European Route Network Improvement Plan (ERNIP) - Monitoring Report - AIRAC 2401

ERNIP Monitoring Report 2024 - cover

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.

Potential routes offered

The potential savings offered during AIRAC cycle 2313 compared to the equivalent AIRAC cycle in 2022:

228,000 NMs

flown less

1,300 tonnes

less fuel used

4,500 tonnes

less CO2 emitted



Real-world performance

Based on our filed flight plan indicator, the actual gains calculated during AIRAC 2401 compared to the equivalent AIRAC cycle in 2023 were:

470,000 NMs

flown less

1,600 tonnes

less fuel used

2,800 tonnes

less CO2 emitted



Key reasons

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

  • Weather
  • Airspace availability
  • Industrial action
  • Closed areas in adjacent airspace(s)
  • Capacity issues in the network

For more details, download our monitoring report.