The potential savings offered during AIRAC cycle 2603 compared to the equivalent AIRAC cycle in 2025:
European Route Network Improvement Plan (ERNIP) - Monitoring Report - AIRAC 2603
19 March 2026 - 15 April 2026
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
483,000
NMs
flown less
2,890
tonnes
less fuel used
9,660
tonnes
less CO2 emitted
€
2,416,000
saved
Real-world performance
Based on our filed flight plan indicator, the actual losses calculated during AIRAC 2603 compared to the equivalent AIRAC cycle in 2025 were:
724,000
NMs
flown more
4,340
tonnes
more fuel used
14,470
tonnes
more CO2 emitted
€
3,620,000
spent
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.