SpaceX debris and an FAA communications failure grounded every flight in the U.S.

Hawaii flights halted due to debris from SpaceX launch amidst FAA's ground stop

The FAA issued a nationwide ground stop for all U.S. flights on Friday, citing "extraordinary circumstances and for reasons of safety." A SpaceX launch's debris separately halted West Coast departures, including Hawaii routes. CNN reported the cause as a communications problem affecting the Air Route Traffic Control Centers that handle cross-country flights. Both stoppages have since been lifted, but airlines warn of lingering delays and urge travelers to check flight statuses.