Period Area Update rate Last update Source(s) Data
Jan-Sep (YTD) EUROCONTROL area Quarterly 18-Oct-2017 NM
Please note that software release 20.0 of the Network Manager on 04 April 2016 introduced a change to improve the accuracy of the ATFM delay calculation for operational purposes. For more information on the change in methodology click here.

En-route ATFM delay per flight

EUROCONTROL area

Total en-route delay by reported ATFM delay cause

EUROCONTROL area
In the first nine months of 2017, total en-route ATFM delays in the EUROCONTROL area decreased by 3.8% compared to the same period in 2016. At the same time, the number of flights increased by +4.3%, resulting in an average en-route ATFM delay of 1.0 minutes per flight which is the same level as in the first nine months of 2016.

Although average en-route ATFM delay stayed at a similar level, there was a notable change in the underlying delay reasons. Whereas capacity/staffing and weather related delays increased further in the first nine months of 2017, there was a notable reduction in ATC disruption/industrial actions and events (ATC system upgrades) linked to performance improvements in France.

Share of controlled flights delayed by en-route ATFM regulations (%)


Overall, 90.8% of the controlled flights in the EUROCONTROL area were not affected by ATFM delays between January and September 2017. Compared to 2016, the share of flights affected by en-route ATFM delays increased by 0.6 percent points to 6.1%.
At the same time, the share of flights affected by airport ATFM delays stayed at the same level as in 2016 (3.2%).

En-route ATFM delay by ANSP

Jan-Sep 2017

In the first nine months of 2017, average en-route delay per flight was highest in Cyprus (mainly staffing and capacity related), followed by DSNA/France (capacity, strike and weather related) and Maastricht Upper Area Control Centre/MUAC (capacity and weather related).

Despite the continued increase in traffic in 2017, horizontal flight efficiency improved compared to the same period last year. The efficiency of actual flight trajectories increased from 97.1% in 2016 to 97.3% in 2017.