Zurich Airport recorded 25,071 flight movements in May 2026, a 5.1% increase on the same month last year. This was recorded as European air traffic continued to expand, even as the Iran conflict reshapes long-haul routes and weighs on intercontinental flying.
The figure marks the third consecutive month in which Zurich has posted year-on-year growth since the outbreak of the Iran conflict at the end of February. March and April both came in above their prior-year comparisons, and May has continued that run, according to an analysis by the news agency AWP.
Is this an encouraging sign for the airline sector, which feared that geopolitical disruption would translate directly into a traffic slump?
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Total Flight Movements At Zurich Airport Up 4.1%
The busiest single day of the month was 22 May, the Friday before Pentecost, when 884 aircraft arrived or departed. In the first five months of 2026, total flight movements reached 106,715, up 4.1% compared to the first five months of 2025.
There is, however, a pandemic-era benchmark that Zurich has not yet fully recovered. Despite three months of growth, year-to-date movements still sit 1.6% below the pre-COVID baseline set in 2019. That gap is narrowing. Notably, in April, for the first time this year, monthly movements briefly reached 2019 levels.
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European Traffic Leads; Long-Haul Pulls Back
The composition of the growth matters as much as the headline number. The gains in May were driven overwhelmingly by European routes, while intercontinental flights declined. That split reflects the direct impact of the Iran conflict: carriers have adjusted long-haul schedules and routings to avoid Persian Gulf airspace, raising costs and in some cases cutting frequencies. European short-haul routes, by contrast, are largely unaffected by the conflict and have continued to recover strongly.
For SWISS International Air Lines and other carriers based at Zurich, the pattern creates an uneven business environment. Short-haul yields are healthy and load factors are high, while long-haul operations face higher fuel costs from rerouted flights and softer demand on routes that connect to or overfly the affected region.
