For Week 34 (18-24 August 2025):
Traffic: During Week 34, there were 35,491 daily flights, slightly above the previous week, +4% vs 2024, and +1% vs 2019 levels.
ATFM delays: Averaged 3.3 minutes per flight — equal to the previous week, and 20% lower than in 2024. A total of 54,783 flights were delayed by air traffic flow management (ATFM) restrictions, an average of 7,826 flights a day, and 22% of all flights.
Arrival punctuality: Up 0.7 percentage points vs Week 33 to 74%, and better than last year by 4.4 percentage points.
Network hot spots:
- France (27% of all delays in the network): Affected by ongoing capacity, staffing issues and weather.
- Greece (14% of all delays in the network): Affected mostly by staffing and technical issues related to radio frequency problems.
- Spain (13% of all delays in the network): Affected by capacity issues related to high demand and weather.
Network Operations Plan (NOP) delivery:
- With 3.9% year-to-date traffic growth, en-route ATFM delay so far is 26% better than 2024, with good delivery by all air navigation service providers (ANSPs) in South-East Europe, Central Europe, Italy and Switzerland.
- Most ANSPs are delivering the agreed capacity.
- However, Marseille Area Control Centre (ACC) did not fully provide the capacity planned in the NOP (generating 120K delay minutes).
Actions to be taken: Brest, Marseille, Reims and Beograd ACCs will need to revise their plans to align with the NOP for the upcoming weeks. The implementation of capacity management scenarios by EUROCONTROL’s Network Manager Operations Centre (NMOC) will be further amplified and, in this context, the proactive support of all ANSPs will be further requested.
Weather: Convective weather affected significant parts of the network during the week. The scenarios pre-agreed between the ANSPs and the EUROCONTROL Network Manager (NM), moving traffic away from areas of forecasted convective weather, saved 61K minutes of delay across the week, 23% of the total weather delay in Week 34.
Industrial actions: The ongoing industrial action at Beograd ACC resulted in 49K minutes of ATFM delay during Week 34, 6% of the total ATFM delay for the week, which is of a similar order of magnitude as during the other summer weeks, when such delays were related to capacity and weather issues in the context of sustained traffic growth in August.