FAA Lifts Nationwide US Flight Ground Stop After Four Hours

What changed

The FAA lifted a nationwide US flight ground stop after more than four hours on Friday, ending the longest such stoppage since the 11 September 2001 attacks. The agency said a communication issue affecting all air-traffic-control centres caused the shutdown.

The disruption was enormous:

• More than 8,500 flights were delayed.
• Nearly 8,000 were cancelled.
• More than 3,500 aircraft were already airborne when the stop began.
• US departures were grounded at 15:54 EST, and the skies reopened by 20:15 EST.

Officials said there was no indication of a cyber-attack and that everyone was safe.

Why it matters

Reopening the skies does not put the network back where it was. Aircraft, crews and passengers were left in the wrong places, leaving airlines to untangle a backlog that Transportation Secretary Sean Duffy said could ripple through several days.

The disruption also reached beyond US airports. All US-bound air traffic from the 42 Eurocontrol member states was suspended, affecting flights from Europe and nearby countries. Some Heathrow services were cancelled or delayed, while flights from Gatwick were operating normally. Sydney temporarily grounded US-bound flights, and Air Canada cancelled services between the US and Canada.

For passengers, the key practical point is that an air-traffic-control problem may not bring compensation, because it is generally outside an airline’s control. But US rules still require airlines to offer alternative travel or a full refund for cancelled or significantly delayed flights. The threshold is three hours for domestic flights and six hours for international routes.

The immediate outlook is a slow recovery rather than a clean restart. Airlines including Delta and United began resuming operations, American said it was trying to operate as many remaining flights as possible, and JetBlue planned to resume flights on Saturday morning. How quickly the system normalises depends on how fast that communication failure is resolved and how efficiently the accumulated disruption can be unwound.