European Route Network Improvement Plan (ERNIP) - Monitoring Report - AIRAC 2105

ERNIP Monthly report cover
ERNIP monitoring report background image

Our monthly European route network implementation plan (ERNIP) monitoring report provides an overview of the airspace design improvements applied by States during the past AIRAC cycle and an analysis of their potential and real world effects.

Highlights for AIRAC 2102


airspace improvement measures in AIRAC 2007 coordinated with the EUROCONTROL Network Manager


implementing entities

Potential routes offered

The potential route length offered extended during AIRAC cycle 2105:

867,000 NMs

flown more vs equivalent 2020 AIRAC cycle

5,200 tonnes

fuel used

17,000 tons

CO2 emitted



Real-world performance

Based on our filed flight plan indicator, the actual losses calculated during AIRAC 2105 were:

945,000 NMs

flown more compared to shortest available route

5,700 tonnes

more fuel used

19,000 tons

more CO2 emitted



Key reasons

Potential causes having an impact on flight planning/ airline choices: 

  • Weather
  • Industrial action
  • Closed areas in adjacent airspace(s)
  • Regulations applied due to capacity problems in the network

Note: The data of AIRAC 2105 report are significantly disrupted by the COVID-19 crisis. Traffic continues to progress between 40%~50% of last year’s levels, still around 50% - 60% fewer flights in the NM area compared to 2019. Therefore, the statistics/ results might not be as reliable and accurate as usual.

For more details, download our monitoring report.


EUROCONTROL Monitoring Report - AIRAC 2105