What are the EU flight compensation legal deadlines under EU261, and how long do I have to claim?

If your flight was delayed, cancelled, or overbooked, one of the first questions worth asking is how much time you actually have to file a claim under Regulation (EC) No 261/2004 — commonly called EU261. The short and uncomfortable answer is this: EU261 does not set a single Europe-wide deadline. The regulation itself is silent on limitation periods, which means the deadline depends entirely on the national law of the EU member state where you file your claim, and those deadlines range from one year to as long as ten years. Getting this wrong can cost you the entire compensation amount, which runs from €250 to €600 per passenger depending on flight distance.

The Direct Answer: No Single Deadline Exists

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Many passengers assume there is one unified time limit for EU261 claims across all 27 member states plus Norway, Iceland, and Switzerland, where the regulation also applies. That assumption is wrong. The Court of Justice of the European Union confirmed in case C-139/11 (Joan Cuadrench Moré v Sol S.A., 2012) that the time limits for bringing EU261 compensation claims are governed by the national law of each member state, subject only to the principle of equivalence — national rules must not make it practically impossible or excessively difficult to exercise EU rights — and the principle of effectiveness.

In practice, this creates a patchwork. If your claim falls under German law, you generally have three years. Under Spanish law, five years. Under Irish law, six years. Under Belgian law, one year — the shortest in the EU. Under French law, five years under the general rules, though airline-linked disputes can be argued under a two-year Montreal Convention-style limit depending on the framing. The United Kingdom, despite leaving the EU, retained EU261 as UK261 and preserved a six-year limitation period under the Limitation Act 1980. Because deadlines differ so sharply, the single most important fact to establish early is the departure or arrival country whose law governs your route and claim.

Why the Deadline Depends on National Law

The logic behind this patchwork comes from how EU261 was drafted. The regulation imposes obligations on airlines — pay €250, €400, or €600 in compensation for qualifying delays, cancellations, and denied boarding — but it delegates enforcement mechanics, including limitation periods, to national courts and national enforcement bodies (NEBs). Each member state designates an NEB responsible for overseeing compliance, and each country applies its own statute of limitations when a passenger sues in court.

The Court of Justice reinforced passenger rights in related rulings such as Sturgeon (C-402/07), which extended compensation to long delays of three hours or more, and Bruxelles Tribunal matters confirming that no EU-level cap on claims exists. But the CJEU has never imposed a unified deadline, and there is no current legislative proposal that would harmonise limitation periods. That matters because a passenger flying from Belgium to Portugal who waits two years may find the Belgian one-year period applied, while an identical claim under Portuguese law (three years) would survive. The 'deadline' question is therefore always a two-part question: which national law applies, and what is that country's limitation period?

Comparison Table: Time Limits by Country

Treat this table as a starting point rather than legal certainty, because courts in several countries have issued conflicting rulings on whether EU261 claims follow general civil limitation periods or the shorter two-year period implied by the Montreal Convention. When in doubt, assume the shortest plausible deadline applies to your route.

Compensation Amounts and Qualifying Conditions Before You Count Days

Before worrying about deadlines, confirm you are actually owed money, because the limitation clock only matters for valid claims. EU261 pays fixed amounts regardless of ticket price: €250 for flights up to 1,500 km, €400 for flights between 1,500 km and 3,500 km (and intra-EU flights over 1,500 km), and €600 for flights over 3,500 km outside the EU. Compensation doubles as a cash alternative to re-routing in specific denied-boarding and cancellation scenarios. For delays, the Sturgeon ruling and subsequent CJEU case law set the threshold at three hours or more arrival delay, and compensation may be halved if the airline re-routes you and the arrival delay at final destination falls between two and four hours depending on distance.

There are important carve-outs. If the airline proves the disruption was caused by extraordinary circumstances beyond its control — severe weather, air traffic control strikes, security risks, hidden manufacturing defects — no compensation is due, though the duty of care (meals, hotel, refreshments after defined waiting times) still applies. Technical defects are usually NOT extraordinary circumstances per CJEU rulings in Wallentin-Hermann (C-549/07) and van der Lans (C-257/14); airlines routinely and incorrectly invoke this defence. The route must also fall within the regulation's scope: any flight departing from an EU airport on any carrier, or any flight arriving in the EU operated by an EU-licensed carrier (or UK carrier under UK261).

Practical Steps to Preserve Your Claim

Start collecting evidence on the day of disruption, not months later. Keep your boarding pass, booking confirmation, and any written notice from the airline about cancellation or delay. Photograph departure boards showing the delay. Ask airline staff for the stated reason in writing or via app notification, because this becomes critical if the airline later claims extraordinary circumstances. Note the actual arrival time at your final destination — that, not the departure delay, determines compensation eligibility. Record receipts for meals, hotels, transfers, and alternative transport, since duty-of-care expenses up to roughly €1,400 (capped by necessity) can be reclaimed even when compensation is denied.

File with the airline directly first: most carriers provide online forms, and they are legally obliged to respond, though response quality varies wildly. If the airline rejects or ignores your claim, escalate to the NEB of the departure country — this is free and creates a paper trail. If that fails, small claims court is an option in most member states, with costs typically between €25 and €150 depending on jurisdiction. Alternatively, a claims company or a service like AI Flight Refunds can handle the paperwork, airline correspondence, and court escalation for a success fee, usually in the range of 20–35% of the recovered amount, charged only if you win. Doing it yourself is free but slower and more labour-intensive; using a service trades part of your payout for convenience and expertise, which makes sense for larger claims, complex cases, or disputes heading to court.

Common Mistakes That Kill Valid Claims

The most common error is waiting too long based on a generous deadline you heard about anecdotally. A British passenger who heard 'six years' and applies that assumption to a flight departing Brussels may discover Belgian law allows only one year. The second mistake is accepting the first rejection. Airlines initially deny a large share of valid claims — industry estimates suggest rejection rates of 50% or more on first submission — often citing extraordinary circumstances without evidence. Rejections are frequently boilerplate and reversible on appeal or by court action.

Third, passengers miscalculate the relevant delay. What counts is arrival time at your final booked destination, including any re-routing, not the departure time. A flight delayed one hour on departure but arriving four hours late qualifies. Fourth, passengers lose their documentation — screenshots of airline apps disappear, and old emails get deleted, so save everything offline. Fifth, some passengers sign airline settlement offers that waive further rights, sometimes accepting vouchers worth far less than cash compensation; you are never obliged to accept travel vouchers instead of the cash amounts EU261 mandates. Finally, do not confuse EU261 compensation with the Montreal Convention's separate regime for baggage and consequential damages — they have different deadlines (two years under Montreal) and different proof requirements.

When to Act: Timing Strategy and the Reform Question

Treat one year as your practical worst-case deadline regardless of jurisdiction, and ideally file within weeks of the flight. Airline records, crew logs, and operational data become harder to contest as time passes, and while courts place the burden of proving extraordinary circumstances on the airline, evidence freshness still helps. If you are near a one-year deadline — relevant for Belgium, Poland, and a few other jurisdictions — prioritise filing immediately, even if only with the airline's online form, since submission typically interrupts or preserves the limitation period depending on national law.

There is also an ongoing reform debate worth monitoring. In 2025, the European Commission proposed revising the Air Passengers' Rights Regulation, and reporting from outlets including AFAR, Forbes, and Euractiv in mid-2026 indicates France and Germany are pushing to reduce compensation entitlements — one floated scenario raises delay thresholds and links payouts more tightly to distance and ticket value. If those proposals survive the legislative process, expected no earlier than 2027–2028, they would change entitlements for flights after the new rules take effect but would not retroactively reduce rights for flights already taken. The practical consequence: a claim for a 2024, 2025, or 2026 flight remains governed by current EU261 amounts and current national limitation periods, which is one more reason to file now rather than wait for a regulatory climate that may turn less passenger-friendly.

Cost, Payout Expectations, and What Services Charge

Filing directly with the airline costs nothing but your time. Going to small claims court in most EU jurisdictions costs between €25 and €150 in fees, potentially recoverable from the airline if you win, plus optional lawyer costs that vary by country. Claims management services, including AI Flight Refunds, typically operate on a no-win, no-fee basis with success fees around 20–35% (plus VAT and, where applicable, legal action fees). For a €600 long-haul claim, that means keeping roughly €390–€470 net. The trade-off is straightforward: services absorb the administrative burden, advance court costs, and have experience countering standard airline defences, which materially raises recovery odds on contested claims. For straightforward, undisputed claims, DIY filing is often the better financial choice; for rejected claims requiring litigation, professional help frequently pays for itself.

Payouts are due in cash (bank transfer or, with your consent, travel vouchers) within a timeframe national law dictates — some countries such as Spain and Italy impose explicit payment deadlines on airlines, while elsewhere you may need to pursue enforcement. Interest on late-paid compensation can be claimed in many jurisdictions, and courts have awarded it.

Bottom Line

EU flight compensation legal deadlines under EU261 range from one year (Belgium, Poland) to six years (Ireland, UK), with three to five years being the most common middle ground. The clock runs under the national law of the jurisdiction governing your claim, and there is no harmonised EU-wide deadline — a gap the CJEU acknowledged in Cuadrench Moré and has left to legislators. Compensation itself is fixed at €250, €400, or €600 by flight distance, survives airline insolvency risk only in limited scenarios, and may be reduced only for genuine extraordinary circumstances. The rational move is to verify eligibility, gather evidence while it is fresh, and file well within one year of the disrupted flight, escalating to the national enforcement body or a claims service if the airline stalls. Given pending reform proposals that France and Germany are backing to trim passenger entitlements, older claims sit under more favourable rules than future flights likely will — which makes filing sooner, not later, the clearly better strategy.