Montreal Convention's Article 17 Defines Airline Injury

Article 17 of the Montreal Convention makes an airline automatically responsible for a passenger's death or injury if caused by an accident on board an aircraft or during boarding or disembarking on an international flight. According to an explainer from Paddle Your Own Kanoo, airlines face strict liability up to 151,880 Special Drawing Rights (SDR), roughly $215,000, even without proof of negligence.

The Scope and Application of Article 17

This international treaty provision does not apply to every flight. Three key elements must align for a claim to succeed. First, the carriage must be international, not purely domestic. Second, the injury must result from an "accident," defined as an unexpected event external to the passenger. A pre-existing medical condition would not qualify. Third, the incident must occur on board the aircraft or during the operations of embarking or disembarking.

All three conditions are mandatory. Courts have interpreted "embarking" broadly. In a 2017 case cited by the source, a Swiss businessman slipped at a British Airways check-in desk at Heathrow. The courts concluded the accident during check-in could be considered part of the embarking process, making the airline liable under Article 17.

The Liability Threshold and Special Drawing Rights

The Montreal Convention sets a compensation threshold in Special Drawing Rights, an international monetary unit based on a basket of major currencies. The original threshold was 100,000 SDR. The International Civil Aviation Organization (ICAO) reviews this limit every five years, and it has been increased twice.

Up to this threshold, an airline is strictly liable. The source explains that "courts can award compensation up to that threshold even if the passenger's injury or death wasn't caused by any negligence on the airline's part." For claims seeking damages above 151,880 SDR, the passenger must prove the airline was negligent or committed a wrongful act. The SDR amount is a ceiling, not an automatic payout; a court determines the final compensation award.

Treaty Background and Global Adoption

The Montreal Convention, formally known as the Convention for the Unification of Certain Rules for International Carriage by Air, was signed on May 28, 1999, and entered into force on November 4, 2003. It was created by ICAO to replace a confusing "liability lottery" stemming from the old Warsaw Convention of 1929 and its various amendments. The newer treaty also modernized industry practices by permitting electronic tickets.

Article 17 only applies to travel between countries that are parties to the Convention. As of December 2025, there are 141 signatories, including the United States, the United Kingdom, the European Union, China, and Japan. Some nations, however, are not parties. Afghanistan, Algeria, and Belarus have not signed. Others, like Antigua and Barbuda and the Bahamas, signed in 1999 but never ratified the treaty, so it is not legally effective there. For travel between non-signatory countries, passengers must rely on older international laws or domestic legal frameworks.