Understanding how airline liability works is the first step, because compensation may be available where an accident on board the aircraft, or during the operations of embarking or disembarking, caused a passenger's injury or death. This is the core rule in Article 17 of the Montreal Convention, given legal effect in Ireland by the Air Navigation and Transport (International Conventions) Act 2004. Because a flight injury runs under a treaty rather than the ordinary rules that govern most claims, the deadline, the burden of proof, and the choice of court all differ from a road or workplace claim. This guide explains how a plane accident claim in Ireland actually works, and the single most important difference is time: the two-year limit is generally absolute, so it is dealt with before anything else.

What the Montreal Convention Is and Why It Governs Flight Injury Claims

The Montreal Convention 1999 is the international treaty that governs airline liability for passenger injury on international flights. Formally the Convention for the Unification of Certain Rules for International Carriage by Air, it was signed at Montreal on 28 May 1999 and modernised the older Warsaw Convention system. Ireland is a contracting state, and the treaty was given the force of law here by the Air Navigation and Transport (International Conventions) Act 2004. At EU level, Regulation (EC) No 2027/97, as amended by Regulation (EC) No 889/2002, applies the Convention's rules to EU air carriers, including on many domestic segments.

The Convention applies to international carriage, broadly meaning a journey where the agreed place of departure and place of destination are in two different states that are party to the treaty, or a round trip with an agreed stop in another state. Where the Convention applies, it is the exclusive route to compensation: Article 29 provides that any action for damages, whether framed in contract, tort or otherwise, can only be brought subject to the conditions and limits of the treaty, and purely non-compensatory damages are excluded. In practical terms, a passenger cannot sidestep the treaty by suing the airline in ordinary negligence instead.

Serious aviation incidents in Ireland are rare, which is part of why the legal framework is not widely understood. The Irish Aviation Authority's 2024 Annual Safety Performance Review recorded 13,439 occurrence reports across more than 756,000 flights by Irish-approved carriers, and just one non-fatal accident involving Irish aircraft that year, which was a passenger fall from airstairs. That single accident is a useful illustration: falls while boarding or leaving an aircraft are exactly the situation the Montreal Convention is built to address.

When You Have a Claim: the "Accident" Test and the Scope of Embarking or Disembarking

Liability under Article 17 depends on an "accident", which has a specific legal meaning, not simply any injury that happens on a flight. The widely applied test, drawn from international case law interpreting the identical treaty wording, is that an accident is an unexpected or unusual event or happening that is external to the passenger. An injury with a purely internal cause, such as a heart attack or a reaction to sitting still on a long flight, is generally not an accident unless some external event or a failure by the airline caused or contributed to it.

Events that have been accepted as accidents in cases applying the Convention include severe or unexpected turbulence, luggage falling from an overhead bin, a collision with a service trolley, and scalding from a hot drink served on board. The Court of Justice of the European Union considered exactly such a scenario in Niki Luftfahrt (GN v ZU, Case C-532/18, 19 December 2019), where a child was scalded by coffee that tipped over for unknown reasons, and defined an accident as an unforeseen, harmful and involuntary event, with no need for any link to a hazard typical of aviation. Irish reported case law specifically on the meaning of "accident" for passenger injury is limited, so persuasive guidance comes from the CJEU and from other jurisdictions applying the same words.

The boundary question of embarking and disembarking has itself reached the CJEU. In JR v Austrian Airlines (Case C-589/20, 2 June 2022), a passenger fell on a mobile disembarking stairway for no ascertainable reason while carrying her young child, and the Court held that this was an accident under Article 17, even though the stairs were not defective or slippery. The Court added that a passenger's failure to hold the handrail may count as contributory negligence under Article 20, reducing the award. The case is directly relevant to the falls on aircraft steps that make up many Irish flight-injury claims.

Some injuries are generally not "accidents", even though they happen during a flight. Because the event must be external to the passenger, the following have generally not qualified on their own:

• deep vein thrombosis, sometimes called economy-class syndrome, when it results from ordinary immobility rather than any external event;
• a passenger's own internal medical episode, such as a heart attack or stroke, with no external trigger and no failure by the airline;
• injury from the ordinary, expected operation of the aircraft, such as routine deceleration on landing or the effects of normal cabin pressure. In YL v Altenrhein Luftfahrt (Case C-70/20, 12 May 2021) the CJEU held that a hard landing within the aircraft's normal operating range is not an accident, judged from the airline's operating standards rather than the passenger's perception.

The line can move where the airline's own act or omission is part of the chain, for example an unusual refusal to help a passenger in difficulty. The distinction is fact-sensitive, which is why early advice matters.

The treaty also has a spatial boundary. It covers the passenger while on board and during the operations of embarking or disembarking, which generally includes the jet bridge and mobile aircraft steps immediately before boarding or after leaving the aircraft. At larger Irish airports such as Dublin and Shannon this often means an enclosed jet bridge, while at smaller airports or remote stands passengers frequently use mobile steps exposed to wind and rain. Once a passenger has reached a public, unrestricted part of the terminal, an injury there usually falls outside the treaty and is treated as an ordinary premises injury against the airport operator instead. Exactly where that boundary sits is fact-dependent, and is examined further below.

An "accident" under Article 17 is an unexpected or unusual event or happening that is external to the passenger. Severe turbulence, falling luggage, trolley strikes and scalding hot drinks have been treated as accidents; a purely internal medical event, without any external trigger, generally has not.

Summary of the Article 17 "accident" test as applied in Convention case law.

The Two-Year Rule, and Why Aviation Claims Are Different from Every Other Injury Claim

Under Article 35, the right to damages is extinguished if proceedings are not brought within two years, and that deadline is generally absolute. The two years run from the date the aircraft arrived, the date it ought to have arrived, or the date the carriage stopped. Unlike the ordinary Irish position, there is generally no "date of knowledge" extension and no judicial discretion to extend the period. The method of calculating the two years is a matter for the court hearing the case.

This is the single biggest trap in aviation claims, because the ordinary rules that many people expect simply do not apply in the same way. For most routes to compensation for injury in Ireland, the two-year clock can, in limited situations, be measured from a later date of knowledge or suspended while a claimant is a minor. Aviation claimants who assume the same flexibility can lose the right to sue entirely. Our guidance on personal injury time limits sets out the ordinary regime that this treaty rule departs from.

Compensation Under the Montreal Convention: the Two-Tier Structure and Current Limits

The Convention uses a two-tier liability system for death or bodily injury under Article 21. In the first tier the airline is strictly liable: the passenger does not have to prove fault, only that a qualifying accident caused the injury, and the airline cannot avoid this tier by showing it was careful. Above a defined financial threshold, the second tier applies, and the airline can limit its liability by proving that the damage was not due to its negligence or wrongful act, or was caused solely by a third party. Contributory fault by the passenger, under Article 20, can still reduce an award, for example where a seatbelt was not worn during turbulence.

The financial threshold is expressed in Special Drawing Rights (SDR), a unit maintained by the International Monetary Fund, and is reviewed for inflation roughly every five years. Following the most recent review, the first-tier threshold for death or bodily injury rose to 151,880 SDR for incidents on or after 28 December 2024, up from 128,821 SDR. Because SDR values move against the euro daily and the figure is periodically revised, any exact euro amount should be confirmed at the time of the claim.

Airport Injuries: When It Is Public Liability, Not an Airline Claim

Injuries inside the airport terminal are usually ordinary premises claims against the airport operator, not Montreal Convention claims against the airline. A slip in a terminal concourse, a fall on an escalator, or an incident in the baggage reclaim hall generally falls outside the treaty's "on board or embarking and disembarking" scope, and is dealt with under ordinary occupiers' and public liability law. Our public liability claims guidance covers that route, and the Occupiers' Liability Act 1995 is the statute that usually governs terminal premises.

Which regime applies can decide who you can sue and where. In Crotty v SAS AB and Swedavia AB [2021] IEHC 394, a passenger slipped on ice while disembarking at a Swedish airport and sued both the airline and the airport operator in the Irish High Court. Butler J held that the Irish court had jurisdiction over the airline under the Convention, but struck out the claim against the airport operator for want of jurisdiction, because the airport was not an air carrier and the Convention did not apply to it. Jurisdiction over the airport was instead governed by the general domicile rule in the Brussels Recast Regulation, which pointed to Sweden. The case is a clear warning that identifying the right defendant, and the right legal framework, has to happen at the outset.

The exact point where "embarking or disembarking" begins and ends is not fixed, and the Irish courts have said so. In Crotty the High Court expressly noted the grey area around the meaning of disembarking. Where a case is not clearly on board or clearly in the public terminal, courts applying the treaty weigh four factors to decide whether the passenger was within the operations of embarking or disembarking:

1. the degree of control the airline was exercising over the passenger at the time;
2. the passenger's physical proximity to the aircraft;
3. what the passenger was doing when injured; and
4. how imminent boarding was.

Applying those factors, injuries on the jet bridge or on mobile aircraft steps have generally been treated as within the treaty, while an injury in the general terminal, where a passenger is free to move around before a boarding call, has generally been treated as outside it. Cases on airline-directed transfer buses have gone both ways, so a bus injury is fact-dependent rather than automatically covered. Because the boundary turns on the specific facts, the regime that applies, and therefore the correct defendant, should be assessed early.

Where You Can Bring Your Claim: Jurisdiction for Irish Residents and Visitors

Article 33 sets out the places where a Convention claim can be brought, and one of them is powerful for Irish residents. The general options include the courts of the state where the airline is domiciled or has its principal place of business, the place where the contract was made, and the place of destination. In addition, for death or injury claims, a passenger may sue in the state of their principal and permanent residence, provided the airline operates services to or from that state and has a business presence there. This residence-based forum lets an Irish resident injured on a foreign airline abroad bring proceedings in the Irish courts rather than travelling overseas to litigate.

Within Ireland, the value of the claim decides which court hears it. As the law stands, personal injury actions up to €15,000 fall within the District Court, claims between €15,000 and €60,000 within the Circuit Court, and claims above €60,000 within the High Court. Aviation claims are not automatically High Court matters, though serious injury and fatal claims often reach that level, and the international-law issues can make the High Court the practical venue. Our guidance on Circuit Court versus High Court jurisdiction explains how the threshold works. As Crotty shows, the treaty confers Irish jurisdiction over the airline, but not automatically over other defendants such as a foreign airport operator, whose position is governed by separate EU jurisdiction rules.

These thresholds are set to change. The Civil Reform Bill 2025, published in January 2026, proposes raising the District Court limit to €20,000 and the Circuit Court personal injuries ceiling to €100,000, which would move many mid-value claims down from the High Court. The Bill was not yet enacted as of mid-2026, so the figures above remain the operative limits until it commences.

Flight Delay Compensation Is Not Injury Compensation

EU flight-delay rights and Montreal Convention injury claims are different things, on different rules. Regulation (EC) No 261/2004 provides fixed sums for denied boarding, cancellation and long delay. It is a consumer-rights scheme about disruption, not a personal injury regime, and receiving delay compensation neither reflects nor limits any injury claim. A claim for a bodily injury caused by an on-board accident runs under the Montreal Convention and its two-year deadline, entirely separately from any EU261 entitlement. Citizens Information's overview of airline liability is a useful plain-English starting point on passenger rights generally.

Fatal Aviation Accidents

Where a passenger dies, the Montreal Convention governs the airline's liability, and Irish law governs who can claim and for what. The treaty's two-tier structure and two-year deadline apply to a fatal claim in the same way, but the mechanics of a dependency claim and any mental distress payment are dealt with under Irish fatal-injury law. Our guidance on fatal injury claims explains how dependants claim and how such awards are structured. Because of the strict deadline and the sensitivity involved, early advice is particularly important in fatal cases.

Evidence and Practical Steps After a Flight Injury

Aviation claims turn on contemporaneous evidence that links the injury to a specific on-board event. Reporting the incident to cabin crew at the time, and asking for a copy of the airline's incident report or Passenger Irregularity Report, creates a record close to the event. Prompt medical attention matters both for recovery and because the notes connect the injury to the flight. The list below sets out the evidence that typically supports an aviation claim.

• The airline incident report or Passenger Irregularity Report, requested from cabin crew or the airline.
• Medical records from the GP, emergency department, and any treating consultants, showing the injury and its timing.
• Your boarding pass, ticket, and booking confirmation, which establish the carriage and the route.
• Witness details from fellow passengers and, where possible, crew.
• Photographs of the injury and the immediate scene, and any relevant seat or cabin details.
• Receipts for medical costs, travel, and other out-of-pocket expenses.
• Employment and earnings records where time off work is involved.

Travel insurance often reimburses medical costs first, but it does not replace a liability claim against the airline, and an insurer may have its own recovery rights. In straightforward cases a claimant may deal with the airline directly, but given the strict deadline and the treaty framework, advice before making formal contact is sensible in anything but the simplest situation.

What Do Injured Passengers Most Often Ask About Aviation Claims in Ireland?

The rules above resolve most situations, but a few recurring questions decide whether someone injured on a flight actually understands their position. The answers below cover the practical points that come up most often for aviation and flight injury claims, from turbulence and the two-year deadline to which court hears the case and what happens when the injury was in the terminal rather than on the plane.