The NATS Outage Ran Three Days: What That Means If You Flew Later in the Week
The September 2026 NATS fault was resolved within hours, but its knock-on effects on flights, crew, and aircraft positioning ran for days. Here's how that affects your compensation rights if you were disrupted later in the recovery.
NATS announced that the technical fault behind the September 2026 outage was resolved by around 7:30pm on the day it started, 8 September. But the network took considerably longer to recover. Disruption continued to ease over the following days, and by some reports it took until the Thursday for cancellations and delays to drop to a limited, near-normal number.
Why a four-hour fault caused days of disruption
Once air traffic restrictions force a wave of cancellations, aircraft and crew end up out of position relative to their scheduled rosters for the days that follow. An aircraft that should have been in Manchester overnight is instead still in Faro, a crew that should have started their shift at Gatwick is instead stuck in a hotel near Stansted. Airlines then have to rebuild their schedules around wherever their aircraft and crew actually ended up, which produces further delays and cancellations that trace back to the original fault without being caused by it directly on the day.
Does the original NATS fault still cover a cancellation two days later?
This is judged on the facts of each specific flight, not by treating the whole week as a single event. If your flight, two or three days after the initial fault, was cancelled because the specific aircraft or crew rostered for it was out of position as a direct result of the NATS disruption, that chain of causation can still be argued as connected to the original extraordinary circumstances. If instead your cancellation had its own distinct cause, a separate technical fault, a scheduling decision unrelated to the NATS event, it stands on its own.
What to check if you were affected later in the week
- What reason did the airline actually give for your specific cancellation or delay, not the general news coverage of the NATS event
- Whether your aircraft's registration or your crew can be traced to a knock-on rotation problem from earlier in the week (airlines don't always volunteer this, but it can come out in correspondence)
- How much notice you were given, since a cancellation announced well in advance as the airline rebuilt its schedule is treated differently to one sprung on you at the airport
Your care entitlements don't fade with time
Whatever the eventual answer on fixed compensation, meals, hotel accommodation for overnight delays, and rerouting or a refund apply just as much on day three of a recovery as they did on day one. If you paid for your own hotel or meals because the airline didn't arrange them, keep the receipts. Reasonable, receipted costs are recoverable even where fixed compensation itself is contested.
How to claim
Klaimly traces the specific cause of your cancellation or delay, whether that's the NATS fault directly, a knock-on rotation problem in the days after, or something unconnected, and pursues whatever you're owed accordingly. We work for a flat 5% fee, only if we win.
Sources: The Traveler, NATS.