The International Civil Aviation Organization (ICAO), the UN agency that sets global aviation standards, is pushing for countries to coordinate air traffic flow management, which UN News likens to a city synchronising its traffic lights, according to a UN News report published on 25 October 2026. After five days of talks in Montréal convened by ICAO, governments and industry backed a faster global rollout of the approach, the report says.
How the approach works
UN News explains that aircraft are sometimes held in a circling pattern until a runway is free, and that this does not necessarily signal a fault or bad weather. In crowded skies, a storm, an emergency or a closed route in one place can cause delays thousands of kilometres away. Under air traffic flow management, an airport that cannot take more aircraft can coordinate with others to hold back departures, while airlines, airports, controllers and weather services share information and decide together. UN News says the aim is for passengers to receive earlier warnings of cancellations and delays, and for the system to recover faster after disruption.
ICAO Secretary General Juan Carlos Salazar told UN News: “If the traffic lights work independently, traffic becomes chaos and there are jams on every corner.”
Results so far
The report cites two sets of figures. In the Americas, ICAO-supported collaborative trials saved more than 265,000 minutes of flying time in 2026, about 4,400 hours, along with more than $38.9 million, about 13,330 tonnes of fuel and 42,160 tonnes of carbon dioxide emissions. In Europe, a programme run by EUROCONTROL, the continent’s air navigation body, that anticipates weather and congestion avoided about 3.1 million minutes of delay between May and August 2026, saved an estimated $448 million and made the network 14 per cent more stable on the worst days.
Obstacles ahead
Salazar said Brazil and Colombia have run such systems for years, though mainly at national level. He told UN News that technology alone is not the answer, because information is often not shared, sometimes for lack of will and sometimes for lack of the means to pass it on in real time. A flight from Europe to Australia or New Zealand crosses four or five regions, he said, and needs coordination that does not exist today. The report adds that conflicts force airlines to reroute around danger zones, and that drones, air taxis and rocket launches call for closer coordination. New international flow management rules are due in November 2030, with regional workshops planned for 2027.
Why It Matters
Delays that begin in one corner of the system rarely stay there. UN News cites ICAO figures of nearly five billion passengers on 38 million flights in 2025, with air travel projected to reach 12.4 billion passengers by 2050. The reported savings suggest that shared information can cut waste for airlines and passengers alike, but the gains depend on countries and regions actually exchanging data. The practical test for travellers is whether earlier, clearer warnings reach them.
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