On July 21, 2026, European air traffic saw 54 flight cancellations and 1,724 flight delays affecting countries including Italy, the Netherlands, Switzerland, Hungary, Romania, England, Austria, and Türkiye.
Disruptions at Major European Airports
Leonardo da Vinci Airport (Rome Fiumicino) reported the most extensive disruption with 325 flight delays and 3 cancellations. Amsterdam Schiphol Airport followed with 299 delays and 13 cancellations, while London Heathrow Airport logged 224 delays and 7 cancellations. Zurich Airport experienced 172 delays and 4 cancellations, Vienna Airport had 136 delays and 6 cancellations, and Naples Airport reported 128 delays and 2 cancellations. Bucharest Airport recorded 127 delays and 6 cancellations, all
cancellations attributed to Dan Air. Budapest Airport faced 101 delays and 2 cancellations. Istanbul Sabiha Gökçen Airport was also among disrupted hubs.
Airlines Most Affected on July 21
British Airways accounted for approximately 8.1% of the disruptions, making it the most impacted airline with 138 delays and 6 cancellations mainly at London Heathrow and Edinburgh airports. KLM was the second most affected carrier, responsible for about 7.3% of total disruptions with 120 delays and 9 cancellations spread across Amsterdam Schiphol, Edinburgh, and London City airports. EasyJet experienced 135 delays and 3 cancellations, predominantly at Naples, Edinburgh, Rome, Amsterdam, and Budapest. ITA Airways recorded 131 delays and
2 cancellations, with disruptions centered largely at Rome Fiumicino and Naples airports.
Root Causes of Operational Disruptions
The delays and cancellations on July 21 resulted mainly from aircraft rotations running behind schedule and crew availability issues compounded by congestion at major hubs. Delays triggered cascade effects when aircraft or crew arrivals were late, disrupting subsequent flights across Europe. Ongoing conflicts in the Middle East have altered airspace use and long-haul flight paths, increasing operational complexity. These airspace adjustments have affected aircraft scheduling and reduced network resilience, further complicating recovery efforts during the busy summer travel period.
Impact on Passengers at Key Airports
Thousands of travelers faced disruptions at primary European cities,
including London, Rome, Amsterdam, Zurich, Vienna, Bucharest, Budapest, Naples, Edinburgh, and Istanbul. Passenger schedules at London Heathrow and Edinburgh were most affected by British Airways’ delays. ITA Airways bore the largest operational load at Rome Fiumicino. Wizz Air Malta led delay figures at Bucharest and also saw significant disruption at multiple airports. Austrian Airlines experienced the greatest operational burden at Vienna. Airlines including Ryanair, Volotea, Lufthansa, Swiss, Transavia, German Airways, Vueling, American Airlines, Emirates, Etihad Airways, Eurowings, Air Baltic, Helvetic, Edelweiss Air, Lauda Europe, and Buzz also faced operational stresses that affected flight punctuality and schedules.
