More than 2,000 flights were cancelled following an air traffic control system failure that caused widespread travel disruption across UK airports, according to air traffic control provider Nats. Nats chief executive Martin Rolfe has been given a week to report back on the reasons for the technical failure, which grounded hundreds of thousands of passengers over a two-day period.
Airport Chaos and Lost Luggage at Heathrow
Passengers faced severe delays, lost baggage, and inadequate communication during the disruption at major transport hubs. Daniel Garrick, a 32-year-old software engineer scheduled to leave Heathrow for Austin, Texas, described spending seven hours on the asphalt before being released into terminal chaos. According to Garrick, baggage reclaim was absolute chaos and screens showed the area was closed. British Airways sent a mass email apology around 9pm on Tuesday and automatically rebooked him for a flight 48 hours later, leaving him to cover more than £100 in Uber fares to stay with a contact in Surrey.
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Diverted Flights and Stranded Passengers Abroad
International travelers experienced unexpected diversions and cancellations without prior notice from their carriers. Melanie Thompson, a 71-year-old interdisciplinary artist returning from Tokyo, stated that her 14-hour flight was diverted to Edinburgh instead of landing at Heathrow due to IT problems. Thompson noted that passengers were left to their own devices to secure accommodation, eventually finding a flat for £500 after local hotels and Airbnbs filled up. Meanwhile, Thomas Reilly, a 55-year-old geopolitical adviser, arrived at Marrakech airport only to find his flight to Gatwick cancelled without prior notice from British Airways. Reilly reported that customer service phone lines were too busy to take calls, leaving him to pay out of pocket for an extra two nights in a hotel.
Airline Responses and Schedule Recovery
A spokesperson for British Airways stated that the airline has rebooked more than 60,000 customers onto alternative flights and operated nearly 80% of its schedule across the network, adding that the issue was entirely out of their control. Similarly, Keith Sessions, a 74-year-old computer engineer scheduled to fly to Tahiti via Los Angeles, experienced a five-and-a-half-hour delay on the tarmac before his Virgin Atlantic flight was cancelled. Sessions stated that communication from Virgin was diabolical and that he incurred extra taxi and seat reservation costs totaling £340. A Virgin Atlantic spokesperson offered a sincere apology to customers for the widespread disruption and acknowledged the frustration caused by the changes.
Frequently Asked Questions
What caused the airport disruptions across the UK?
According to Nats, the disruption was triggered by an air traffic control system failure, which was fixed within hours on Tuesday, though residual delays continued into Wednesday.

Who is investigating the technical failure?
Nats chief executive Martin Rolfe has been given a week to report back on the specific reasons for the technical failure.
What compensation or rebooking options are airlines providing?
Airlines such as British Airways and Virgin Atlantic have rebooked tens of thousands of passengers onto alternative schedules while offering apologies for the disruptions, though many travelers reported paying upfront for interim hotels and transport.