European flight punctuality in summer 2026: record traffic, a mixed delay picture
2 August 2026
EUROCONTROL logged a new record for weekly flights this summer. Here is what the latest punctuality data shows, and what it means for your compensation claim.
Europe's air traffic network keeps growing: according to weekly EUROCONTROL briefings, the week of 29 June–5 July 2026 (Week 27) set a new traffic record of 37,447 flights, surpassing the pre-pandemic 2019 record of 37,228 flights in a single week.
Punctuality: uneven, but better than a year ago
In Week 27, arrival punctuality stood at 71% — up 0.2 percentage points on Week 26 and up 3.2 points on the same week in 2025. By Week 29, the picture had shifted: arrival punctuality slipped to 69% (slightly below the equivalent week in 2025), while departure punctuality actually improved year-on-year to 63%.
Summer-to-date through 19 July 2026, traffic was up 2.0% versus 2025, while total air traffic flow management (ATFM) delays were down 18% — meaning that despite record volumes, the network has on average been running more efficiently than a year earlier. Average ATFM delay per flight was 4.4 minutes (3.8 minutes en-route, 0.6 minutes at the airport).
Individual weeks still spike
In late July, en-route ATFM delays jumped 80% week-on-week, to roughly 137,000 delay minutes per day — 11% above 2025 levels. That illustrates the defining feature of the summer season: even with a positive trend on average, individual weeks of bad weather or localised disruption produce sharp delay spikes.
Weather is the leading cause
EUROCONTROL data shows weather accounted for around 55% of all en-route ATFM delays this summer, concentrated mainly over France, Germany and Austria. This matters for compensation: dangerous weather is one of the few causes EU261 actually recognises as an "extraordinary circumstance" that releases the airline from paying compensation.
What this means for your claim
Weather is the most common reason airlines give for a delay — and also the most frequently disputed: according to the AirHelp report, roughly 52% of airline rejections overall turn out to be unjustified. If your flight was delayed this summer and the notice simply cites "weather" or "technical reasons," it is worth checking whether the airport was genuinely affected that day, or whether nearby flights departed on schedule at the same time. The distinction between an en-route ATFM delay (outside a specific airline's control) and an aircraft's own technical fault (the carrier's responsibility) often gets lost in a vague refusal — and that is usually where a legitimate claim is hiding.
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