Flight disruption hit parts of northern Scotland on Monday after a technical issue at the UK’s NATS Prestwick air traffic control centre led to restrictions that affected services at Inverness Airport and Wick John O’Groats Airport, with knock-on delays and cancellations expected to take time to unwind even after systems were restored.

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Wick and Inverness flights disrupted after Prestwick ATC technical issue

What happened at Prestwick and why it matters for the Highlands

Published coverage and NATS’ public update indicate the technical issue occurred early Monday, September 21, at the Prestwick centre in Scotland. NATS reported the fault was fixed, while air traffic restrictions were being removed in coordination with airports and airlines.

Prestwick is not just a local control facility. Publicly available NATS materials describe Prestwick Centre as home to the Scottish Area Control Centre, which manages high-level controlled airspace over Scotland, Northern Ireland and parts of northern England, and it also supports oceanic operations that interface with North Atlantic traffic. That breadth helps explain why an issue in one centre can ripple outward to multiple airports and routes.

Even when a system fault is resolved, disruption does not end instantly. Restrictions placed for safety reduce the number of aircraft that can enter affected airspace, and the backlog can persist as aircraft and crews fall out of position, airport gates and stands fill up, and airlines have to rebuild schedules for the rest of the day.

How Inverness and Wick were affected

Regional airports such as Inverness and Wick can feel outsized impacts from network constraints because they typically operate fewer daily departures and rely on tight aircraft rotations. When inbound flights are delayed, an aircraft may arrive late for its next leg, and that can cascade into cancellations or extended delays.

Inverness Airport saw services impacted on September 21, according to published coverage in Scottish media, with reporting linking the disruption to a failure affecting flight data processing at Prestwick Centre. Local reporting also highlighted that the incident was part of broader Scotland-wide disruption rather than an issue isolated to Inverness itself.

Wick John O’Groats Airport was also caught up in the same air traffic flow restrictions. For travelers using Wick as a gateway to Caithness, Orkney connections, or onward ground travel in the far north, a single cancellation can be especially disruptive because replacement flights may be limited and alternative rail or road options can add significant time.

Wider disruption across Scotland, Northern Ireland, and northern England

Reports on Monday described delays and cancellations extending beyond the Highlands. Coverage indicated impacts across Scotland’s larger airports as well as airports in Northern Ireland and parts of northern England, reflecting the Prestwick centre’s airspace responsibilities.

AP reporting characterized this as the second technical issue affecting the UK’s air traffic services within roughly two weeks, with disruption expected to continue through at least the end of the day. That context has increased scrutiny of resilience and the travel system’s ability to recover quickly when failures occur.

Separate airport and airline communications carried by UK outlets described flight schedules being “impacted” and warned that delays could exceed an hour in places, underscoring that the most visible consequences for passengers were missed departure slots and late arrivals as traffic levels were safely managed back to normal.

Passenger rights, refunds, and what travelers should do next

For passengers affected by delays or cancellations, the UK Civil Aviation Authority published guidance on September 21 about compensation and consumer protections after the Prestwick incident. The CAA’s statement emphasized that many passengers faced disruption and set out expectations around airlines’ duties to provide care and assistance during delays, such as meals and accommodation where required, while also addressing how compensation rules typically apply when disruption stems from air traffic control-related issues.

Airlines serving Inverness and Wick issued their own operational updates. Loganair, a key carrier for Highland and island connectivity, published an update on September 21 addressing cancellations linked to the NATS issue, directing customers toward rebooking and status information through its channels.

Travelers with same-day or next-day journeys through Inverness or Wick should prioritize real-time sources that reflect fast-changing recovery efforts: airline flight status tools, airport arrivals and departures boards, and notifications tied to specific bookings. Where travel is time-sensitive, passengers may also want to check whether later services are operating before heading to the airport, since recovery can involve last-minute aircraft swaps, crew duty-time constraints, and rerouted inbound flights.