LONDON — A Heathrow drone sighting near Terminal 5 froze every outbound flight at London’s busiest airport for 12 minutes on Tuesday morning. It’s the latest in a string of 2026 airport shutdowns triggered by an unmanned aircraft nobody can locate.
What the Heathrow Drone Sighting Halted
Air traffic control halted all departures at 10:07 BST on Sept. 16 after reports of an unauthorized drone near Terminal 5, according to AIRLIVE. Loganair flight LM622 to Dundee was the last aircraft cleared off runway 27R before the freeze. Meanwhile, British Airways flight BA570 to Milan was the first to depart once operations resumed at 10:19.
Airport authorities and local police swept the surrounding airspace and found no drone; no one has made an arrest. Notably, arrivals continued throughout the stoppage. The 12-minute pause was brief by the standards of past drone incidents at major hubs. However, it still produced knock-on delays across Heathrow’s morning departure bank — one of the busiest schedules of any airport in Europe.
A Detection Gap Heathrow Has Faced Before
Heathrow is not new to this problem. Following a multi-day drone crisis in 2019 that grounded flights for hours, the airport installed a dedicated counter-drone detection system in 2020. The system tracks unauthorized aircraft entering Heathrow’s airspace automatically, rather than relying on eyewitness reports. Tuesday’s incident, however, offers no indication that system — rather than a visual sighting — is what triggered the halt. AIRLIVE’s report instead describes police and airport staff conducting a manual sweep, the same response pattern used at airports with no dedicated technology at all.
That distinction matters. A precautionary ground stop that clears in 12 minutes is a minor operational hiccup. The same pattern repeating at an airport that specifically invested in detection hardware suggests a deeper problem. In other words, confirming what’s actually in the sky before grounding flights hasn’t been solved by hardware alone.
Part of a Wider 2026 Pattern
Heathrow’s brief freeze adds to a run of unresolved airport drone incursions this year. A drone sighting near Málaga Airport’s Runway 12 halted all traffic for nearly an hour in August. Additionally, investigators diverted eight flights and recovered no device. Similarly, a drone hovering 20-25 feet above San Diego International Airport’s control tower triggered a 2.5-hour ground stop weeks later. The stop delayed more than 400 flights. Again, investigators found no radar track and identified no operator. In each case, the response was the same: ground flights first, investigate after, and close the file without an answer.
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Sources
- AIRLIVE. “All departure operations halted at London Heathrow following drone sighting over Terminal 5” (Sept. 16, 2026).
- Evening Standard. “Heathrow installs drone-catching technology after runway shutdown” (2020).
