Period Area Update rate Last update Source(s) Data
Jan-Jun (YTD) EUROCONTROL area Quarterly 14-Jul-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


Total en-route delay by reported ATFM delay cause

In the first half of 2017, total en-route ATFM delays in the EUROCONTROL area decreased by 28% compared to the same period in 2016. As a result, average en-route ATFM delay per flight decreased from 0.92 to 0.64 in the first six months of 2017.

Whereas capacity related delays increased further in the first half of 2017, there was a notable reduction in ATC disruption/industrial actions and events (ATC system upgrades) mainly linked to performance improvements in France (ATC strikes and ERATO implementation in France in 2016).

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

Overall, 95.3% of the controlled flights in the EUROCONTROL area were not affected by ATFM delays in the first half of 2017. Compared to 2016, the share of flights affected by en-route ATFM delays decreased by 2.2 percent points to 2.3%.
At the same time, the share of flights affected by airport ATFM delays decreased from 3.0% in 2016 to 2.4% in the first half of 2017.

En-route ATFM delay by ANSP

Jan-Jun 2017

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

Despite the continued increase in traffic in the first half of 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.