{"@context":"https://schema.org","@type":"DefinedTerm","name":"Slot Grandfathering","description":"Slot grandfathering gives airlines the right to reclaim a time window at a coordinated airport in the next equivalent season, provided they operated it with sufficient regularity in the current one. The principle functions as a form of property right: historical usage establishes a vested entitlement that takes precedence over new applicants competing for the same slot. For major network carriers, grandfathered slots at congested hubs represent significant commercial assets, sometimes valued at ","inDefinedTermSet":{"@type":"DefinedTermSet","name":"Frachtportal Logistics Glossary","url":"https://www.freight-academy.com/en/glossary"},"url":"https://www.freight-academy.com/en/glossary/slot-grandfathering","inLanguage":"en","dateModified":"2026-06-26T18:46:32.846685","citation":"https://www.iata.org/en/policy/slots/slot-guidelines/","markdownMirror":"https://www.freight-academy.com/api/md/glossary/en/slot-grandfathering","provider":{"@type":"Organization","name":"Frachtportal","url":"https://www.freight-academy.com"},"quickSummary":"Slot Grandfathering · Slot grandfathering gives airlines the right to reclaim a time window at a coordinated airport in the next equivalent season, provided they operated it with sufficient regularity in the current one. · Quelle: https://www.iata.org/en/policy/slots/slot-guidelines/"}