What the ARI measures
The Airline Reliability Index was developed by the Adventus Punctuality team. It weighs delayed and cancelled flights against the total operations analysed to provide passengers with an objective reference.
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The Airline Reliability Index (ARI) assesses airline reliability based on each carrier’s record of significant delays and cancellations.
Lower ARI = higher reliability
Explore ARI Ranking| Airline | Score | ARI |
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The Airline Reliability Index was developed by the Adventus Punctuality team. It weighs delayed and cancelled flights against the total operations analysed to provide passengers with an objective reference.
A higher ARI indicates a greater likelihood of significant delays or cancellations. An ARI of 0 represents a period with none of these disruptions among the operations analysed.
Unlike rankings that only report on-time arrivals, the ARI also considers cancellations and severe delays that directly affect the passenger experience.
Adventus created the ARI to improve transparency and support informed decisions. It has been presented at international conferences, including UN Tourism, and its English name makes it accessible to a global audience.
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