Network Operations Report – May 2018

15 June 2018

Traffic in May 2018 increased by 2.9% compared to May 2017 and was in line with the baseline forecast. Nine states added more than 50 flights daily to the network with Greece, Turkey and Spain as the top contributors.

Total ATFM delays increased by 176.5% in May 2018 compared to May 2017. En-route ATFM delays (82,138 min/daily) increased by 283.8% mainly due to weather and ATC industrial action in Marseille ACC. Airport ATFM delays (18,497 min/daily) increased by 23.4% mainly due to weather.

Highlights include:

Amsterdam/Schiphol became a fully operational A-CDM airport on 16 May. It is the first airport to be connected via B2B on first operations and the second to be sending DPI messages via B2B.


  • Nearly 1 million minutes of weather delays throughout the central area of the network in the second part of the month and particularly in Maastricht and Karlsruhe UACs;
  • Over 500,000 minutes of delay due to French industrial action;
  • ATC capacity and staffing issues in Karlsruhe UAC.


  • Seasonal weather impacted operations strongly at Frankfurt/Main and Amsterdam/Schiphol airports, and to a lesser extent at London/Gatwick airport;
  • There were capacity issues at London/Gatwick and Amsterdam/Schiphol airports.

The average en-route ATFM delay per flight in the NM area in May was 2.61 min/flt, which is well above the corresponding monthly guideline value of 0.45 min/flt. The average YTD en-route ATFM delay per flight in 2018 in the NM area is 1.05 min/flt, which is four times the corresponding guideline value of 0.28 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. To stay up-to-date on the latest network performance, subscribe to the Network Operations monthly report.


Network Manager Operational Performance team

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