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Airports across the UK are still cancelling and delaying flights on 9 September after a major air traffic control systems fault, with London’s biggest hubs and several regional airports warning passengers of ongoing disruption.
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Major hubs in London still experiencing disruption
Publicly available airport and aviation data on 9 September indicate that London’s main airports remain among the worst affected following the air traffic control issue that began on 8 September. Heathrow, Gatwick, Stansted, Luton and London City all continue to report cancellations and extended delays as airlines work through aircraft and crew displaced during the outage.
Coverage from UK and international outlets shows that Heathrow, the country’s busiest airport, saw hundreds of flights disrupted on 8 September and is still cancelling and retiming services while schedules are reset. Passengers are being advised to travel to the airport only once their airline has confirmed that their flight is operating.
Gatwick has also reported a significant number of cancellations since the incident, with data compiled by independent timetable analysts suggesting that well over 200 flights have been cancelled so far this month, many clustered around the day of the air traffic control failure. Knock-on delays averaging around half an hour are still being reported on 9 September as airlines try to recover regular operations.
London Stansted, Luton and London City, while smaller than Heathrow and Gatwick, continue to appear on disruption lists published by national broadcasters and regional media. These airports serve a high proportion of short-haul and low-cost services, which are particularly vulnerable to cascading delays when aircraft and crews are in the wrong place.
Regional England airports dealing with knock-on delays
Outside the capital, major English airports such as Manchester, Birmingham, Bristol and Newcastle are still suffering residual disruption. Reports compiled since the systems fault show that these airports all experienced cancellations and long delays on 8 September and have continued to see irregular operations into 9 September as schedules are gradually rebuilt.
Manchester, one of the country’s largest hubs for both leisure and business traffic, is highlighted in several disruption trackers as facing ongoing delays on domestic and European routes. Flight information boards on 9 September show a mix of on-time services alongside late departures and arrivals, reflecting the difficulty airlines face in resynchronising their networks.
Birmingham and Bristol have issued public updates warning that some services remain affected and that passengers should check live status before travelling. In both cases, the majority of flights are now operating, but gaps in the timetable and clusters of delayed departures remain visible, particularly on carriers that saw heavy disruption the previous day.
Newcastle, Leeds Bradford and East Midlands are also listed among airports still experiencing problems, although on a smaller scale than the big London and Manchester hubs. Many of the remaining issues at these airports relate to aircraft arriving late from more severely affected airports, causing rolling delays through the day.
Scottish and Welsh airports not yet back to normal
The impact of the air traffic control failure has extended across the UK, with Scottish airports in particular still dealing with the after-effects. Edinburgh and Glasgow, both identified in national coverage as being hit by the original outage, continue to report cancellations and delays on 9 September, especially on flights linking to London and other English hubs.
Public flight-tracking data and local media reports indicate that Edinburgh saw several hours of disruption on 8 September and is still experiencing extended turnaround times as aircraft arrive late and crews reach their legal working limits. Some domestic flights to and from England remain cancelled or retimed, contributing to crowding in terminal areas at peak periods.
Glasgow and Aberdeen are also referenced in disruption roundups as facing lingering delays, though with fewer outright cancellations than seen at the height of the incident. On some routes, schedules are being thinned temporarily to free up aircraft, which may mean fewer frequency options for travellers over the coming days.
In Wales, Cardiff Airport has appeared in several lists of affected UK airports. While the scale of disruption is smaller than at the largest hubs, some services are still operating off-schedule, particularly those dependent on aircraft positioning from English airports that were heavily impacted.
Smaller airports and holiday gateways also impacted
The disruption is not limited to major city hubs. Lists compiled by broadcasters and regional newspapers on 9 September show that a broad spread of smaller UK airports continue to see irregular operations. These include Southampton on the south coast, Exeter and Newquay in the southwest, and Humberside and Teesside in the north of England.
Several of these airports rely on a limited number of based aircraft and tight turnaround times, so any delay or cancellation at a larger hub can quickly ripple through the day’s schedule. Some routes are operating with substantial delays rather than being cancelled outright, which can still significantly affect traveller plans, particularly for those connecting onward.
Holiday-focused airports such as Bournemouth and Liverpool have also appeared in disruption summaries, with services to popular European leisure destinations among those affected. Airlines focused on short-haul point-to-point flying are working to re-time rotations and, where necessary, consolidate lightly booked flights to free up aircraft for stranded passengers.
Industry analysis suggests that it may take several days before these smaller airports see a complete return to normal patterns, particularly where aircraft and crews must be repositioned from overseas or from heavily disrupted London bases.
Passengers urged to monitor flights and understand rights
Travel industry briefings and consumer-rights organisations stress that knock-on disruption is likely to continue beyond 9 September as airlines and air traffic managers work through the backlog. The scale of the air traffic control systems fault, which led to hundreds of cancellations and widespread delays on 8 September, means that aircraft and crew schedules remain out of sync across multiple airlines and airports.
Airlines are publishing rebooking options, refunds and, in some cases, hotel accommodation for stranded passengers in line with UK261 regulations, although expert commentary notes that the underlying cause of the disruption is likely to be treated as an extraordinary circumstance. This would generally limit eligibility for fixed cash compensation, even where delays have stretched to many hours.
Travel specialists advise passengers with flights over the coming days to keep checking airline apps and airport websites for the latest information and to avoid travelling to the airport until a specific service is shown as operating. For those whose flights are cancelled, publicly available guidance suggests requesting either a refund or re-routing at the earliest opportunity, and retaining receipts for any reasonable extra expenses incurred.
Analysts also highlight that while the immediate technical issue has been resolved, the event has renewed scrutiny of the resilience of UK air traffic control infrastructure and its ability to cope with peak-season traffic. Industry groups expect a detailed review of the incident and its causes, but for now the priority remains restoring stable schedules across all affected airports.
Full list of UK airports still reporting disruption – LBC
Analysis of UK flight disruption from latest NATS failure – OAG