Technical issue at NATS causes UK-wide flight delays from Manchester

Travellers flying from Manchester Airport on 8 September 2026 are facing disruption and lengthening delays after a technical issue in the UK’s air traffic control system began affecting departing flights across the country.

Nationwide technical fault hits departures from Manchester

According to publicly available information from National Air Traffic Services (NATS) and multiple news outlets, a fault in the flight processing system used to manage outbound traffic triggered restrictions on departures at major UK airports on Tuesday afternoon. The problem has affected Manchester Airport alongside Heathrow, Gatwick, Stansted and several regional hubs, leading to queues at departure gates and aircraft held on the ground.

Manchester Airport’s owner, Manchester Airport Group, has been cited in published coverage confirming that flights from Manchester, London Stansted and East Midlands have all been affected by the issue. Reports indicate that while UK airspace remains open, the rate of departures has been reduced to maintain safety, creating a growing backlog of aircraft waiting for take off slots.

Initial indications from NATS describe the issue as a technical fault within its flight processing system rather than a wider systems failure. Engineers are reported to be working to restore normal operations, but the knock-on effect on schedules is expected to persist into the evening as airlines attempt to reprogramme aircraft and crews.

Travel-focused reports specific to Manchester suggest that passengers are experiencing extended waits at security and boarding areas as departure times are repeatedly revised. Some flights have been delayed for several hours, while others have been cancelled where aircraft and crews can no longer operate legally within duty-time limits.

Major UK airports report delays and cancellations

The disruption is not confined to Manchester. Published reports from Reuters, the BBC and other outlets state that hundreds of departing flights from Heathrow, Gatwick, Manchester and Stansted have been affected, with delays and cancellations also reported at Birmingham, East Midlands and Edinburgh. Flight-tracking data from platforms such as Flightradar24 shows a marked slowdown in departures from airports across England and Wales as the fault unfolded.

Airports including Heathrow and Gatwick have acknowledged the impact in public statements, noting that departing flights are subject to restrictions while the technical issue is resolved. Coverage indicates that arriving flights are generally less affected, although congestion on the ground and limited stand availability are starting to create operational challenges for inbound services as well.

Regional media in the Midlands report that Birmingham and East Midlands airports temporarily grounded departures earlier in the afternoon, describing the problem as one that is affecting a significant number of outbound flights across the country. As operations gradually restart, those airports are warning that recovery will take time due to aircraft and crew being out of position.

Irish and European airports are also experiencing knock-on effects. Dublin Airport has reported delays to flights departing to and from the UK, while low-cost and network carriers with extensive UK schedules are adjusting operations across their networks. Some short-haul services are being turned back or diverted, and aircraft rotation plans are being reworked to minimise further disruption.

Slow recovery expected as NATS works on flight processing fault

Recent updates from NATS, as quoted in multiple outlets, state that the organisation has identified the issue in its flight processing system and is working urgently to restore normal service. While some departures have continued, they are being managed under tighter constraints, meaning that airports such as Manchester cannot operate at their usual capacity.

Sector analysts note that even once the immediate technical fault is corrected, the process of recovery is likely to extend into the night and potentially into the following day for some airlines. Flight schedules operate in tight sequences, and a period of several hours of significantly reduced departures can leave aircraft and crews out of position, particularly at busy hub airports.

Published aviation commentary references previous disruptions involving NATS, including a major flight plan processing failure in 2023 that led to extensive cancellations across UK airspace. Following that incident, the UK Civil Aviation Authority called for a review of contingency planning. Today’s event is expected to prompt renewed scrutiny of resilience measures around critical air traffic control systems.

For Manchester specifically, the backlog of delayed departures is likely to create evening peaks in both airfield and terminal activity. Airlines may opt to prioritise longer-haul or tightly connected services, leaving some shorter regional flights at greater risk of cancellation if slots cannot be secured before night curfews or crew duty limits are reached.

Advice for passengers travelling via Manchester Airport today

Travel consumer guidance and airline advisories are urging passengers due to fly from Manchester and other affected UK airports today to check their flight status directly with their airline before heading to the airport. Airline websites and mobile apps typically provide the most up to date departure information, including gate changes, revised timings and any options for rebooking or refunds.

Given the scale of the disruption, passengers may find that their flight status changes repeatedly over the course of the afternoon and evening. Industry commentators recommend allowing additional time at the airport if travel remains essential, while also being prepared for extended waits at check in, security and boarding as terminals absorb high numbers of delayed travellers.

Standard advice in these situations is for passengers to keep digital boarding passes and contact details up to date so that they can receive push notifications from their airline. Those with onward connections, particularly on separate tickets, are encouraged to review alternative routings or overnight options in case missed connections cannot be reprotected automatically.

Travellers whose flights are cancelled may be entitled to re-routing or refunds under UK air passenger rights regulations. However, as with previous air traffic control issues, compensation may depend on whether the disruption is deemed beyond the airline’s control. Passengers are advised to retain receipts for any essential expenses and to keep records of communications with their carrier.

What this means for upcoming trips through Manchester

While the current technical fault is centred on 8 September 2026, the after-effects could ripple into subsequent days for travellers using Manchester Airport. Aircraft and crews that are unable to reach Manchester tonight may leave gaps in tomorrow’s schedules, particularly for early-morning departures that rely on overnight positioning flights.

For travellers with flights in the coming 24 to 48 hours, published travel advice suggests monitoring booking management tools closely, as airlines may proactively adjust departure times to restore resilience to their programmes. Some carriers may consolidate lightly booked services or switch aircraft types to better match available capacity with demand as the system stabilises.

Frequent travellers through Manchester also point out that rail and long distance coach services can fill quickly when aviation disruption occurs, so those considering switching to ground transport are encouraged to book early where possible. However, many long-haul and island destinations remain accessible only by air, making close communication with airlines essential for those journeys.

For now, Manchester Airport remains operational, but with significantly constrained departures as NATS continues work on its flight processing system. Travellers heading to or from the airport today are being urged, in publicly available guidance, to stay flexible, keep checking for updates and prepare for a longer than usual journey through the terminal.

Alliance News via London Stock Exchange: UK departures disrupted by NATS technical issue

The Independent: Flight delay recovery caused by technical issue will take time

RTÉ News: Air traffic control issue disrupts departing flights at major UK airports

TheTraveler.org: Technical issue triggers UK wide flight delays from Manchester