“The methodology of the Airline ImPax Report is sound and the data comprehensive. Delays are organised using logical segmentation, which humanises the scope of the disruption data, making it highly useful and actionable for the aviation industry.”

Henry Harteveldt, President, Atmosphere Research Group

Latest: September 2026

This month's report analyses the disruption data of 248 airlines totalling 587,740 disrupted flights, across 2,766,769 planned flights, globally.

September saw global aviation move beyond the summer peak, with flight volumes easing by almost 10% as seasonal demand began to fall. Disruption remained widespread, however, driven by a varied mix of operational pressures. Europe faced significant ATC disruption, industrial action and volcanic activity, while severe weather impacted networks across North America and APAC. LATAM also experienced weather-related disruption, including significant thunderstorms affecting Mexico City operations. Typhoon activity caused further disruption across Asia, while geopolitical instability continued to affect the Middle East. Rather than one defining event, September was characterised by multiple, overlapping sources of disruption across the global network.

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