Travellers flying between Türkiye and the United Kingdom should check their individual service before leaving for the airport. UK air-traffic provider NATS said at 19:30 on 8 September that the system fault had been resolved and normal operations had resumed, but clearing the accumulated flight backlog was still taking time. Turkish Airlines subsequently warned that some services arriving in or departing from the UK could experience delays or cancellations. This is not a notice that every Türkiye–UK flight is cancelled or that UK airspace remains closed.
The technical fault is fixed, but the timetable can still be disrupted
NATS first identified the problem in its flight-processing system, implemented a fix and then declared the system resolved. Its final 8 September statement said operations were normal while teams worked through the backlog. Recovery after an air-traffic restriction can continue after the technology is restored because aircraft and crews may be out of position, airport stands may be occupied and earlier cancellations can affect later rotations.
Turkish Airlines has not announced a blanket cancellation
The airline's customer alert says some UK-bound and UK-originating services may be delayed or cancelled and directs passengers to TK Assistant or the flight-status page. It does not identify every affected flight, close a route or say all London services are suspended. A route-level headline therefore cannot replace the live status attached to a flight number and date.
Check the operating carrier as well as the ticket seller
For a Turkish Airlines-operated service, use the carrier's official flight-status tool and the contact details stored in the booking. A codeshare ticket may display more than one flight number, so confirm the operating carrier and its status too. Travellers connecting in Istanbul should check both sectors separately; an on-time first leg does not prove that the UK sector will operate to schedule.
Airport departure boards are the second confirmation point
After checking the airline, review the official departure or arrival information for the relevant UK airport. Heathrow, Gatwick, Manchester, Birmingham and other airports can recover at different speeds. Keep the booking reference and contact information current, allow for a longer connection where possible, and do not travel to an alternative airport unless the airline has rebooked the itinerary.
Rebooking and refunds depend on the actual disruption
Turkish Airlines' general disruption guidance provides change or refund processes under the rules applying to a cancellation, delay, schedule change or extraordinary circumstance. The NATS incident by itself does not establish an identical remedy for every passenger. Use Manage Booking or the airline's support channel after the flight status changes, and keep notices and receipts if the journey is disrupted.
Verified position early on 9 September
The safe reading is narrow: the underlying NATS system issue has been resolved, UK airspace is not described as closed, and residual delays or cancellations remain possible while schedules recover. Passengers should rely on their flight number rather than viral claims about all UK flights. The official Turkish Airlines flight-status page is at https://www.turkishairlines.com/en-int/flights/flight-status/.