs of the boarding pass and airline messages, plus receipts for rerouting expenses, can support the claim.

A written acknowledgement from the airline is useful but is not always available because a valid notice can be sent without a prescribed form. A notice delivered to an automated legal-claims address should be retained in full, including headers, attachments, and delivery status. If a deadline falls on a weekend or public holiday, the applicable domestic rules concerning time limits may matter, so a passenger near the deadline should submit early. A rejected claim does not necessarily become time-barred merely because the airline failed to answer, but the passenger must still proceed to the relevant national enforcement process and later court deadlines. Domestic limitation periods can be much longer or shorter than the airline-notification period, making early advice important where the claim is disputed.

How to Make a Claim: A Document-Focused Process

First, identify the actual operating airline, final destination, scheduled flight, actual flight, and date of arrival. Record whether the flight was cancelled, delayed at departure, delayed at an intermediate airport, or delayed on arrival at the final destination. Next, gather the ticket confirmation, payment record, booking reference, check-in confirmation, boarding passes, delay or cancellation notice, flight-tracking history, and any replacement-ticket offer. A complete file is particularly useful when the passenger boarded an earlier aircraft, accepted a change, or experienced a long missed connection. It also helps the airline distinguish an eligible claim from one involving a voluntary schedule change, a passenger error, or a separately ticketed connection.

The claim should be sent to the airline or its authorised representative with a clear statement of the right relied upon and the relief requested. For a Regulation 261/2004 monetary claim, ask for €250, €400, or €600 as the applicable fixed amount; for assistance, identify the qualifying meals, refreshments, accommodation, and transport costs. A passenger need not concede that the ordinary short-delay assistance is the only remedy available. If the airline refuses, check its formal complaint procedure, then contact the national civil aviation authority or competent consumer enforcement body. For a qualifying UK departure or participating UK carrier operation, the Civil Aviation Authority can receive complaints and may pursue enforcement, although this is not the same as private litigation. A package-tour operator and an airline can have concurrent contractual duties, but one should not delay pursuing the other merely because responsibility is shared.

A third-party service may assist with assembling and sending a claim, but the passenger remains responsible for the notification date unless the service is demonstrably authorised to act for the passenger. Do not assume that a paid company can contact the airline on a passenger’s behalf. Ask who receives the claim, who reviews the authority, whether a success fee is charged, and what happens if the deadline is missed. Independent claims services commonly charge a percentage of compensation rather than a fixed government filing fee, which helps explain why a €400 entitlement can produce a substantial fee. The commercial price is not itself proof that the claim is valid.

Common Mistakes That Can Weaken a Valid Claim

The most frequent error is confusing the six-month airline notification period with the period for a national complaint, court action, or a package-tour contract claim. A second error is basing the calculation on the cancellation date when the relevant arrival date produces a different deadline. Others involve addressing the airline that issued the ticket rather than the operating carrier, relying on a travel agency’s rejection without asking whether it had authority to receive the claim, or failing to prove that the notice was sent. Assuming a delay exceeds two hours is enough is also mistaken; the ordinary arrival-delay threshold is three hours, with narrow short-flight rules where the two-hour requirement can apply.

A passenger can also weaken a claim by saying the airline cancelled the flight when the evidence shows a separate, voluntary trip extension. Airline announcements that simultaneously say “delayed” and “cancelled” should be preserved because the precise nature of the disruption may affect the applicable requirements. Receipts matter for expenses, although a passenger should not inflate a claim by including items already reimbursed. Missing check-in and no-show records should be reviewed honestly, but the passenger can explain circumstances such as a long check-in queue or a sudden gate closure, particularly where the facts meet the Regulation’s limited exception. A refusal to offer facts or documents is understandable when passengers have concerns, but it can make an eligible claim harder to substantiate.

Do not treat a £, $, or 400% figure seen in a headline as the standard EU compensation. A percentage may describe a consumer-platform fee, an insurance multiple, an approximation of €600 against a low ticket value, or a proposal to reform passenger rights. The existing Regulation uses fixed euro amounts and does not calculate 400% of the ticket price. Likewise, news about a new European passenger-rights package is not necessarily a new claim deadline. The passenger should identify whether a measure is a Regulation, a formal amendment, a political agreement, a proposal awaiting final adoption, or future commencement, and check its transition and application dates.

EU Reform in 2026: What Has and Has Not Changed

As of 26 September 2026, Regulation 261/2004 remains the central EU legal instrument for denied boarding, cancellation, and long-delay compensation. A passenger should not assume that every reform announced during negotiations in 2025 or 2026 is already in force for a flight. New EU passenger-rights rules can be adopted through an amended Regulation, but publication, entry into force, and application dates can differ, with some provisions being introduced later or subject to transition periods. Therefore, neither a proposed expansion of rights nor a newly agreed deadline should be applied retrospectively to an earlier flight unless the adopted legal text expressly provides for it.

Interest in reform has included stronger coordination for connecting flights, treatment of airlines outside the EU, clearer rights before final check-in, and possible changes to delay thresholds or compensation levels. Those discussions may improve consistency for some passengers, but they do not make every ineligible claim valid. Any new arrangement may preserve or alter the six-month notification framework, yet until the operative text is available and effective, the existing law and the applicable national rules are the relevant foundation. The Regulation’s interaction with Montreal Convention limits and official interpretation is also important, because international air law does not simply disappear when domestic passenger rights apply. Claims advisers should be able to cite the adopted legal provision and commencement date rather than a media headline or proposal.

For UK travel, the picture also needs separate attention. The United Kingdom left the EU on 31 January 2020 at 23:00 GMT, and the EU Regulation cannot be treated as a universal rule for every flight involving the UK. The UK’s retained passenger-rights framework and the London Passenger Rights Scheme for certain flights from London-area airports can produce similar benefits while using their own scope, exemptions, and complaints routes. The Civil Aviation Authority remains a relevant source for UK claims, while the European Commission’s Your Europe portal is a relevant source for flights under the current EU regime. A departure, arrival, and carrier test should be completed before choosing a forum.

When to Act and What It May Cost

Act as soon as the flight disruption becomes known, even if the full six-month period has not expired. A short delay may be too long to qualify, so a passenger should not automatically assume compensation, but preserving the airline’s messages and a timeline is inexpensive. The best approach is to send clear notice well before the deadline, allow the airline time to investigate, and escalate promptly if it does not respond. If connecting flights were sold separately, record the fare conditions and missed-connection policy because Regulation 261/2004 may protect the flight itself without awarding automatically for every loss on the next ticket.

A direct claim to the airline can usually be made without a charge to the passenger. Government complaint and court forms may have their own procedural costs, depending on the country, and pursuing a claim can involve lost time, evidence collection, and potentially a fee if the claimant selects a percentage-based service. Under a typical success-fee model, a service may deduct part of the amount recovered, commonly around 20% to 40% depending on the provider, contract, and applicable restrictions; this is not a universal EU tariff. A customer should ask whether exceptional circumstances, membership benefits, or unsuccessful claims alter the fee, and should check whether handling the claim limits or affects an insurance policy. Paying a large upfront fee is not necessary merely to preserve a possible Regulation 261/2004 claim.

The practical balance is to avoid both extremes: paying an aggressive service before checking scope and deadline, and waiting until the final day without a written claim. A passenger who has a clear booking, a qualifying EU connection, and strong disruption evidence can submit a concise claim directly. A passenger facing an extraordinary-event defence, a UK-only route, a code-share dispute, or a separate missed connection should obtain jurisdiction-specific guidance. The goal is not to sell a claim but to ensure the passenger understands whether a remedy exists, who owes it, and how each deadline operates. Under current EU law, the ordinary answer remains up to six months from arrival, followed by country-specific routes if the airline refuses.