Passenger helps Gatwick staff after cancelled flights earlier this month

Passengers have been hit by more delays on Monday morning following further air traffic control issues affecting several airports across the UK.

Airlines have warned customers to expect disruption as National Air Traffic Services’ (Nats) investigates a technical issue at its centre in Prestwick

It comes less than two weeks after the service experienced a “software defect” that caused an air traffic meltdown and disrupted more than 2,000 flights across the country.

Manchester Airport, Belfast City Airport, Belfast International Airport, Glasgow Airport, and Aberdeen Airport are among the airports affected by the last issue.

National air traffic service Nats said: “We are investigating a technical issue at our Prestwick centre in Scotland. To maintain safety, air traffic regulations have been applied to manage traffic demand.

“Engineers are on site investigating and working to resolve the issue. The issue is unrelated to the technical problems experienced earlier this month.

“We apologise for the disruption and any delays to passengers’ journeys. Passengers should check with their airline for the latest information on their flight.”

Have you been affected by the delays? Please get in touch at Harriette.Boucher@independent.co.uk

Travel disruption raises further questions about Nats resilience – EasyJet

EasyJet has said the latest flight disruption “calls into question the resilience of Nats’ systems” after two air traffic control problems within one month.

The airline said in a statement: “A Nats air traffic control system failure in its Prestwick centre is causing delays to flights with some unable to operate.

“This, once again, calls into question the resilience of Nats’ systems and demonstrates the need for firm actions to prevent these repeated failures.

“We will do all we can minimise the impact of this for our customers and advise anyone due to fly today to check our flight tracker for the latest information.”

Harriette Boucher21 September 2026 10:19

Recap: ‘Software defect’ was cause of travel chaos that grounded thousands of flights

Harriette Boucher21 September 2026 10:15

British Airways ‘disappointed’ by disruption

British Airways has said it is “disappointed” as a Nats technical failure causes disruption to many of flights on Monday.

A spokesperson said: “Yet another technical fault with NATS means some of our customers are likely to experience disruption to their travel plans today.

“This is disappointing, and whilst it is an issue that is entirely out of our control, we’re doing everything we can to limit the impact on customers and are keeping them updated.”

(Reuters)

Harriette Boucher21 September 2026 10:14

Several airports impacted by traffic control issues

The technical issue at Nats Prestwick centre is causing disruption to several UK airports.

Manchester Airport, Belfast City Airport, Belfast International Airport, Glasgow Airport, and Aberdeen Airport are among the airports affected by the last issue.

Nats said airports south of Manchester were broadly unaffected, but flights heading north and flights departing Scottish airports were subject to some delay.

London Stansted said it was operating as normal, but some departing flights heading into airspace controlled by Prestwick may be delayed as a result of the issue.

Harriette Boucher21 September 2026 10:11

Ryanair hits out at ‘yet another Nats failure’

Ryanair has hit out at Nats after a technical issue on Monday morning has grounded flights at several airports.

In a statement warning its customers of potential delays, it said: “We have been advised of a NATS Air Traffic Control equipment failure today affecting the airspace above Scotland/Northern England.

“As a result, we expect some delays to flights to/from the UK and Ireland. Affected passengers will be notified and any passengers travelling to/from the UK and Ireland on Mon 21 Sep should check their Ryanair app for the latest updates on their flight.”

Harriette Boucher21 September 2026 10:05

Passengers hit by delays after Nats technical issues

Passengers have been hit by delays at several airports following a National Air Traffic Services air traffic control issue.

Customers have been told to expect disruption as Nats investigates a technical issue at its centre in Prestwick

It comes less than two weeks after the service experienced a “software defect” that caused an air traffic meltdown and disrupted more than 2,000 flights across the country.

Harriette Boucher21 September 2026 10:04



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