Network Operations Report – September 2017

16 October 2017

Traffic in September 2017 increased by 4.5% compared to September 2016 and was above the high forecast. Traffic has shown continuous growth since November 2015. Twelve states each added more than 50 daily flights to the network with Spain, UK and Germany as the top contributors. 

Total ATFM delays increased by 68.9% in September 2017 compared to September 2016. En-route ATFM delays increased by 83.3% mainly due to capacity and weather; airport ATFM delays increased by 49.6%.

Highlights include:

Gran Canaria and Malaga airports became fully operational Advanced ATC Towers on 05 September.


  • Two French ATC industrial actions generated over 120,000 minutes of ATFM delay;
  • High delays in Karlsruhe UAC due to ATC staffing ;
  • Capacity issues in Karlsruhe, Marseille, Brest and Maastricht ACCs;


  • There were capacity issues at both Istanbul airports, London/Gatwick and Amsterdam/Schiphol airports;
  • Seasonal weather impacted Amsterdam/Schiphol, London/Heathrow, Barcelona and London/Gatwick airports.

The average en-route ATFM delay per flight in the NM areai in September was 1.33 min/flt, which is above the corresponding monthly guidelineii value of 0.55 min/flt. The average YTD en-route ATFM delay per flight in 2017 in the NM areai is 1.00 min/flt, which is above the corresponding guideline value of 0.56 min/flt.

The monthly Network Operations Report overview provides a high level view of the performance of the European ATM network, whilst the analysis provides a detailed view. Download previous network performance reports.

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i See Notice on page 4 for more information on NM Area .
ii NM’s calculation that provides the guideline en-route delay (min) requirements to achieve the annual target (0.5 min/flight).

Network Manager Operational Performance team

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